Tetrasodium pyrophosphate |
Synonyms & Trade Names Pyrophosphate, Sodium pyrophosphate, Tetrasodium diphosphate, Tetrasodium pyrophosphate (anhydrous), TSPP |
CAS No. 7722-88-5 |
RTECS No. UX7350000 |
DOT ID & Guide |
FormulaNa4P2O7 |
Conversion |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: TWA 5 mg/m3
OSHA PEL†: none |
Measurement Methods
NIOSH 0500
See: NMAM or OSHA Methods |
Physical Description Odorless, white powder or granules. [Note: The decahydrate (Na4P2O7 ? 10H2O) is in the form of colorless, transparent crystals.] |
MW: 265.9 |
BP: Decomposes |
MLT: 1810°F |
Sol(77°F): 7% |
VP: 0 mmHg (approx) |
IP: NA |
Sp.Gr: 2.45 |
Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Solid |
Incompatibilities & Reactivities Strong acids |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, nose, throat; dermatitis |
Target Organs Eyes, skin, respiratory system |
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Personal Protection/Sanitation (See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash (solution) |
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 1140
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