Colored chemicals in beakers

Below is a list of common chemical names, their chemical formula, common name, storage code, mass and density, as well as notes on where to find the chemical (other than a chemical supply house).  Use as a reference when conducting chemistry experiments, shopping for chemical supplies, and storing chemicals at home, or setting up your own chemistry lab.

If you find a missing chemical that you would like added, shoot Reeko an email and he’ll add it to the list.

Storage color codes

White Corrosive Store away from combustible and flammable chemicals.
Yellow Reactive/Oxidizer May react violently with water. Store separate from combustible and flammable chemicals.
Red Flammable Store only with other flammable materials.
Blue Toxic Store in secure area.
Green Moderate Store in general chemical storage.
Gray or Orange (obsolete) Moderate Store in general chemical storage.
Stripes Incompatible Incompatible with other reagents of the same color code. Store separately.


Note: Shelf Life (Life) in RED indicates peroxide forming timeline, i.e. after X lifetime, this chemical may begin forming dangerous peroxides.

Chemical name Chemical formula Common names Molar Mass (g/mol) Density Storage code Life (mo) Notes
Acetaldehyde C2H4O 59.067 0-30% (18°C) Red Stripe
Acetamide C2H5NO 60.052 0-6% (15°C) Blue
Acetic acid CH3COOH 5% Solution: White vinegar 96.086 0-100% (20°C) Red White vinegar is 5% solution, Cleaning vinegar is 10% solution.  May also be found in photography supply store as “Indicator Stop Bath” at 89% solution.
Acetone CH3COCH3 Acetone 17.031 0-100% (20°C) Red Can be found as nail polish remover, fiberglass cleaner.  Industrial grade paint removers will contain more acetone still. Some stores sell pure acetone as well.
Acetylene gas C2H2 Ethyne Red Found at hardware stores or welding supply houses as “acetylene”.
Acetylsalicylic acid C9H8O4 Aspirin 180.16 Green
Aluminum (powder) Al Aluminum Red Can be found at art supply stores or fiberglass supply shops as aluminum powder.
Aluminum ammonium sulfate AlNH4(SO4)2 ammonium alum Green Found at art supply house as mordant for dying and painting. May be found in organic food supply store by name.
Aluminum chloride AICL3 62.068 0-40% (15°C) Yellow  Known as sal ammoniac.  May be found in hardware store.
Aluminum hydroxide Al(OH)3 alumina hydrate Green Some Antacid Tablets may contain 100% (e.g. Alu-cap, Amphojel, Dialume)
Aluminum nitrate AI(NO3)3 368.343 Yellow  Nitrate of ammonia may be found in a garden supply store.
Aluminum oxide Al2O3 alumina Green Found at welding/industrial supply houses as “sandblasting sand”.
Aluminum potassium sulfate KAl(SO4)2 Alum, potassium aluminum sulfate Green Found as mordant for clothing dyes (e.g. RIT).
Aluminum sulfate Al2(SO4)3 Flocculating Powder 68.007 0-26% (15°C) Green Found as swimming pool chemical by name.
Ammonia NH3(aq); NH4OH Ammonia, Ammonium Hydroxide 128.355 0-30% (20°C) Green Household ammonia typically a 10% solution, drug store as “strong ammonia at 27%, or in a pure form from welding supply store.  Note: shake it, if bubble appear then it is impure and contains soap.
Ammonium bicarbonate (NH4)HCO3 Salt of Hartshorn, Baker’s Ammonia Green
Ammonium bifluoride NH4HF2 Ammonium hydrogen fluoride White May be found at hardware store as toilet bowl cleaner or rust stain remover.
Ammonium bromide NH4Br Green Found at photography store as “bleach bath” for photograph development.
Ammonium carbonate (NH4)2CO3 Smelling Salts, Salt of Hartshorn, Baker’s Ammonia 134.452 Green Found at drug store as smelling salts.
Ammonium chloride NH4Cl Soldering Flux 30.026 0-24% (20°C) Green Found at hardware store as “salt of ammon”.
Ammonium hydroxide NH4OH 100.459 0-62% (20°C) White Stripe 36
Ammonium nitrate NH4NO3 Ammonium Nitrate 329.244 0-50% (20°C) Yellow (separate) Found at garden supply as “nitrate of ammonia” or in pharmacy as single-use cold packs.
