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Environmental Health & Safety
Lab Safety - Example Compatiblity Chart

INCOMPATIBLE CHEMICALS

Chemical        Is incompatible with:

Acetic Acid               Nitric acid, hydroxyl compounds, ethylene glycol, perchloric acid, peroxides, permanganates

Acetylene                Chlorine, bromine, copper, fluorine, silver, mercury

Alkali Metals            Water, carbon tetrachloride or other chlorinated hydrocarbons, carbon dioxide, the halogens

Ammonia, Anhydrous:
Mercury, chlorine, calcium hypochlorite, iodine, bromine, hydrofluoric acid

Ammonium nitrate    Acids, metal powders, flammable liquids, chlorates, nitrites, sulfur, finely divided organic or combustible materials

Aniline                     Nitric acid, hydrogen peroxide

Bromine                   Same as chlorine: ammonia, acetylene, butadiene, butane, methane, propane (or other petroleum gases), hydrogen, sodium carbide, turpentine, benzene, finely divided metals

Butyl lithium             Water

Carbon, activated    Calcium hypochlorite, all oxidizing agents

Chlorates                Ammonium salts, acids, metal powders, sulfur, finely divided organic or combustible materials

Chromic Acid           Naphthalene, camphor, glycerin, turpentine, alcohol, flammable liquids in general

Chlorine                  Same as bromine: ammonia, acetylene, butadiene, butane, methane, propane (or other petroleum gases), hydrogen, sodium carbide, turpentine, benzene, finely divided metals

Chlorine dioxide       Ammonia, methane, phosphine, hydrogen sulfide

Copper                    Acetylene, hydrogen peroxide

Cumene hydroperoxide:
Acids, organic or inorganic

Cyanides (Na, K)      Acids

Flammable liquids    Ammonium nitrate, chromic acid, hydrogen peroxide, nitric acid, sodium peroxide, halogens, other oxidizing agents

Chemical        Is incompatible with:

Fluorine                   All other chemicals

Hydrocarbons          Fluorine, chlorine, bromine, chromic acid, sodium peroxide

Hydrocyanic acid      Nitric acid, alkalis

Hydrofluoric acid      Ammonia, aqueous or anhydrous

Hydrogen peroxide  Copper, chromium, iron, most metals or their salts, alcohols, acetone, organic materials, aniline, nitromethane, flammable liquids, oxidizing gases

Hydrogen sulfide     Fuming nitric acid, oxidizing gases

Iodine                     Acetylene, ammonia (aqueous or anhydrous), hydrogen

Mercury                  Acetylene, fulminic acid, ammonia

Nitric Acid               Acetic acid, aniline, chromic acid, hydrocyanic acid, hydrogen sulfide,
flammable liquids, flammable gases

Oxalic acid              Silver, mercury

Perchloric acid         Acetic anhydride, bismuth and its alloys, alcohol, paper, wood, sulfuric acid, organics

Potassium                Carbon tetrachloride, carbon dioxide, water

Potassium permanganate:
Glycerin, ethylene glycol, benzaldehyde, sulfuric acid

Silver                       Acetylene, oxalic acid, tartaric acid, ammonium compounds

Sodium                    Carbon tetrachloride, carbon dioxide, water

Sodium peroxide     Ethyl or methyl alcohol, glacial acetic acid, acetic anhydride, benzaldehyde, carbon disulfide, glycerin, ethylene glycol, ethyl acetate, methyl acetate, furfural

Sulfuric acid            Potassium chlorate, potassium perchlorate, potassium permanganate (or compounds with similar light metals, such as sodium, lithium, etc.)

Source – Safety In Academic Chemical Laboratories, American Chemical Society.

Other examples

1) CRC Lab Handbook compatablity chart  

2) EPA compatiblity chart


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