Phosphoric Acid CAS 7664-38-2 Information
| CAS |
7664-38-2 |
| Molecular formula |
H3O4P |
| Molecular weight |
98 |
| EIENCS |
231-633-2 |
| Form |
Solid or Viscous Liquid |
| Melting point |
~40 °C(lit.) |
| boling point |
158 °C(lit.) |
| Density |
1.685 g/mL at 25 °C(lit.) |
| Solubility |
H2O: soluble |
| PKA |
2.1-7.2-12.3(at 25℃) |
| Color |
≤10(APHA) |
| Storage temp |
|
What is Phosphoric Acid CAS 7664-38-2?
Phosphoric acid (CAS 7664-38-2) is a multifunctional strong acid, and its core value lies in:
Industrial foundation: Spanning three major fields including water treatment, metal processing, and chemical synthesis, especially phosphating treatment and polishing liquid are irreplaceable.
Food-grade safety: High-purity products (≥99%) meet the food additive standards (FEMA 2900);
High operational risk: Strong corrosiveness and heat sensitivity require strict protection. Store at low temperature to prevent crystallization.
Phosphoric Acid CAS 7664-38-2 Use
industrial field
Water treatment: Raw materials for water softeners, scale cleaners and phosphorus-based water treatment agents.
Metal processing: Phosphating treatment of metal surfaces, components of electrolytic polishing solutions for aluminum products.
Chemical raw materials: Production of phosphates (such as sodium tripolyphosphate, sodium hexametaphosphate), flame retardants and polymer materials.
Food industry
Acidulants and nutrients: Used in cola beverages, candies, and canned foods to regulate acidity and provide yeast nutrition.
Clarifying agent: Removes impurities in the sugar industry.
Medicine and daily chemicals
Pharmaceutical intermediates: Synthesis of drugs such as iron phosphate and zinc phosphate.
Daily chemical products: detergent additives, components of matchstick stain solution.
Agriculture
Fertilizer production: Manufacturing ammonium phosphate, potassium dihydrogen phosphate and other phosphate fertilizers.
Phosphoric Acid CAS 7664-38-2 safety
Toxicity: Moderate toxicity (Oral LD₅₀ in rats: 1530 mg/kg); Strong corrosiveness (Burns in contact with skin/eyes)
Hazard Signs: R34 (Causes burns), R22 (Harmful if swallowed)
Operation protection: Wear anti-corrosion gloves and goggles, and operate in a fume hood
Storage conditions: Keep sealed, away from light, in a cool and dry place (<30℃); Keep away from strong oxidants and metal powders
Environmental friendliness: Toxic to aquatic organisms (WGK Level 3), and the wastewater needs to be neutralized
