Phosphorous Acid (CAS No. 13598-36-2), also known as Phosphonic Acid, is a white crystalline inorganic acid widely used in the agricultural, chemical, and industrial sectors. It is primarily utilized as an intermediate in the production of phosphite salts, agrochemicals, and corrosion inhibitors. Phosphorous Acid is extensively applied in agriculture as a fungicide and plant protection agent due to its ability to enhance plant immunity and control fungal diseases. It is also used in water treatment, polymer stabilization, and specialty chemical synthesis. Known for its strong reducing properties, high purity, and effectiveness, Phosphorous Acid is an important raw material in agrochemical and industrial applications worldwide.
Phosphoric Acid (CAS No. 7664-38-2) is a clear, colorless, and odorless inorganic acid widely used across the agricultural, food, pharmaceutical, and industrial sectors. It is a key raw material in the production of phosphate fertilizers, detergents, water treatment chemicals, and metal surface treatment formulations. Phosphoric Acid is also extensively utilized in the food industry as an acidulant and pH regulator in beverages and processed foods, and in pharmaceuticals as a buffering and stabilizing agent. In industrial applications, it is used for rust removal, metal cleaning, and chemical synthesis processes. Known for its high purity, stability, and versatility, Phosphoric Acid is an essential chemical in global manufacturing and processing industries.
Ortho Phosphoric Acid (CAS No. 7664-38-2), also known as Phosphoric Acid, is a clear, colorless, and odorless inorganic acid widely used across the food, pharmaceutical, agricultural, and industrial sectors. It is primarily utilized in the production of fertilizers, detergents, water treatment chemicals, and metal surface treatment solutions. Ortho Phosphoric Acid is also extensively used in the food industry as an acidulant and pH regulator in beverages and processed foods. In pharmaceuticals and cosmetics, it serves as a buffering agent and stabilizer. Additionally, it is used for rust removal, metal cleaning, and industrial chemical synthesis. Known for its high purity, stability, and wide applicability, Ortho Phosphoric Acid is an essential chemical in global manufacturing and processing industries.
Phosphoric Acid is a clear, colorless inorganic acid widely used as an essential raw material across fertilizer manufacturing, food processing, chemical production, metal treatment, and industrial applications. Available in different grades including technical grade, food grade, and agricultural grade, high-quality phosphoric acid is manufactured under controlled conditions to ensure purity, consistency, and reliable performance.
Appearance : Clear, Colorless Liquid
Concentration : 75% - 85% (Common Commercial Grade)
Purity : High Purity Industrial Grade
Density : Approx. 1.57 - 1.88 g/cm (depending on concentration)
Solubility : Completely Miscible with Water
Odor : Odorless
Grade Availability : Technical Grade / Food Grade / Fertilizer Grade
Shelf Life : 12 - 24 months under proper storage
Applications : Fertilizers, Food Additives, Chemicals, Metal Treatment
Colour : Lightly Colour
Colority <= 20 9; H3PO4w% >= 85%-85.06%
Chloride <= 0.0005% - 0.0003%
Fluorine <= 0.0010%-0.00083%
Arsenic <=0.00005%-0.00004%
Heavy Metal as Pb <= 0.0005% - 0.00028%
H3PO3 <=0.0120%-0.0096%.
CAS 13598-36-2 Phosphorous Acid H3PO3 Chemical Additives Agrochemical Intermediates Food Industrial Grade
Basic Information
Model Number : HM03003
Other Names : PA ; PPA ;Phosphonic Acid ; Hydrogen Phosphonate
Molecular Formula : H3PO3
Molecular Weight : 82.00
CAS NO. : 13598-36-2
EINECS NO. : 237-066-7
Standard : HG/T2520-2006
Purity : 99% min.
Applications
In the plastic industry , it is mainly used as a reducing agent , nylon whitening agent , plasticizer , synthetic fiber , etc .
It is also used in the production of herbicides , fungicides and water stabilizers in the organophosphorus pesticide industry .
It is also used to produce ATMP , a high-performance water treatment agent .
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Phosphoric acid,chemical formula H3PO4,is a common inorganic acid, is a medium strong acid. It can be obtained by dissolving phosphorus pentoxide in hot water. Orthophosphoric acid industry is obtained by treating apatite with sulfuric acid. Phosphoric acid is easily deliquescent in the air. Heating will lose water to get pyrophosphoric acid, and further lose water to get metaphosphoric acid. Phosphoric acid is mainly used in pharmaceutical, food, fertilizer and other industries, including as rust inhibitor, food additive, dental and orthopedics, EDIC corrosive, electrolyte, flux, dispersant, industrial corrosive, fertilizer raw material and component household cleaning products. It can also be used as a chemical reagent. Phosphate is a nutrient for all life forms.
Price: DEPEND ON QUANTITY
Specification: 85% Food or Industrial grade
Brand Name : Chemcohealth
Place Of Origin : China
Moq : 1 FCL
Product Appearance : Colorless tansparent liquid
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.
Agriculture: phosphoric acid is the raw material for the production of important phosphate fertilizer (calcium superphosphate, potassium dihydrogen phosphate, etc.), and also for the production of feed nutrients (calcium dihydrogen phosphate).
Industry: phosphoric acid is an important chemical raw material. Its main functions are as follows:
The metal surface is treated to form insoluble phosphate film on the metal surface to protect the metal from corrosion.
Mixed with nitric acid as a chemical polish to improve the finish of the metal surface.
Production of washing supplies, pesticides raw materials phosphate ester.
Production of phosphorus flame retardant raw materials
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Phosphoric acid, ortho phosphoric acid, is a mineral compound with the chemical formula H 3 PO 4 . Ortho Phosphoric Acid refers to the name Iopac Phosphoric Acid. Ortho-phosphoric acid is a colorless, odorless, non-volatile 85% aqueous solution and, although weak in acid, is corrosive enough.
It is a non-toxic substance.
The solution is colorless and odorless.
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Phosphoric acid is used in a variety of applications including: sugar refining processes, wastewater treatment systems, anodizing processes, pre-metal treatments. Phosphoric Acid can be used in many blends for manufacturing activated carbons, soaps, and detergents. Phosphoric Acid gives a biting and harsh taste which helps the cola flavours in carbonated beverages. Phosphoric Acid uses as a degumming agent in sugar and edible oil refinery. To produce cheese, it reacts as an acidulant for emulsifying salts and baking powders. We can supply phosphoric acid globally, adhereing to standards of quality.
Phosphoric acid is a mineral acid having the chemical formula H3PO4. Orthophosphoric acid refers to phosphoric acid, which is the IUPAC name for this compound.
