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ThaiProduct Introduction:
Phosphorous Acid (H₃PO₃), also known as phosphonic acid, is a white crystalline solid or powder known for its strong reducing and chelating properties. With the molecular formula H₃PO₃ and molecular weight of 82.00 g/mol, it serves as a key intermediate in the production of phosphonates, fungicides, and water treatment agents.
At Jiangsu Khonor Chemicals Co., Limited, we provide high purity Phosphorous Acid for use in agriculture, industry, and specialty chemical manufacturing. Our products meet international quality standards and are exported to over 30 countries worldwide.
Product Specifications:
| Parameter | Specification |
|---|---|
| Appearance | White crystalline solid |
| Assay (H₃PO₃) | ≥ 99.0% |
| Chloride (Cl⁻) | ≤ 0.01% |
| Sulfate (SO₄²⁻) | ≤ 0.005% |
| Iron (Fe) | ≤ 0.0005% |
| Heavy Metals (as Pb) | ≤ 10 ppm |
| Solubility in Water | Complete |
| Melting Point | 73–74 °C |
| Packaging | 25 kg plastic-lined woven bag or as required |
CAS No.: 10294-56-1
EINECS No.: 233-663-1
HS Code: 28111990
UN No.: 3261 (for transport purposes)
Applications:
Agriculture:
Phosphorous Acid is widely used in the manufacture of systemic fungicides, such as Fosetyl-Al and phosphonate salts. It improves plant resistance to pathogens and is applied in crops such as grapes, citrus, and vegetables.Industrial Chemicals:
Used as a reducing agent, intermediate for phosphonates, and in electroplating baths, water treatment, and plastic additives.Water Treatment:
Acts as a chelating agent and stabilizer in cooling systems, preventing scale and corrosion.Pharmaceuticals & Specialty Synthesis:
Serves as a raw material for organophosphorus compounds and pharmaceutical intermediates.
Advantages of Our Product:
High purity (≥99%) with low impurities
Stable supply and prompt delivery
Strict QC with ISO-certified manufacturing
Custom packaging & labeling available
Technical support and documentation (COA, MSDS)
Packaging & Storage:
Standard: 25kg plastic-lined woven bags
Jumbo bags or drums available upon request
Store in a dry, well-ventilated area, away from moisture and incompatible materials such as strong oxidizers
Shelf Life:
12 months from the date of manufacture in original sealed packaging
Ordering & Shipping Information:
Minimum Order Quantity: 1 metric ton
Supply Ability: 500 MT/month
Lead Time: 7–10 working days
Export Markets: Europe, South America, Southeast Asia, Middle East, Africa
OEM/Private Label: Supported
