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Chemical Sampling Information
Tetrasodium Pyrophosphate
 Field Definitions
 Analytical Methods
 Health Guidelines
General Description

NAME: Tetrasodium Pyrophosphate

SYNONYM(s): Tetrasodium Salt Pyrophosphoric Acid; TSPP; Victor TSPP; Anhydrous Tetrasodium Pyrophosphate; Phosphotex; Pyrophosphate; Sodium Pyrophosphate; Tetranatriumpyrophosphat; TSPP

IMIS: T102

CAS: 7722-88-5

NIOSH: RTECS UX7350000; 73354

DESCRIPTION:

Colorless, transparent crystals or white powder;
MW: 265.90

Exposure Limits

ACGIH TLV: 5 mg/m3 TWA (Anhydride and Decahydrate)

NIOSH REL: 5 mg/m3 TWA

Health Factors

Monitoring

PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):



MEDIA: Low Ash Polyvinyl Chloride (LAPVC) filter 5 microns
MAX V: 960 Liters   MAX F: 2.0 L/min
ANL 1: Gravimetric
REF: 11, 12
SAE: 0.10
CLASS: Fully Validated
ANL A: Atomic Absorption Spectrometry; AAS
REF: 2 (OSHA ID-121)
CLASS: Fully Validated
ANL A: Ion Chromatography; IC
REF: 2 (OSHA ID-111) CLASS Partially Validated
NOTE: The two most important crystalline sodium polyphosphates are the pyrophosphate (n2) and the tripolyphosphate, also called the triphosphate (n3) (NaN+2Pn03n+1). Submit as a separate sample. An analysis is performed for total Na and PO4-3 and reported as the compound.

WIPE:

MEDIA: Whatman smear tab; Solvent: Deionized water


Revision Date: 01/15/1993
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