Ammonium persulfate (NH4)2S2O8 Etching Solution, Ammonium Peroxodisulphate yellow Found at electronics supply as “circuit board etching solution”
Ammonium phosphate (NH4)3PO4 Fertilizer Green Found at garden supply by name
Ammonium sulfate (NH4)2SO4 84.007 0-50% (20°C) Green Found at garden supply as fertilizer or pH adjuster.
Amylose (C6H9O5)n Cornstarch Found at grocery store as corn starch.
Anthocyanin Can be extracted from Red Cabbage by cutting, boiling, then filtering.
Argon gas Ar Found at welding supply store by name. It’s also the inert filler gas inside incandescent light bulbs but good luck sucking it out.
Ascorbic acid C6H8O6 Vitamin C Green Found as Vitamin C tablets.
Barium carbonate BaCO3 Green
Barium chloride BaCl2 180.156 0-26% (20°C) Blue 36
Barium hydroxide Ba(OH)2 94.11 Blue
Barium nitrate Ba(NO3)3 214.001 Yellow
Barium sulfate BaSO4 Lithopone Green Often used  as a radio contrast agent for x-rays and CAT scans.
Benzoyl peroxide C14H10O4 benzoic acid peroxide Red Stripe Found at hardware store as 50% benzoyl peroxide under the brand name “Minwax High Performance Wood Filler”.
Bismuth Bi Lead-free shot/sinkers White (concentrated)
Bismuth subsalicylate C7H5BiO4 Pepto-Bismol Active ingredient in Pepto-bismol and Kaopectate.
Boric acid H3BO3 Ant/Roach Killer Green Found at grocery store, drug store, hardware store by name.
Bromthymol blue C27H28Br2O5S pH Test Green 24 Often used in aquarium pH test kits.
Butane C4H10 Butane Red Found at camping stores as stove fuel.
Caffeine C8H10N4O2 No-Doz Green Found at grocery store but often blended with starch.
Cadmium sulfide CdS Cadmium Yellow Found at fine art supply house.
Calcium carbide CaC2 Red Stripe
Calcium carbonate CaCO3 Limestone, Carbonate of Lime Green Found at builder’s supply as chalk, limestone and marble chips and in fine art stores as “marble dust” or “precipitated chalk”.
Calcium chloride CaCl2 Laundry Aid/Road Salt/De-Icer 339.787 0-40% (20°C) Green 36 Found at hardware store as road salt or in pool supply as a water hardening agent.
Calcium hydroxide Ca(OH)2 Slaked Lime, garden lime 97.995 Green Found at garden store.  Can be made from lime or quicklime by adding water to create slaked lime. Can be made by dissolving calcium chloride with sodium hydroxide in water.
Calcium hypochlorite Ca(ClO)2 Yellow
Calcium nitrate Ca(NO3)2 Norwegian saltpeter 80.103 0-68% (18°C) Yellow Available from garden supply and agricultural supply stores as a fertilizer.
Calcium oxide CaO Lime, Quicklime Green Can be made by heating calcium carbonate at very high temperatures (> 740 °C).
Calcium phosphate, monobasic Ca(H2PO4)2 superphosphate Green Found at garden supply stores.
Calcium sulfate anhydrous CaSO4 39.997 Green Found at art supply stores as Terra Alba. Can be made from commonly available plaster of paris by additional heating to above 180C.
Calcium sulfate dihydrate CaSO4 Gypsum Green Can be made from the reaction of Plaster of Paris with Water.
Calcium sulfate, hemihydrate CaSO4 Plaster of Paris Green Found at hardware stores, arts and craft stores, and hobby shops.
Camphor C10H16O Red Found at Chinese grocery stores as a flavor additive.
Carbon C Soot, Graphite, Graphene, Carbon nanotubes, Fullerenes, Diamond, Charcoal Red Found at pet supply store as activated charcoal for fish tanks. Found in art supply stores as Lamp Black pigment. Can be extracted from graphite leads used in pencils.  Pure or near-pure carbon can be produced through the reaction of Sucrose with Sulfuric Acid.  Could probably be extracted from your mother’s diamond necklace.
Carbon dioxide CO2 Various Found at party stores as dry ice.  Found at sporting good stores in gas form as propellant for air guns.
Carbon disulfide CS2 74.072
Carbonic acid H2CO3 Blue Soda water is a dilute solution of carbonic acid. Can be made in varying strengths with home soda makers.
Carrageenan Used in many commercial food preparations as a thickener and gelling agent.
Cellulose (C6H10O5)n Green Can be extracted from undyed, processed cotton  or 100% cotton paper.
