| Acetic Acid (Glacial) | CH₃COOH | White vinegar (grocery); Artcraft (glacial) | 5% (vinegar) or concentrated photo grade |
| Activated Charcoal | C | Pet store aquarium / reptile supplies | Powder or pellets for filtration |
| Ammonium Bromide | NH₄Br | Artcraft / Bostick & Sullivan | Photo halide |
| Ammonium Chloride | NH₄Cl | Artcraft / Bostick & Sullivan / hardware | Photo / lab |
| Ammonium Citrate (Dibasic) | (NH₄)₂C₆H₆O₇ | Artcraft / Bostick & Sullivan | Photo / clearing |
| Ammonium Dichromate | (NH₄)₂Cr₂O₇ | Artcraft / Bostick & Sullivan | Gum bichromate sensitizer |
| Ammonium Ferric Oxalate | — | Bostick & Sullivan | Platinum/palladium / cyanotype |
| Ammonium Iodide | NH₄I | Artcraft / Bostick & Sullivan | Photo halide |
| Ammonium Thiocyanate | NH₄SCN | Artcraft / Bostick & Sullivan | Photo / toning |
| Ascorbic Acid | C₆H₈O₆ | Vitamin C / Artcraft | Developer / antioxidant |
| Beeswax (White) | — | Bostick & Sullivan | Coating / protection |
| Boric Acid | H₃BO₃ | Bostick & Sullivan | Buffer |
| Cadmium Bromide | CdBr₂ | Bostick & Sullivan | Specialized photo |
| Calcium Carbonate | CaCO₃ | Chalk, antacids, pool pH up, Seattle Pottery Supply | Grocery / pool / ceramics |
| Calcium Chloride | CaCl₂ | De-icer pellets, desiccant packs | Hardware |
| Catechol (Pyrocatechin) | C₆H₆O₂ | Artcraft | Photo developer |
| Cesium Chloride | CsCl | Bostick & Sullivan | Platinum/palladium process |
| Cesium Palladium Solution #3 | — | Bostick & Sullivan | Specialized palladium |
| Citric Acid | C₆H₈O₇ | Grocery / Artcraft / Bostick & Sullivan | Food or photo grade |
| Clove Oil (Eugenol) | C₁₀H₁₂O₂ | Essential oils / pharmacy | Eugenol source |
| Collodion (Plain / DGX+) | — | Artcraft / Bostick & Sullivan | Wet plate |
| Copper Sulfate | CuSO₄ | Root/stump remover, pool algaecide | Hardware / pool |
| Cream of Tartar | KHC₄H₄O₆ | Grocery baking aisle | Tartaric acid source |
| DGX+ Bromo-Iodizer | — | Bostick & Sullivan | Wet plate sensitizer |
| EDTA (Tetra Sodium) | Na₄EDTA | Bostick & Sullivan | Clearing agent |
| Ethanol | C₂H₅OH / C₂H₆O | Vodka (high-proof), everclear | 40%+ |
| Ethyl Acetate | C₄H₈O₂ | Nail polish remover | Solvent |
| Ferric Ammonium Citrate | (NH₄)₅[Fe(C₆H₄O₇)₂] | Artcraft / Bostick & Sullivan | Cyanotype sensitizer |
| Ferric Oxalate | Fe₂(C₂O₄)₃ | Artcraft / Bostick & Sullivan | Platinum/palladium core chemical |
| Ferrous Sulfate | FeSO₄·7H₂O | Artcraft | Reducing agent |
| Formaldehyde | HCHO / CH₂O | Formalin, septic treatments | With methanol stabilizer |
| Glycerin (Glycerol) | C₃H₈O₃ | Pharmacy | USP grade |
| Gold Chloride | HAuCl₄ | Artcraft / Bostick & Sullivan (multiple %) | Toning / alt-process |
| Hydroquinone | C₆H₆O₂ | Artcraft | Photo developer |
| Hydrogen Peroxide | H₂O₂ | Pharmacy / beauty supply | 3-12% |
| Hydrochloric Acid | HCl | Transchem Muriatic Acid | ~20-32% |
