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A17546 Sodium pyrophosphate, 98%

CAS Number
7722-88-5
Synonyms
Sodium phosphate (pyro)
Tetrasodium pyrophosphate

Stock No. Size Price ($) Quantity Availability
A17546-30 250g 28.80
A17546-0B 1000g 68.40
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Sodium pyrophosphate, 98%

MDL
MFCD00003513
EINECS
231-767-1

Chemical Properties

Formula
Na4O7P2
Formula Weight
265.90
Melting point
988°
Density
2.534
Storage & Sensitivity
Hygroscopic. Store under Nitrogen. Ambient temperatures.
Solubility
Soluble in water. Insoluble in ethyl alcohol.

Applications

Sodium pyrophosphate is used in water softener, detergent, emulsifying agent, metal cleaner and nutritional supplement. It acts as a buffering agent, thickening agent and dispersing agent. It also acts as a tartar control agent in toothpaste and dental floss. In addition, it is used as a chelating agent in antimicrobial studies. It is also used as a food additive in common foods such as chicken nuggets, crab meat and canned tuna.

Notes

Hygroscopic. Incompatible withstrong oxidizing agents and strong acids.

Literature References

Yoon, J.; El Mohtar, C. S. Constitutive model parameters of concentrated bentonite suspensions modified with sodium pyrophosphate. J. Mater. Sci. 2015, 50 (15), 5253-5261.

Juneja, V. K.; Cadavez, V.; Gonzales-Barron, U.; Mukhopadhyay, S. Modelling the effect of pH, sodium chloride and sodium pyrophosphate on the thermal resistance of Escherichia coli O157: H7 in ground beef. Food Res. Int. 2015, 69, 289-304.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Merck
14,9240
Harmonized Tariff Code
2835.39
TSCA
Yes
RTECS
UX7350000

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