Chloroauric acid HAuCl4 76.141
Chloroform CHCl3 74.122 Blue Air
Chromium(III) chloride CrCl3 144.0105 0-14% (18°C) Green
Chromium(III) nitrate Cr(NO3)3 128.034 Yellow
Chromium(III) sulfate Cr2(SO4)3 68.995 0-40% (15°C) Green
Chromium oxide Cr2O3 Chrome Green 102.894 0-60% (15°C) Blue Found at art supply houses as a powder (green pigment) or at hardware store as ‘Green Rouge’ for polishing metal.
Chromium(VI) oxide CrO3 102.894 0-60%(15°C)
Citric acid C6H8O7 Sour Salt 80.043 0-55% (20°C) Green Found at photography supply stores and in grocery store as “sour salt”.
Cobalt(II) nitrate Co(NO3)2 85.104 Yellow
Cobalt(II) sulfate CoSO4 84.995 Green
Copper Cu Red (powder) Found at hardware stores as electrical wire, copper pipe, copper sheeting.  Pennies prior to 1982 are 95% copper (5% zinc).
Copper(I) chloride Cu2Cl2 284.047 0-20% (20C)
Copper(II) chloride CuCL2 151.748 0-20% (20°C)
Copper naphthenate Cu(C11H10O2)2 cupric naphthenate Found at hardware store as wood preservative (e.g. Wolman, Jasco) in up to 25% copper naphthenate solutions.
Copper(II) nitrate Co(NO3)2 79.100 0-25% (20°C)
Copper(II) sulfate (anhydrous) CuSO4 cupric sulfate (anhydrous) 128.526 0-20% (18°C) Found at garden supply store as a rootkiller.
Copper sulfate pentahydrate CuSO45H2O cupric sulfate, blue vitriol, bluestone Found at garden supply store as rootkiller (e.g. Zep Root Kill, Rooto Root Kill) and for pest control.
Cyanuric acid C3H3N3O3 isocyanuric acid Found at  swimming pool and lawn/yard supply stores as a chlorine stabilizer.
Dextrose C6H12O6 glucose, corn syrup Green Found at grocery store as corn syrup. Dextrose is right-handed (dextrorotatory) glucose. Levulose is left-handed (levorotatory) glucose. Most products are a half-and-half mix.
Dichloroacetic acid C2H2Cl2O2 299.025 0-30%(20°C) White
Dichloromethane CH2Cl2 methylene chloride Blue Found at hardware store as a solvent, degreaser and adhesive remover up to around 74% purity.
Dimethyl sulfoxide (CH3)2SO DMSO Red Found at  health food and naturopathic supply stores for treating injuries. Warning: DMSO will allow anything it has dissolved to pass directly through your skin into your bloodstream.
Ethanol/ethyl alcohol C2H5OH Everclear Red Found at liquor stores as 95% pure ethanol and 5% water. Found at hardware stores in denatured form.
Ether (C2H5)2O diethyl ether, ethoxyethane Red 12 Found at auto supply stores in aerosol cans as “Starter Fluid” or “Cold Start Spray”.
Ethylene glycol CH2OHCH2OH 1,2-ethanediol 125.844 0-60% (20°C) Green Found at auto supply stores as antifreezes.
Eugenol CH2CH2CH2C6H3(OCH3)OH oil of clove, 2-methoxy-4-(2-propenyl)phenol Green Found at health food stores as a somewhat impure form of clove oil.
Formaldehyde CH2O2 171.342 0-40%(15°C) 36
Formic acid CH2O2 methanoic acid 171.342 0-100% (20°C) Red Found at hardware stores as stain removers.  Can be extracted from the blue chamber of “Clorox Dual Action Toilet Bowl Cleanser” in 5% dilution.
Fructose C6H12O6 Fruit Sugar 296.653 0-48% (20°C) Various Found at grocery stores.
Glucose C6H12O6 Dextrose, corn syrup 74.079 0-60% (20°C) Green Found at grocery stores as corn syrup.
Glycerin, glycerol C3H8O3 1,2,3-propanetriol 32.042 0-100% (20°C) Green Found at drug stores as a skin softener.
Gold Au Green Found in dad’s gold coin collection (99% pure) or as gold dust or gold foil from art supply stores.  Note: Gold jewelry is typically not pure gold.
Gum Arabic CH4O3S gum acacia Green Found at art supply stores as a binder for turning pigments into paints.
Helium He Red Found at party supply stores, often as a mixture of helium and normal air (balloon gas).
