Chemicals in danger of exploding in combination (A + B)


Chemical A

Chemical B

Chemical A

Chemical B

Alkali metals, powdered aluminum or magnesium and other substances

Carbon tetrachloride and other carbon chlorides, carbon disulphide and halogen

Hydrogen peroxide

Copper, chromium, iron, many other metals or their salts, alcohol, acetone, organic substances, aniline, combustible materials, inflammable liquid, nitromethane

Metal potassium or sodium

Carbon tetrachloride, carbon dioxide, water



Mercury(e.g. mercury in manometer)

chlorine, calcium hypochloride,  iodine, bromine, anhydrous hydrofluoric acid, silver compounds


Acetylene, hydrogen peroxide

Chromic acid

Acetic acid, naphthalene, camphor, glycerin, turpentine oil, alcohols, oxidizable substances


Acetylene, oxalic acid, tartaric acid, fulminic acid, ammonium compounds

Anhydrous hydrofluoric acid

ammonia (aqueous or anhydrous)


Acetylene, oxalic acid, fulminic acid, ammonia

Nitric acid (concentrated)

Acetic acid, aniline, chromic acid, cyanic acid, hydrogen sulphide, inflammable liquid, inflammable gas


Ammonia, acetylene, butadiene, butane, methane, propane, other kerosene gases, hydrogen, sodium, carbide, turpentine oil, benzene, finely ground metal

Sulphuric acid

Potassium chlorate, potassium perchlorate, potassium permanganate (or permanganate of light metals such as sodium and lithium)


Same as the case of chlorine

Hydrocarbon (butane, propane, benzene, gasoline, turpentine oil and others)

Fluorine, bromine, chromic acid, sodium peroxide


Acetylene, ammonia (aqueous or anhydrous), hydrogen


Chlorine, bromine, copper, fluorine, silver, mercury


Reaction rate is high for all kinds of compounds


Nitric acid, hydrogen peroxide

Chlorine dioxide

ammonia, methane, phosphine, hydrogen sulphide

Oxalic acid

Silver, mercury


Ammonium salts, various kinds of acids, powdered metal, sulphur, finely ground organic substances or combustible materials

Cumene hydroperoxide

Various kinds of acids (organic or inorganic)


Acetic anhydride, bismuth and its alloys, alcohol, paper, wood

Inflammable liquid

Ammonium nitrate, chromic acid, hydrogen peroxide, nitric acid, sodium peroxide and halogen

Potassium permanganate

Ethanol or methanol, glacial acetic acid, acetic anhydride, benzaldehyde, carbon disulphide, glycerin, ethylene glycol, ethyl acetate, methyl acetate, furfural

Sodium azide

Acid, lead, copper, mercury, silver


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