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Phosphorous acid

CAT: 1139-13598-36-2-01Size: 25 KgDry Ice: NoHazardous: No
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CAT#:1139-13598-36-2-01Size:25 Kg
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Description
Phosphorous acid (CAS: 13598-36-2) is an inorganic dibasic acid with a phosphorus oxidation state of +3. It is a deliquescent crystalline solid that exhibits both acidic and reducing properties, easily oxidizing to phosphoric acid in the presence of air or oxidants. Phosphorous acid (CAS: 13598-36-2) is a versatile industrial chemical widely used in fine chemical, pharmaceutical, agricultural and material fields due to its unique chemical reactivity and stability.
Synonyms
Phosphonic acid, Orthophosphorous acid, Phosphorous (III) acid, Trihydroxyphosphine oxide, Phosphorous acid
HS Code
2811199090
Applications
1. Fine Chemical Intermediate: Phosphorous acid (CAS: 13598-36-2) is used in the synthesis of phosphite esters, which serve as antioxidants, stabilizers and plasticizers in polymers and lubricants. 2. Agrochemical Production: Applied in the manufacture of organophosphorus pesticides, including insecticides and fungicides, leveraging its phosphonate group to enhance pesticide efficacy and stability. 3. Pharmaceutical Intermediate: Serves as a raw material for synthesizing pharmaceutical intermediates, particularly in the production of drugs for treating viral infections and neurological disorders. 4. Metal Surface Treatment: Used as a corrosion inhibitor and chelating agent in metal plating and surface treatment processes, forming a protective film on metal surfaces to prevent oxidation. 5. Water Treatment: Incorporated into water treatment formulations as a reducing agent and scale inhibitor, effectively removing heavy metal ions and preventing scale formation in industrial pipelines.
Purity
≥98.0% (industrial grade) ; ≥99.0% (high-purity grade)
Storage Conditions
Store in a cool, dry and well-ventilated place; keep sealed to prevent deliquescence and oxidation; avoid contact with strong oxidants, bases and metals
Appearance
White crystalline solid; deliquescent, highly soluble in water, ethanol and glycerol

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