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
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