| Iron Oxide (Red / Black) | Fe₂O₃ / Fe₃O₄ | Seattle Pottery Supply, hardware pigments | Mars red pigment, ceramics, magnetic |
| Isopropyl Alcohol | C₃H₈O | Rubbing alcohol | 70-99% |
| Lithium Chloride | LiCl | Bostick & Sullivan | Platinum/palladium |
| Lithium Ferric Oxalate | — | Bostick & Sullivan | Specialized |
| Lithium Palladium Solution #3 | — | Bostick & Sullivan | Specialized |
| Magnesium Sulfate | MgSO₄ | Epsom Salt | Bath / laxative |
| Methanol | CH₃OH / CH₄O | Heet (yellow bottle) | Nearly pure |
| Metol | C₇H₉NO | Artcraft | Photo developer |
| Oxalic Acid | (COOH)₂ | Bostick & Sullivan | Platinum/palladium process |
| Palladium (II) Chloride | PdCl₂ | Artcraft / Bostick & Sullivan | Platinum-palladium process |
| Phenidone | C₉H₁₀N₂O | Artcraft | Photo developer |
| Platinum Solution #3 | — | Bostick & Sullivan | Platinum process |
| Potassium Bromide | KBr | Artcraft / Bostick & Sullivan | Photo restrainer |
| Potassium Carbonate | K₂CO₃ | Artcraft / Bostick & Sullivan | Developer component |
| Potassium Ferricyanide | K₃[Fe(CN)₆] | Artcraft / Bostick & Sullivan | Cyanotype / bleach |
| Potassium Iodide | KI | Artcraft / OTC supplements / Bostick & Sullivan | Pharmacy / photo |
| Potassium Permanganate | KMnO₄ | Water treatment / aquarium | Crystals |
| Potassium Tetrachloroplatinate | K₂PtCl₄ | Artcraft / Bostick & Sullivan | Platinum process |
| Pyrogallic Acid | C₆H₃(OH)₃ | Artcraft | Photo developer |
| Red Phosphorus | P (red) | Super Bang Ring Caps | Extract from caps |
| Silver Nitrate | AgNO₃ | Artcraft (ACS) / Bostick & Sullivan | High-purity alt-process |
| Sodium Acetate | CH₃COONa | Bostick & Sullivan | Buffer |
| Sodium Bicarbonate | NaHCO₃ | Baking Soda (Arm & Hammer) | Grocery |
| Sodium Bisulfite | NaHSO₃ | Pool / winemaking / Bostick & Sullivan | Sanitation / clearing |
| Sodium Bromide | NaBr | Pool algaecides (Yellow Treat²) | Pool supply |
| Sodium Carbonate | Na₂CO₃ | Washing Soda / pool pH Up / Artcraft / Bostick & Sullivan | Grocery / pool / photo |
| Sodium Chloride | NaCl | Morton Salt / Kosher salt | Grocery (kosher purer) |
| Sodium Formate | HCOONa | Bostick & Sullivan | Platinum/palladium |
| Sodium Hydroxide | NaOH | Red Crown Lye / Artcraft | ~90-100% |
| Sodium Hypochlorite | NaOCl | Household Bleach (Clorox) | 5-10% |
| Sodium Phosphate (TSP) | Na₃PO₄ | Hardware cleaners | Reacts with HCl → H₃PO₄ + NaCl |
| Sodium Sulfite | Na₂SO₃ | Artcraft / Bostick & Sullivan | Photo preservative |
| Sodium Thiosulfate | Na₂S₂O₃·5H₂O | Artcraft / Bostick & Sullivan | Photo fixer |
| Sulfuric Acid | H₂SO₄ | Rooto Professional Drain Opener | ~93% |
| Tannic Acid | — | Bostick & Sullivan | Cyanotype toning |
| Tetrahydrofuran (THF) | C₄H₈O | PVC pipe cements | Specialty hardware |
| Toluene | C₇H₈ | Klean Strip Toluene | Paint thinner |
| Tween 20 | — | Bostick & Sullivan | Surfactant / wetting agent |
| Water (Distilled) | H₂O | Grocery / pharmacy | Pure |