Appendix III
Examples of Incompatible Chemicals
Substances in the left hand column should be stored and handled so that they cannot accidentally come into contact with corresponding substances in the right hand column under uncontrolled conditions.
| Chemical | Incompatible with |
|---|---|
| acetic acid | chromic acid, nitric acid, perchloric acid, peroxides, permanganates |
| acetic anhydride | Hydroxyl-containing compounds such as ethylene glycol and perchloric acid |
| acetylene | chlorine, bromine, copper, fluorine, silver, mercury |
| acetone | concentrated nitric and sulfuric acid mixtures |
| alkali and alkaline earth metals | water, carbon tetrachloride or other chlorinated hydrocarbons, carbon dioxide, halogens |
| ammonia (anhydrous) | mercury, chlorine, calcium hypochlorite, iodine, bromine, hydrofluoric acid (anhydrous) |
| ammonium nitrate | acids, powdered metals, flammable liquids, chlorates, nitrates, sulfur, finely divided organic or combustible materials |
| aniline | nitric acid, hydrogen peroxide |
| arsenical materials | any reducing agent |
| azides | acids |
| bromine | see chlorine |
| calcium oxide | water |
| carbon (activated) | calcium hypochlorite, all oxidizing agents |
| carbon tetrachloride | sodium |
| chlorates | ammonium salts, acids, powdered metals, sulfur, finely divided organic or combustible materials |
| chromic acid and chromium trioxide | acetic acid, naphthalene, camphor, glycerol, alcohol, flammable liquids in general |
| chlorine | ammonia, acetylene, butadiene, butane, methane, propane or other petroleum gases, hydrogen, sodium carbide, benzene, finely divided metals, turpentine |
| chlorine dioxide | ammonia, methane, phosphine, hydrogen sulfide |
| copper | acetylene, hydrogen peroxide |
| cumene hydroperoxide | acids (organic and inorganic) |
| cyanides | acids |
| flammable liquids | ammonium nitrate, chromic acid, hydrogen peroxide, nitric acid, sodium peroxide, halogens |
| fluorine | everything |
| hydrazine | hydrogen peroxide, nitric acid, any other oxidant |
| hydrocarbons (e.g., propane, butane, benzene) | fluorine, chlorine, bromine, chromic acid, sodium peroxide |
| hydrocyanic acid | nitric acid, alkali |
| hydrofluoric acid (aqueous or anhydrous) | ammonia (aqueous or anhydrous) |
| hydrogen peroxide | copper, chromium, iron, most metals or their salts, alcohols, acetone, organic materials, aniline, nitromethane, combustible materials |
| hydrogen sulfide | fuming nitric acid, oxidizing gases |
| hypochlorites | acids, activated carbon |
| iodine | acetylene, ammonia (aqueous or anhydrous), hydrogen |
| mercury | acetylene, fulminic acid, ammonia |
| nitrates | sulfuric acid |
| nitric acid (concentrated) | acetic acid, aniline, chromic acid, hydrocyanic acid, hydrogen sulfide, flammable liquids, flammable gases, copper, brass, any heavy metals |
| nitrites | acids |
| nitroparaffins | inorganic bases, amines |
| oxalic acid | silver, mercury |
| oxygen | oils, grease, hydrogen, flammable liquids, solids, or gases |
| perchloric acid | acetic anhydride, bismuth and its alloys, alcohol, paper, wood, grease, oils |
| peroxides, organic | acids (organic or mineral), avoid friction, store cold |
| phosphorus (white) | air, oxygen, alkalis, reducing agents |
| phosphorus pentoxide | alcohols, strong bases, water |
| potassium | carbon tetrachloride, carbon dioxide, water |
| potassium chlorate | sulfuric and other acids |
| potassium perchlorate (also see chlorates) | sulfuric and other acids |
| potassium permanganate | glycerol, ethylene glycol, benzaldehyde, sulfuric acid |
| selenides | reducing agents |
| silver and silver salts | acetylene, oxalic acid, tartaric acid, ammonium compounds, fulminic acid |
| sodium | carbon tetrachloride, carbon dioxide, water |
| sodium nitrite | ammonium nitrate and other ammonium salts |
| sodium peroxide | ethanol and methanol, glacial acetic acid, acetic anhydride, benzaldehyde, carbon disulfide, glycerin, ethylene glycol, ethyl acetate, methyl acetate, furfural |
| sulfides | acids |
| sulfuric acid | potassium chlorate, potassium perchlorate, potassium permanganate (and similar compounds of light metals such as sodium, lithium) |
| tellurides | reducing agents |
