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Fire Control Measures of Phosphorous Acid

  • Author:Kathy
  • Source:www.oceanchinachem.com
  • Release on :2016-07-25



     Phosphorous acid, inorganic compounds, soluble in water and alcohol. Slow oxidation into orthophosphoric acid in the air, heated to 180 ℃ when broken down into orthophosphoric acid and phosphine (highly toxic, explosive). Phosphite as dibasic acid, the acidity slightly stronger than phosphate, it has the strong reducibility, easy to silver ions (Ag +) back into metallic silver (Ag), sulfate reduction into sulfur dioxide. Has strong moisture absorption and deliquescence, corrosive. Phosphorous acid is mainly used as a reductant, nylon whitening agent, also used as the raw material for phosphate and organic phosphorus pesticide intermediates, as well as water treatment agent of raw materials.

Dangerous characteristic: corrosive. Phosphorus of oxidation thermal decomposition to produce poisonous gas. 

Hazardous combustion products: phosphorus alkanes, oxidation of phosphorus. 

Fire extinguishing methods: keep a fire containers with fog water cooling. With plenty of water fire extinguishing. 

Emergency treatment: the isolation leakage pollution area, restricted movement. Recommended emergency personnel wear dust mask (comprehensive cover), wear resistant acid and alkali overalls. Don't direct contact with the leakage. A small leak: use clean shovel collection in a dry, clean, covered container. Can also use a lot of water to rinse, wash water diluted into the wastewater system. Collecting leak: recycling or shipped to the disposal of waste places.


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