Tetrasodium pyrophosphate
Agent Name
Tetrasodium pyrophosphate
CAS Number
7722-88-5
Formula
H4-O7-P2.4Na
Major Category
Other Classes
Synonyms
Anhydrous tetrasodium pyrophosphate; Diphosphoric acid, tetrasodium salt; Natrium pyrophosphat [German]; Phosphotex; Pyrophosphoric acid tetrasodium salt; Sodium diphosphate (Na4P2O7); Sodium diphosphate, anhydrous; Sodium phosphate (Na4P2O7); Sodium pyrophosphate (Na4P2O7); Sodium pyrophosphate, tetrabasic; TSPP; Tetranatriumpyrophosphat [German]; Tetrasodium diphosphate; Tetrasodium pyrophosphate; Tetrasodium pyrophosphate, anhydrous; Victor TSPP; [ChemIDplus]
Category
Salts, Basic
Description
Odorless, white powder or granules. [Note: The decahydrate (Na4P2O7+10H2O) is in the form of colorless, transparent crystals.]; [NIOSH]
Sources/Uses
Used as a water softener, detergent, emulsifying agent, metal cleaner, and nutritional supplement; [ACGIH]
Comments
Documentation and TLV withdrawn in 2006 because of insufficient data; [ACGIH] A skin, eye, and respiratory tract irritant; [ICSC]
Biomedical References
Exposure Assessment
Explanatory Notes
Adopted Documentation and TLVs were withdrawn in 2006 due to insufficient data. [ACGIH]
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: