Appearance: White Crystals
Application: Phosphorous acid is used to produce the fertilizer phosphate salt like potassium phosphite, ammonium phosphite and calcium phosphite. It is actively involved in the preparation of phosphites like aminotris(methylenephosphonic acid) (ATMP), 1-hydroxyethane 1,1-diphosphonic acid (HEDP) and 2-phosphonobutane-1,2,4-tricarboxylic Acid (PBTC), which find application in water treatment as a scale or corrosive inhibitor. It is also used in chemical reactions as a reducing agent. Its salt, lead phosphite is used as PVC stabilizer.
Item Specifications
| Phosphorous Acid（%） | ≥98 |
| Iron（%） | ≤0.005 |
| Phosphate（%） | ≤0.60 |
| Sulphate（%） | ≤0.01 |
| Chloride（%） | ≤0.02 |
Packaging: 25kg /bag
Storage: It should be placed in ventilation low-temperature drying.