Hexamine C6H12N4 Hexamethylenetetramine Sold at camping stores as solid fuel tables (typically in combination with 1,3,5-trioxane).
Hydrazine N2H4 154.756 0-60%(15°C)
Hydrogen gas H2 Hydrogen Red Can be captured from electrolysis of water or by adding aluminum foil to a solution of Sodium Hydroxide (highly flammable and explosive).
Hydrobromic acid HB4 53.491 0-65%(257deg;C) White
Hydrochloric acid HCl Masonry Cleaner, Muriatic acid 92.096 0-40% (20°C) White 24 Found at hardware store as masonry cleaner and in silverware cleaner typically in concentrations as high as 35%. Can be made by performing electrolysis on salt water with platinum anodes and cathodes, and combining the gases away from sunlight.
Hydrocyanic acid HCN 35.046 0-16%(15C)
Hydrofluoric acid HF Glass Etching Solution 208.233 0-50% (20°C) White Can be found at hardware store as aluminum brightener and tire cleaner, at art supply for etching glass, or at grocery store as a rust remover. Note: hydrofluoric acid must be stored in polyethylene or Teflon containers – it’ll eat through glass containers.
Hypochlorous acid HClO Laundry Bleach Found at grocery store as bleach.
Hydroquinone C6H6O2 Green Found at photography stores.
Hydrogen peroxide H2O2 Peroxide 106.441 0-100% (18°C) Yellow (concentrated) Found at drug store as hydrogen peroxide antiseptic (3%), Clairoxide hair bleach (12%).  May be found at health food stores as a source of “natural oxygen” in 35%. Warning: Do not heat unless your lifelong dream is to become a self-propelled rocket.
Hydroiodic acid HI 119.378 White
Iodic acid HIO3 409.818 Green
Iodine I2 Iodide White 18 Found at drug stores as solution of iodine and ethyl alcohol used for treating wounds.  Available at camping stores as water sterilization chemical. Iodine is illicitly used in the production of methamphetamine, making iodine somewhat difficult to obtain.
Iron (powder) Fe Red Stripe Found at hardware stores as steel wool, iron nails, iron bolts, nuts, and screws.
Iron(II) ammonium sulfate FeSO4+(NH4)2SO4 189.616
(Iron(III) Chloride (Ferric chloride) FeCl3 Etching Solution 32.045 0-50% (20°C) Green Found at electronics stores as an etching solution for circuit boards.
Iron(III) Oxide (Ferric oxide) Fe2O3 Rust Green Found at art supply stores in purified form as the artists pigment “Red Iron Oxide”.  It’s nothing more than rust – it’s everywhere!
Iron(II III)Oxide (Ferrous ferric oxide) Fe3O4 Magnetite Green Found at art supply stores as the artists pigment “Mars Black”.
Iron(II) sulfate FeSO4 Ferrous sulfate, Sulfate of iron, Copperas Found at garden supply stores as a nutrient or at textile supply stores  as a mordant for pigments.
Iron(III) sulfate Fe2(SO4)3 210.90 0-20% (17.5°C)
Kerosene CnH2n+1 (n=12–16) Aviation Fuel Red Found at hardware stores as lamp oil or kerosene.
Lactic acid C3H6O3 Milk Acid 394.995 0-80% (20°C) White Stripe Found at grocery stores and health food stores.
Lactose C12H22O11 74.551 0-18%(20°C) Green
Latex C3H6O3 Liquid Latex Body Paint Found at hobby shops, magic stores, and oddly, at adult stores (don’t ask).
Lead Pb Blue May be found at sporting good stores as lead shot or lead sinkers (may be alloyed with tin).
Lead(II) acetate Pb(C2H3O2)2 133.341 Blue
Lead(II) chloride PbCl2 127.912 Blue
Lead(II) nitrate Pb(NO3)2 60.095 Yellow
Lead(IV) acetate Pb(C2H3O2)4 212.996 Blue
Linseed oil Red May be found at hardware or art supply stores as paint binder or finish for wood. Note: “boiled linseed oil” contains Lead Oxide.
Lithium Li Blue Can be extracted from Lithium batteries.
Lithium chloride LiCl 80.912 0-30%(20°C)
Magnesium (chips) Mg Fire starter Red Found at camping stores as a fire starter.
Magnesium carbonate MgCO3 Athlete’s chalk Green Found at sporting good stores as as a powder for gymnastics, weightlifting, and climbing to help keep hands dry (may be combined with calcium carbonate). May be found at drug store as antacid (some are pure magnesium carbonate).
