Additives H3PO3 Chemical Name Phosphorous Acid For The Production Of Fungicides 13598-36-2
Chemical formula: H3PO3
Molecular weight: 82.00
CAS registration number: 13598-36-2
EINECS Accession Number: 237-066-7
Melting point: 73.6 ℃
Boiling point: 200 ℃
Water solubility: easily soluble in water
Density: 1.651 g/cm³
Appearance: white or light yellow crystal, with garlic smell
UN Dangerous Goods Number: UN 2834 8/PG 3
|Product name||phosphoric acid|
Molecular formula: H3PO3
Molecular weight: 82.00
Appearance: colorless crystal
Relative density: 1.651 (water=1)
Melting point: 74℃
Boiling point: 200°C (decomposition)
Water dissolution test: clear and colorless
Physical and chemical properties: strong hygroscopicity and deliquescence, easily soluble in water and alcohol. It is slowly oxidized to orthophosphoric acid in the air. 180 ℃ decomposed into phosphine and orthophosphoric acid. Corrosive.
Production route: mainly by hydrolysis. It is obtained by hydrolyzing phosphorus trichloride (PCl3), refining by steam, cooling and crystallizing to remove hydrochloric acid and decolorizing.
CAS Number: 13598-36-2
Quality standard: chemical industry standard HG/T 2520-93
Toxicity Protection: See Industrial Phosphoric Acid
Packaging, Storage and Transportation: Three plywood drums for export packaging, lined with two layers of polyethylene plastic bags, with a net weight of 50kg per drum. Polyethylene plastic barrels for domestic sales packaging, net weight 30kg per barrel. Or packed in iron drums lined with two layers of polyethylene plastic bags, with a net weight of 25kg per drum. There should be a clear "Corrosive Substance" mark on the package. It is a Class II inorganic acid corrosion product, and the Dangerous Regulation No.: 93014. It should be stored in a cool, ventilated and dry warehouse. The package is sealed, and it is strictly forbidden to put it upside down when wet, and it cannot be stored and transported together with alkali items, toxic items, H pore forming agents and other corrosive items. It should be protected from rain and sunlight during transportation; ocean transportation cannot be placed on the deck. When loading and unloading, handle it with care, do not roll or turn it upside down, to prevent the package from being damaged. In case of fire, sand and dry powder fire extinguishers can be used to put out the fire.
Hazard overview: This product is non-flammable, corrosive and irritating, and white smoke will emerge at room temperature, which may cause burns to the human body.
Health Hazards: This product is irritating to the respiratory tract. Eye contact can cause burns and permanent damage. Skin contact can cause severe burns.
Environmental Hazards: Harmful to the environment and can cause pollution to water bodies.
Explosion Hazard: This product is non-flammable, corrosive, irritating, and can cause burns to the human body.
Hazardous Shipping Code: UN 2834 8/PG 3
Dangerous Goods Sign: Corrosion
Safety logo: S26S45S36/S37/S39
Hazard identification: R22R35 
Flammability characteristics: flammable in case of H pore-forming agent; decomposes toxic phosphorus oxide fumes when heated
Used as phosphite raw material
Raw materials for the manufacture of phosphites
For synthetic fibers
It is a chemical additive
It is a pesticide intermediate
Reduction of silver ions (Ag+) to metallic silver (Ag)
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