Pesticide Intermediates Phosphorous Acid For The Production Of Fungicides 13598-36-2
Properties: Colorless and easily deliquescent crystals. Garlic.
Density (g/mL, 25/4℃): 1.651
Melting point (oC): 73.6
Boiling point (oC, normal pressure): 200
Auto-ignition point or ignition temperature (oC): not applicable
Solubility: easily soluble in water and alcohol.
|water absorption||strong hygroscopicity|
|Solubility||easily soluble in water|
|Corrosive||easily soluble in water|
|application||It is widely used as a raw material for the manufacture of phosphites, as a raw material for the manufacture of plastic stabilizers in the plastics industry, as a reducing agent in chemical reactions, and also in the synthetic fiber and pesticide industries.|
1. Stable under normal temperature and pressure
2. Materials to avoid Air Moisture/moisture crystals with garlic smell. Soluble in water and alcohol. Corrosive and can cause burns. Irritating to skin. Soluble in water and alcohol. It is slowly oxidized into orthophosphoric acid in the air, and decomposed into orthophosphoric acid and phosphine (highly toxic) when heated to 180 °C. Phosphorous acid is a dibasic acid, and its acidity is slightly stronger than that of phosphoric acid. It has strong reducibility and can easily reduce Ag ions to metallic silver, and can reduce sulfuric acid to sulfur dioxide. It has strong hygroscopicity and deliquescence, and is corrosive. Can cause burns. Irritating to skin. It is deliquescence when placed in the air and easily soluble in water. Decomposes above 160℃ to generate H3PO4 and PH3
R22 - Harmful if swallowed.
R35 - Causes severe burns.
S26 - After accidental contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39 - Wear appropriate protective clothing, gloves and goggles or mask.
S45 - In case of accident or feeling unwell, seek immediate medical attention (show its label if possible).
1. As an analytical reagent, such as a reducing agent, it can be used to measure mercury, gold, silver, lead, iodic acid, etc.
2. It is used to prepare phosphite, stabilizer of polycarbonate and antioxidant of nylon-1010.
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