Magnesium chloride MgCl2 Nigari or Lushui 36.461 0-30% (20°C) Green
Magnesium hydroxide Mg(OH)2 Milk of Magnesia Green Found at drug store as Milk of Magnesia
Magnesium nitrate Mg(NO3)2 128.260 Yellow
Magnesium silicate Mg3Si4O10(OH)2 Talc Found at drug store as Talcum powder.
Magnesium sulfate MgSO4 Epsom Salt 142.042 0-26% (20°C) Green 36 Found at drug store as epsom salt or at photography store  as a chemical for photographic development.
Maleic acid C4H4O4 74.122 0-40%(25°C) Green
Malonic acid C3H4O4 88.105 0-40%(20°C) Green
Maltose C12H22O11 194.120 0-60%(20°C) Green
Manganese dioxide MnO2 Pyrolusite Green Found at hardware store black powder.
Manganese(II) chloride MnCl2 27.025 Green
Manganese(II) sulfate MnSO4 78.045 0-30%(20°C) Green
Mannitol C6H14O6 65.74 0-15%(20°C) Red
Mercury Hg quicksilver Blue Hazardous and difficult to find. May be found at hobby stores as quicksilver. Can be extracted from old mercury thermostats.
Mercury(II) chloride HgCl2 20.006
Mercury(II) nitrate Hg(NO3)2 226.268
Mercury(II) sulfate HgSO4 126.043
Methane CH4 Natural Gas Red May be extracted from cow farts if you have a long stick, a tight-wound clothespin, and the stomach for it.
Methanol CH3OH Methyl Alcohol 294.185 0-100% (15°C) Red Found at paint supply stores as a solvent under the names “wood alcohol” or “methyl alcohol” or at auto supply stores as a gasoline line anti-freeze.
Methyl acetate C3H6)2 28.079 0-20%(20°C) Red
Methyl ethyl ketone CH3COC2H5 MEK Red Found at hardware stores.
Methyl ethyl ketone peroxide C8H16O4 MEKP Red Found at hardware and boating supply stores in a dilute solution as a catalyst for the polymerization of polyester resins.
Methyl isobutyl ketone CH3COCH2CH(CH3)2 MIBK Red Found at hardware stores.
Methylene blue C16H18ClN3S Methidote Green Found at pet stores as a medicine to treat small injured fish.
Methylene chloride CH2Cl2 dichloromethane Blue Found at up to 74% solutions in hardware, auto supply, and some craft stores as a solvent, degreaser and adhesive remover (e.g. Champion Paint Off, Klean Strip Graffiti Remover).
Methyl salicylate C6H4(OH)COOCH3 Oil of Wintergreen Green Found at drug stores.
Mineral oil complex mixture of hydrocarbons Green Found at drug stores as an emollient or in some baby oils (likely contains fragrances).
Monosodium glutamate C5H8NO4Na “MSG” Found at Chinese or Japanese grocery stores as a condiment or at grocery stores as a “flavor enhancer”.
Naphthalene C10H8 moth balls Red Found at hardware and grocery stores.
Nickel Ni Blue Found at welding supply stores as a welding filler material or in pre-1985 Canadian nickels.
Nickel chloride NiCl2 34.015 0-30%(18°C) Blue
Nickel nitrate Ni(NO3)2 97.181 0-35%(20°C) Yellow
Nickel sulfate NiSO4 194.050 0-18%(18°C) Blue
Nicotine C10H14N2 136.086 0-60%(20°C) Blue
Nitric acid HNO3 236.421 0-100%(20°C) Yellow
Nitrogen N2 liquid nitrogen Red Found at hospital, laboratory, university, welding supply house, and industrial gas suppliers.
Nitrous oxide N2O whipping gas, laughing gas Red Found at grocery store whipped cream canisters or restaurant supply houses.
Oxalic acid C2H2O4 rust remover, non-chlorine bleach powder cleanser 208.474 0-10% (17.5°C) White Found at hardware stores as radiator cleaner, “wood bleach powder”, rust remover, and as “Prestone Heavy Duty Cooling System Cleaner” (98%).
Oxygen O2 Red Found at welding shops and some hardware stores in portable welding oxygen tanks. Can be generated in small quantities from the electrolysis of water.
Para-dichlorobenzene C6H4Cl2 moth flakes, moth crystals Found at hardware and grocery stores.
Paraffin CnH2n+2 (n>19) Green Found at grocery stores as a sealant for home canning and at art supply stores as “wax” for candles.
