Cas no.:13598-36-2
Appearance: white solid deliquescent
Density:1.651 kg/l
Melting point:74?
Boiling point::200?
Chemical formula: h3po3
Industry and agriculture
The most important use of phosphorous acid (phosphonic acid) is the production of phosphites (phosphonates) which are used in water treatment. Phosphorous acid is also used for preparing phosphite salts, such as potassium phosphite. These salts, as well as aqueous solutions of pure phosphorous acid, are fungicides. Phosphites have shown effectiveness in controlling a variety of plant diseases, in particular, treatment using either trunk injection or foliar containing phosphorous acid salts is indicated in response to infections by phytophthora and pythium-type plant pathogens (both within class oomycetes, known as water molds), such as dieback/root rot and downy mildew.[7] anti-microbial products containing salts of phosphorous acid are marketed in australia as 'yates anti-rot'; and in the united states of america, for example, aluminum salts of the monoethyl ester of phosphorous acid (known generically as 'fosetyl-al') are sold under the trade name 'aliette'. Phosphorous acid and its salts, unlike phosphoric acid, are somewhat toxic and should be handled carefully
As a chemical reagent
Phosphorous acid is used in chemical reactions as a reducing agent that is somewhat less vigorous than the related hypophosphorous acid
-
Phosphoric Acid
Phosphorous Acid is primarily used as a chemical intermediate in the production of various phosphorus compounds, particularly as a key component in the manufacturing of PVC stabilizers like basic lead phosphite, and also serves as a strong reducing agent in organic synthesis; its applications include the production of synthetic fibers, organophosphorus pesticides, and highly efficient water treatment agents like ATMP (aminotrimethylene phosphonic acid). Specifications MAIN CONTENT (BASED ON H3PO3) %: â?¥98.5 CHLORIDE (BASED ON CL) % :â?¤0.005 IRON(FE) PPM: â?¤50 SULFATE (BASED ON SO4) %: â?¤0.008 PHOSPHATE (BASED ON PO4) %: â?¤0.2 APPEARANCE :WHITE CYRSTAL Packing 2204.6 lb super sack DOT Transportation UN No.: 2834 Proper Shipping Name: Phosphorous Acid Hazard Class: 8 Packing Group: III
Flavoring Agent Sagent in tins, liquid or solid beverage and cold drink,substitute of citric acid and AS A DISPERSING AGENT IN DETERGENTS AND LEATHER TREATMENT PHOSPHORIC ACID MAY BE USED TO REMOVE RUST BY DIRECT APPLICATION TO RUSTED IRON, STEEL TOOLS, OR OTHER SURFACES.
Phosphoric Acid Food Grade is used as an ingredient in foods and beverages. Phosphoric Acid is typically used for pH control in the food industry, for example in the manufacture of cheese products, fats, and shortenings. It is also used in the beverage industry in soft drinks, particularly cola. Itâ??s used for ph control in manufacture of imitation jellies, as a nutrient in production of yeast, to control bacteria growth in selected processed food, as a flocculating agent for clarification of sugar juices after liming process and in the Manufacture of phosphate salts. Phosphoric Acid 75% Food Grade WC Code: 16-009-02 Sales Specification Appearance: Transparent Colorless Sticky Liquid H3PO4: 75% MIN P2O5: 54% MIN Arsenic (AS): 0.0001% MAX H3PO3: 0.012% MAX Sulphate: 0.003% MAX Heavy Metals (PB): 0.0005% MAX Flouride (F): 0.001% MAX Fe: 0.001% MAX Cl: 0.0005% MAX Packing 650.38 LB Drum, 4 drums per pallet 3527.26 LB Tote DOT Transportation UN Number: 1805 Proper Shipping Name: Phosphoric Acid Hazard Class: 8 Packing Group: III
Product Name: Phosphorous acid Other Names: Phosphonic acid; hydrogen phosphonate; phosphorus(+3) trihydride cation trihydroxide; Orthophosphorus; Orthophosphorous acid; Ortho-Phosphorous acid Molecular Formula: H3PO3 UN No.:2834 HS No.: 2811199090 CAS No.: 13598-36-2 EINECS No.:237-066-7 Hazard Class: 8 Purity:98% 99% Appearance: white crystal Physical and Chemical Properties Phosphorous acid (or phosphonic acid (singular)) is the compound described by the formula H3PO3. This acid is diprotic (readily ionizes two protons), not triprotic as might be suggested by this formula. Phosphorous acid is an intermediate in the preparation of other phosphorus compounds. Organic derivatives of phosphorous acid, compounds with the formula RPO3H2, are called phosphonic acids.
Phosphoric acid.
Phosphoric Acid Chemical formula / structure : H3PO4 Description : Ortho Phosphoric Acid is a clear, colourless liquid. Applications : Pre-treatment chemicals for metal surfaces Metal anodising Sugar refining De-gumming of vegetable oils Manufacture of industrial phosphates Aromatic Chemicals Sugar Industries
Product Name:Â Phosphorous acid CAS No.:13598-36-2 EINECS:Â 237-066-7 Molecular Formula:Â H3O3P Molecular Weight:Â 82 Appearance:Â White Crystalline Powder
Phosphoric acid. Buyer to complete caligra's "buyers requirements form" from which an "sco" can be generated. Determined by mode of transport, as per buyer's requirements
Commodity : Phosphoric Acid 85% min (Food Grade) Specification : Apha 20 max. Content ( H3PO4 ) 85% min. Chloride ( Cl- ) 0.0005% max. Sulphate ( SO4 ) 0.008% max. Arsenic ( As ) 0.0001% max. Heavy Metal ( Pb ) 0.001% max. Fluoride ( F ) 0.001% max. Easily Oxidated matter 0.04% max. Packing : In 35kg plastic drums. Application : Used for foodstuff,pharmaceutics and sugar industry. It is used as sour odour agent in food industry. Storage: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away
