Phosphorous Acid 98.5% CAS No 13598-36-2
Phosphorous Acid (CAS 13598-36-2, Molecular Formula: H₃PO₃) is a key inorganic fine chemical. Appearing as white crystalline powder, it is characterized by strong reducibility and corrosivity. With high purity and excellent water solubility, it serves as a critical intermediate for manufacturing phosphites, pesticide intermediates, and water treatment chemicals, catering to the chemical, agrochemical, electroplating, and materials industries.
CAS:
13598-36-2
Packing:
25kg/bag or 1000kg/bag
Color:
white
Appearance:
crystal
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Phosphorous Acid 98.5% CAS No 13598-36-2
Phosphorous acid is an important type of chemical raw material and an intermediate for pesticides. It can be used as a chemical raw material in the production of reducing agents, nylon antioxidants, plastic stabilizers, water treatment agents, synthetic fibers, phosphites, lithium iron phosphate cathode materials, etc. It can also be used as an intermediate for pesticides in the production of herbicides, fungicides, water stabilizers, organophosphorus pesticides, etc. Its application fields are quite extensive.
Product Details
| Items | Index |
| Main Content (Based on H3PO3) % | ≥98.5 |
| Chloride (Based on Cl) % | ≤0.005 |
| Iron(Fe) PPM | ≤50 |
| Sulfate (Based on SO4) % | ≤0.008 |
| Phosphate (Based on PO4) % | ≤0.2 |
| Appearance | White crystal |
Product superiority
- Superior Chemical Reactivity：Contains phosphorus in the +3 oxidation state, offering strong reducibility and high reaction efficiency, which significantly improves the yield of downstream synthesis.
- High Purity & Low Impurities：Industrial-grade purity reaches 98.5% min with extremely low levels of heavy metals and sulfates, meeting the stringent requirements of high-end fine chemical production.
- Excellent Stability & Solubility：Features good storage stability in sealed conditions and excellent water solubility, allowing for quick preparation of aqueous solutions of various concentrations.
- Cost-Effective Raw Material：Serves as a cost-efficient precursor for the production of various phosphite salts and derivatives.
Application scenarios
- Agrochemical Synthesis：A core intermediate for manufacturing glyphosate and organophosphorus fungicides.
- Fine Chemicals：Used in the production of phosphite salts (e.g., sodium phosphite), plastic stabilizers, and flame retardants.
- Water Treatment：Acts as a high-efficiency oxygen scavenger and corrosion inhibitor for industrial boiler water and circulating cooling systems.
- Electroplating & Electronics：Functions as an additive in electroplating baths for corrosion-resistant coatings and in the synthesis of electronic-grade chemicals.
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