Perchloric acid HCIO4 110.984 0-28%(15°C)
Phenol C6H5OH 151.001 0-5% (15°C) Red Stripe
Phenolphthalein C20H14O4 Green 36 Found at magic shops as a pinkish disappearing ink. Get I before it’s gone!
Phenol C6H6O 151.001 0-5%(15°/C) Red
Phenol red C19H19SO5 phenolsulfonephthalein Red 24 Found at swimming pool supply stores as a pH tester.
Phosphoric acid H3PO4 pH Down 261.337 0-100% (20°C) White Found at pets stores as pH reducers in dilute solutions (30%). Found at hardware stores as rust remover or “Naval Jelly”. Found at hobby stores as solder flux.
Polystyrene casting resin Found at hobby shops.
Polyurethane foam Mountains in Minutes Found at hobby shops, hardware, or stores.
Potassium aluminum sulfate KAl(SO4)2 Alum, aluminum potassium sulfate Found at natural health stores as a “deodorant stone”.
Potassium bicarbonate KHCO3 3105.180 0-24%(15°C) Green
Potassium bitartrate KHC4H4O6 Cream of Tartar Green Found at grocery stores as Cream of Tartar.
Potassium bromate KBrO3 99.994 yellow
Potassium bromide KBr 1105.92 0-40% (20°C) Green Found at photography stores.
Potassium carbonate K2CO3 Potash 187.556 0-50% (20°C) Green Found at some  garden supply and agricultural stores.
Potassium chlorate KCIO3 336.206 0-4%(20°C) Yellow
Potassium chloride KCl Salt substitute 175.911 0-24% (20°C) Green Found at grocery stores as a salt substitute and as a road de-icer.
Potassium chromate K2Cr04 342.296 0-30%(18°C) Blue 36
Potassium cyanide KCN 128.942 Blue
Potassium chromium sulfate KCr(SO4)2 potassium chrome alum Found at photography stores.
Potassium dichromate K2Cr2O7 331.210 0-10% (20°C) Yellow Found at photography stores.
Potassium iron (ii) hexacyanoferrate(iii) KFe[Fe(CN)6] potassium iron ferricyanide, potassium ferroferricyanide Found at grocery stores as Mrs. Stewart’s liquid (to whiten clothes).
Potassium hydrogen phosphate K2HPO4 63.013 0-8%(20°C)
Potassium hydroxide KOH Caustic potash 100.115 0-50% (15°C) Red (concentrated) Difficult to find. May be the active ingredient in some drain cleaning solutions.May be found at veterinary supply houses for dissolving hair and horns in animals.
Potassium iodate KIO3 119.002 Yellow
Potassium iodide KI Radiation Pills 138.206 0-55% (20°C) Green 24 Found at outdoor stores as a pill form to avoid the uptake of radioactive iodine during a nuclear accident.
Potassium metabisulfite K2S3O5 Campden tablets May be found at stores that cater to winemaking and brewing processes.
Potassium nitrate KNO3 Saltpeter, saltpetre 60.095 0-24% (20°C) Yellow Found at grocery store as saltpeter or quick salt (to cure corned beef). Found at gardening stores as fertilizer, tree stump remover, and root killer.
Potassium nitrite KNO2 311.799 Yellow
Potassium permanganate KMnO4 Clearwater 105.988 0-6% (20°C) Yellow May be found at aquarium stores in 50% solution called Clearwater or in hardware stores in 98% solution for treatment of hard well water (acts as a softener).
Potassium sulfate K2SO4 128.108 0-10%(20°C) Green
Potassium sulfide K2S 110.262 Red May ignite on contact with air.
Potassium sulfite K2SO3 82.079 0-26%(15°C)
Potassium sodium tartrate NaKC4H4O6 Rochelle salt Green Found at drug stores.
Propane C3H8 Red Found at picnic supply stores as barbeque fuel.
Propanol (propan-2-ol) CH3CHOHCH3 rubbing alcohol 228.065 0-100% (20°C) Red Found at drug stores as rubbing alcohol (isopropyl alcohol) in a fairly concentrate form.
Silicon carbide SiC Carborundum Found at industrial supply houses as a hard, abrasive powder for use in sandblasting.
Silicon dioxide SiO2 Sand, silica Found at building supply and aquarium stores as quartz sand. Found at hobby shops as mold making material or filler for rubbers and plastics under the name Min-u-Sil brand.  Found in silica desiccant packets found in many sealed food envelopes, electronics boxes, and other packaging.
