Phosphorous Acid

ItemsSpecificationsCAS13598-36-2chemical formulaH3O3P

molecular weight82density1.651g/mLat 25°C(lit.)melting point73 °Cboiling point200 °C

flash(ing) point200°C

water solubilitySOLUBLEvapour pressure0.001Pa at 20℃acidity coefficientpK1 1.29; pK2 6.74(at 25℃)storage condition0-6°CstabilityStable. Incompatible with strong bases. Hygroscopic.sensibilityAir Sensitive & Hygroscopic

appearanceCrystals

proportion1.651colourWhitephysico-chemical propertyAchromatic crystals. Soluble in water and alcohol.product useIt is a raw material for the manufacture of phosphite, as well as for the manufacture of plastic stabilizers (such as lead disalt phosphate) and organophosphorus pesticide.but also in the manufacture of synthetic fibers and phosphite.s. Used as a stabilizer for polycarbonate. Also used as an antioxidant in nylon 1010.securityBelongs to the second class inorganic acid corrosion articles, danger code number: GB 8.1 Class 81520. UNN0.2854; IMDG CODE 8205 page, Class 8.1. Store in a cool, ventilated and dry storeroom. The package is sealed. It is strictly prohibited to put it upside down under moisture. It is not allowed to be stored and transported together with alkali, toxic, H porous agent and other corrosion-prone articles. Transportation should be rain and sun protection; Marine transport cannot be placed on deck. Handle with care during loading and unloading. Do not roll or turn upside down to prevent packing damage. Three plywood drums for export packing, lined with two layers of polyethylene plastic bags, each net weight 50kg. Polyethylene plastic drum for domestic packaging, net weight of 30kg per barrel. Or iron drums lined with two layers of polyethylene plastic bags, each net weight 25kg. The packaging should be clearly marked "corrosive goods". Fire, available sand, dry powder out

Firearm rescue. Toxicity and protection: see industrial phosphoric acid.