| Chemical |
Not compatible with |
| Acetic acid |
Chromic acid, nitric acid, hydroxyl compounds, ethylene glycol, perchloric acid, peroxides, permanganates |
| Acetylene |
Chlorine, bromine, copper, fluorine, silver, mercury |
| Alkali & alkaline earth metals |
Water, carbon tetrachloride or other chlorinated, hydrocarbons, carbon dioxide, halogens |
| Ammonia (anhydrous) |
Mercury (in manometers, for example), chlorine, calcium hypochlorite, iodine, bromine, hydrofluoric acid (anhydrous) |
| Ammonium nitrate |
Acids, powdered metals, flammable liquids, chlorates, nitrites, sulfur, finely divided organic or combustible materials |
| Aniline |
Aniline, nitric acid, hydrogen peroxide |
| Arsenic materials |
Any reducing agent |
| Azides |
Acids |
| Bromine |
See Chlorine |
| Calcium oxide |
Water |
| Carbon (activated) |
Calcium hypochlorite, all oxidizing agents |
| Carbon tetrachloride |
Sodium |
| Chromic acid |
Acetic acid, naphthalene, camphor, glycerol, alcohol chromium trioxide flammable liquids in general |
| Chlorine |
Ammonia, acetylene, butadiene, butane, methane, propane(or other petroleum gases), hydrogen, sodium carbide, benzene, finelydivided metals, turpentine |
| Chlorine dioxide |
Ammonia, methane, phosphine, hydrogen sulfide |
| Copper |
Acetylene, hydrogen peroxide |
| Cumene hydroperoxide |
Acids (organic or inorganic) |
| Cyanides |
Acids |
| Flammable liquids |
Ammonium nitrate, chromic acid, hydrogen peroxide, halogens |
| Fluorine |
Everything |
| Hydrocarbons (such as butane, benzene) |
Fluorine, chlorine, bromine, chromic acid , sodium peroxide |
| Hydrocyanic acid |
Nitric acid, alkali |
| Hydrofluoric acid (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 |
Acetic acid, aniline, chromic acid, hydrocyanic acid (concentrated) 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, 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 |
| Potassium |
Carbon tetrachloride, carbon dioxide, water |
| Potassium chlorate |
Sulfuric and other acids |
| Potassium perchlorate |
(see Sulfuric and other acids also chlorates) |
| Potassium permanganate |
Glycerol, ethylene glycol, benzaldehyde, sulfuric acid |
| Selenides |
Reducing agents |
| Silver |
Acetylene, oxalic acid, tartartic acid, ammonium compounds, fulminic acid |
| Sodium |
Carbon tetrachloride, carbon dioxide, water |
| Sodium nitrite |
Ammonium nitrate and other ammonium salts |
| Sodium peroxide |
Ethyl or methyl alcohol, 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 (similar compounds of light metals,such as sodium, lithium) |
| Tellurides |
Reducing agents |
