化合物详情

CAS7722-88-5

分子式Na4P2O7

分子量265.9 g/mol g/mol

危化品

Physical Description | 995 °C. Density: 2.53 g/cm3. Solubility in water: 3.16 g/100 mL (cold water); 40.26 g/100 mL boiling water. Used as a wool de-fatting agent, in bleaching operations, as a food additive. The related substance tetrasodium pyrophosphate decahydrate (Na4P2O7*10H2O) occurs as colorless transparent crystals. Loses its water when heated to 93.8 °C.

科学粮草官-词典编辑部，修订于：2026-07-06

Toxicity

Symptoms

irritation eyes, skin, nose, throat; dermatitis

Interactions

... Sodium pyrophosphate inhibits both the deposition of calcium salts and the formation of a calcifiable matrix in the aorta of rats treated with large doses of vitamin D.

Target Organs

Eyes, skin, respiratory system

Exposure Routes

inhalation, ingestion, skin and/or eye contact

RAIS Toxicity Values

Oral Subchronic Chronic Reference Dose Reference: PPRTV Current

Human Toxicity Excerpts

Medical reports of acute exposures ... show mild to moderate dermal and ocular responses.

1 or Cancer Risk Level 1E-06

Fraction of Contaminant Absorbed in Gastrointestinal Tract: 1

Hazard Quotient Level 3 or Cancer Risk Level 1E-04

Fraction of Contaminant Absorbed in Gastrointestinal Tract: 1