Silver (dust) Ag Blue Found at gold and silver coin shops as silver coins (74%) and bullion, often at bullion value.
Silver nitrate AgNO3 120.176 0-40%(20°C) Yellow 24
Silver sulfate Ag2SO4 141.959 Green
Sodium acetate NaC2H3O2 Hand Warmer 342.151 0-28% (20°C) Green Found at sporting goods stores in hand-warmers. Can also be made through the reaction of baking soda and vinegar.
Sodium borate Na2B4O7 Green Found at grocery stores in diluted solution of Borax. Can be made pure by heating to 200C (note: it will begin absorbing moisture when cooled if left in open).
Sodium bicarbonate NaHCO3 Baking Soda, Bicarbonate of Soda Green 24 Found at grocery store as “single action baking soda”. Note: there’s a difference in baking soda and baking powder.  Baking powder has other ingredients.  Also, Double action baking powder contains corn starch.
Sodium bisulfate NaHSO4 pH Down Green Found at pool supply store as Crystal Vanish drain cleaner.
Sodium bromide NaBr Hot Tub Salt Green Found at pool supply stores.
Sodium carbonate Na2CO3 Washing soda, soda ash 90.609 0-14% (20°C) Green Found at grocery store as washing soda and at pool supply stores as PH Up and PH Plus (used to raise pH).  Can be made by backing Sodium Bicarbonate (backing soda) at 350 degrees.
Sodium chlorate NaClO3 46.068 0-34% (18°C) Yellow Found at gardening and agricultural stores as a herbicide (e.g. Atlacide, Defol, Drop-Leaf, and Tumbleaf).  Check label for potential impurities.
Sodium chloride NaCl Salt 162.204 0-26% (20°C) Green 24 Found at grocery store as table salt possibly with magnesium carbonate (as a anti-caking agent) and sodium iodide impurities.  Uniodized salt will generally be more pure.
Sodium chromate Na2Cr)4 325.288 0-26%(18°C)
Sodium fluoride NaF Blue Difficult to obtain in pure form. May be found at dental supply stores.
Sodium hexametaphosphate (NaPO3)6 Sodium polymetaphosphate, Calgon water softener Green Found at grocery store as primary ingredient of Calgon water softener. Found under other names including: glassy sodium, Graham’s Salt, and hexasodium salt.
Sodium hydroxide NaOH Lye, Caustic Soda 167.000 0-50% (20°C) White Stripe Found at grocery and hardware stores as caustic soda and lye.
Sodium hypochlorite NaClO Bleach Green Found at grocery store in diluted form as household bleach (5% sodium hypochlorite).
Sodium nitrate NaNO3 Chile saltpeter 110.111 0-45% (20°C) Yellow Found at garden supply stores.
Sodium nitrite NaNO2 82.034 0-20%(15°C) Yellow
Sodium metabisulfite Na2S2O5 Campden tablets Green Found at winemaking or brewing stores as a sterilizing agent in the brewing processes. Check label for impurities.
Sodium percarbonate 2Na2CO3 sodium carbonate peroxyhydrate May be found at hardware stores as wood bleach (for decks and outdoor wood furniture). May be labeled “oxygenated bleach”.
Sodium phosphate Na3PO4 Tri Sodium Phosphate 324.600 0-8% (20°C) Green Found at hardware stores as Tri-sodium phosphate, commonly known as TSP (used to clean walls prior to painting).
Disodium phosphate Na2HPO4 pH Down Green Found at pet stores and used to lower the pH of aquarium water.
Sodium silicate Na2SiO3, Na2Si3O7 water glass, egg preserver, magic rocks Green May be found at hardware stores, drug and ceramic stpres as a flocculent in clay slip casting.
Sodium sulfate Na2SO4 211.630 0-24% (20°C) Green May be found at photography stores.
Sodium sulfide Na2S 76.121 0-18%(18°C) Red Stripe
Sodium sulfite Na2SO3 150.087 0-18% (19°C) Green May be found at photography stores.
Sodium tetraborate decahydrate Na2B4O710H2O Borax Green May be found at drug store as Borax (e.g. Twenty-Mule-Team Borax Laundry Booster).
Sodium thiosulfate Na2S2O3 Hypo 89.093 0-40% (20°C) Green 18 Found at photography stores and pet shops as a de-chlorination additive to fish water.
Stearic acid C17H35CO2H candle hardener Green May be found in arts and crafts stores.
