Phosphoric Acid CAS 7664-38-2

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

Deshangchemical Info

Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.