Acetic Acid (alias of Vinegar acid)

CAS RN: 64-19-7

Reactivities / Incompatibilities

Incompatibilities: carbonates, hydroxides, many oxides, and phosphates.
Cooling is necessary to prevent possible explosion from contact of potassium permanganate (or the calcium or sodium salts) with acetic acid
Liquid acetic acid will attack some forms of plastics, rubber, and coatings.
An explosion occurred during initial heating up of a large volume of glacial acetic acid being treated with chromium trioxide. This was attributed to violent interaction of solid chromium trioxide and liquid acetic acid on a hot, exposed steam coil, and subsequent initiation of an explosive mixture of acetic acid vapor and air. The risk has been obviated by using a solution of dichromate in sulfuric acid as oxidant, in place of chromium trioxide. The sulfuric acid is essential, as the solid dichromate moist with acetic acid, obtained by evaporating an acetic acid solution to near-dryness, will explode.
Potassium hydroxide residue in a catalyst pot reacted violently when acetic acid was added.
Mixing acetic acid and 2-aminoethanol in a closed container caused the temperature and pressure to increase.
Mixing glacial acetic acid and chlorosulfonic acid in a closed container caused the temperature and pressure to increase.
Mixing acetic acid and ethylene diamine in a closed container caused the temperature and pressure to increase.
Mixing glacial acetic acid and ethyleneimine in a closed container caused the temperature and pressure to increase.
A mixture of ammonium nitrate and acetic acid ignites when warmed, especially if concentrated.
In reactions between bromine pentafluoride and acetic acid ... fire and explosions are likely.
The reaction between chlorine trifluoride and acetic acid is very violent, sometimes explosive.
Acetic anhydride was gradually being titrated into a mixture of chromic anhydride and acetic acid in a 20-gallon, glass-lined tank. After 1 1/2 hours of this procedure, the contents of the reactor exploded.
Mixing glacial acetic acid and oleum in a closed container caused the temperature and pressure to increase.
Explosions involving these materials /perchloric acid and acetic acid/ have occurred in electrolytic polishing baths. The violence in some cases approached that of a true high explosive.
Phosphorus isocyanate and ... acetic acid ... react violently.
Several laboratory explosions have occurred using this reaction /phosphorus trichloride and acetic acid/ to form acetyl chloride. Poor heat control probably caused formation of phosphine.
During the production of terephthalic acid, n-xylene is oxidized in the presence of acetic acid. During these processes, detonating mixtures may be produced. Addition of a small amount of water may largely eliminate the risk of explosion.
Mixing sodium hydroxide and glacial acetic acid in a closed container caused the temperature and pressure to increase.
Mixtures of ... /acetic acid, acetic anhydride & perchloric acid/ have varying degrees of sensitivity to shock. Vapors above the heated mixtures are flammable.
Erroneous addition of aqueous acetic acid into a tank of acetic anhydride caused a violent exothermic hydrolysis.
Strong oxidizers (especially chromic acid, sodium peroxide & nitric acid), strong caustics [Note: Corrosive to metals].
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