Strontium chloride SrCl2 74.122 0-36%(20°C) Green
Strontium nitrate Sr(NO3)2 342.296 Yellow
Strontium sulfate SrSO4 183.683
Steel Fe alloyed with C and depending on type, possibly also Ni, B, V, Cr among others Galvanised wire, nail (fasteners), stainless steel, ball bearings, steel wool Pure steel is difficult to find and carbon content will vary widely.  Many impurities including nickel, silicon, boron, zinc, etc. May have to make do with galvanized or stainless steel materials such as nails, screws, tools, steel wool, bearings, steel wire, etc.
Sucrose C12H22O11 Sugar Green Found at grocer store as table sugar.
Sulfur (sulphur) S Green May be found at garden stores as “flowers of sulfur” (to treat plant diseases) or as “Organic Garden sulfur”. May be found at drug stores.
Sulfuric acid H2SO4 vitriol, oil of vitriol 74.093 0-100% (20°C) White 24 Found at hardware stores as battery acid, at plumbing supply stores as a buffered solution (e.g. “Pro Liquid Drain Cleaner”) or at a pet supply store as a diluted solution used to lower pH in aquariums.
Sulfurous acid H2SO3 128.088
Tannic acid C76H52O46 tannin Blue Found in arts and crafts stores in dyes and fabric section.
Tartaric acid C4H6O6 wine preservative 136.141 0-56% (15°C) Green May be found at wine-making supply stores.
Tetrachloroethylene C2Cl4 tetrachloroethene Blue May be found at hardware, auto supply, and home improvement stores in aerosol form under brands such as “Lectra Motive Auto Care” and “Gummout Professional Brake Parts Cleaner” (99% pure).
Thymolphthalein C28H30O4 disappearing ink Green Found at magic supply stores as blue disappearing ink. Get it before it’s gone!
Tin(II) chloride SnCl2 241.860 0-65%(15°C)
Tin(IV) chloride SnCl4 399.878 0-28%(15°C)
Titanium dioxide TiO2 Titanium White Found at art supply stores as a fine powder for use as a pure white pigment.
1,1,1 trichloroethane CCl3CH3 cleaning fluid, degreaser Green Found at hardware stores.
1,1,1,2 tetrafluoroethane CF3CH2F Green
Thiourea CS(NH2)2 Thiocarbamide Blue Found in hardware stores as silver cleaning products such as Hagerty and Tarn-X. Check label for potential inactive ingredients (impurities).
Toluene C6H5CH3 Methylbenzene, cellulose thinner Red Found at hardware stores as a solvent.
Town gas A mixture mainly consists of hydrogen, carbon monoxide and methane Nil. Found in urban area. Carbon monoxide can be removed from the mixture by passing the gas through large quantity of citrated chicken blood while chanting voodoo prayers.
Trichloroethylene CHClCCl2 trichloroethene Blue Found at hardware and auto supply stores as a near pure aerosol under brand names such “Lectra Clean” and “Trouble Free Rust Buster”.
Tungsten W Green Found at welding supply stores as TIG electrodes. Also found in most incandescent light bulbs (the filament is made of tungsten).
Turpentine Red Found at hardware stores and fine art supply stores.
Urea H2NCONH2 ice melter, fertilizer, carbamide 189.374 0-46% (20°C) Green May be found at  hardware stores and at garden supply stores as “Bonide Azalea” fertilizer (99% urea).
Water H2O Green Found at grocery stores as distilled (pure) water. This and “deionized” water are sufficient for most chemical reactions.
Xylene C8H10 dimethylbenzene Red Found at hardware stores, paint stores, and fine art supply stores.
Zinc (powder) Zn zinc Red Stripe
Zinc bromide ZnBr2 154.996 0-65%(20°C)
Zinc chloride ZnClf Tinner’s Fluid, “killed acid” 74.078 0-28% (20°C) White Found at hardware stores for cleaning copper. Can be created by dissolving a small amount of zinc in hydrochloric acid.
Zinc nitrate Zn(NO3)2 165.873 0-50% (18°C) White
Zinc oxide ZnO pompholyx Green Found at fine arts stores as “Chinese White” fine arts pigment.
Zinc sulfate ZnSO4 zinc sulfate 98.078 0-16% (20°C) Green Found at hardware and garden stores as “Moss Killer” for use on roofs and concrete.

Safety warning

Remember, carefully label your chemicals and store according to color code!  The Hazard Diamond (see below) can also be used to easily identify chemical properties on stored chemicals.

Hazard Diamond for easy identification of chemical properties on stored chemicals