Product List
Phosphorous acid
As a reducing agent, nylon brightener, is also used as material of phosphorous acid salt, pesticide intermediates and material of organic phosphorus water treatment agent.
61102 Quality Standard： HG/T 2520-93
CAS No： 13598-36-2
Molecular Formula：H3PO3
Molecular Weight：82.00
Structural Formula：Phosphorous acid Structural formula
Properties：Colourless Crystal
Relative Density：1.651 (21.2℃)
Melting Point：73.6℃
Boiling Point (℃)：200℃ (decompound)
Solubility：Soluble in water and alcohol, slowly oxidized to orthophosphate in air, when heated to 180℃ decomposition into orthophosphate and phosphine (highly toxic, explosive). Phosphite is a dielemental acid, its acid is slightly stronger than phosphoric acid, it has a strong reduction, easy to reduce Ag2+ into metal silver, sulfuric acid can be reduced to sulfur dioxide. With strong hygroscopicity and deliquescence, corrosive.
Uses：As a reducing agent, nylon brightener, is also used as material of phosphorous acid salt, pesticide intermediates and material of organic phosphorus water treatment agent.
Packing & storage：Export Packing is plywood drums, lined with two layers of polyethylene plastic bag, net weight 50kg. Packing should be clearly marked with sign of "corrosive substance". It is second grade inorganic acidic corrosive materials, IMDG code: 93014. Should be kept in a cool, ventilated, dry coffers. Avoid moisture and reverse. No mix with toxic matter, H foam agent and other corrosive substances. Avoid rain and insolation; can not be placed in the deck during maritime transport. Handling gently, do not scroll and inverted to prevent Packing from damage. If fire, fighting with sand and dry powder fire extinguisher.
