Difference between revisions of "Sodium pyrophosphate"

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== Description ==
 
== Description ==
  
White, crystalline powder that is used as a [http://cameo.mfa.org/materials/fullrecord.asp?name=buffer buffer], [http://cameo.mfa.org/materials/fullrecord.asp?name=emulsifier emulsifier], [http://cameo.mfa.org/materials/fullrecord.asp?name=sequestrant sequestrant], and [http://cameo.mfa.org/materials/fullrecord.asp?name=water softener water softener]. Sodium pyrophosphate, or TSPP, is used in de-inking newsprint, removing [http://cameo.mfa.org/materials/fullrecord.asp?name=iron stain rust stains], scouring [http://cameo.mfa.org/materials/fullrecord.asp?name=wool wool], and dyeing [http://cameo.mfa.org/materials/fullrecord.asp?name=textile textiles]. TSPP is also included as an ingredient in many [http://cameo.mfa.org/materials/fullrecord.asp?name=soap soaps], [http://cameo.mfa.org/materials/fullrecord.asp?name=detergent detergents], and [http://cameo.mfa.org/materials/fullrecord.asp?name=cleanser cleansers].
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White, crystalline powder that is used as a [http://cameo.mfa.org/materials/fullrecord.asp?name=buffer buffer], [http://cameo.mfa.org/materials/fullrecord.asp?name=emulsifier emulsifier], [http://cameo.mfa.org/materials/fullrecord.asp?name=sequestrant sequestrant], and [http://cameo.mfa.org/materials/fullrecord.asp?name=water%20softener water softener]. Sodium pyrophosphate, or TSPP, is used in de-inking newsprint, removing [http://cameo.mfa.org/materials/fullrecord.asp?name=iron%20stain rust stains], scouring [http://cameo.mfa.org/materials/fullrecord.asp?name=wool wool], and dyeing [http://cameo.mfa.org/materials/fullrecord.asp?name=textile textiles]. TSPP is also included as an ingredient in many [http://cameo.mfa.org/materials/fullrecord.asp?name=soap soaps], [http://cameo.mfa.org/materials/fullrecord.asp?name=detergent detergents], and [http://cameo.mfa.org/materials/fullrecord.asp?name=cleanser cleansers].
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
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== Authority ==
 
== Authority ==
  
* Richard S. Lewis, Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
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* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
  
 
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983  Comment: entry 9377
 
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983  Comment: entry 9377

Revision as of 06:30, 24 July 2013

Description

White, crystalline powder that is used as a buffer, emulsifier, sequestrant, and water softener. Sodium pyrophosphate, or TSPP, is used in de-inking newsprint, removing rust stains, scouring wool, and dyeing textiles. TSPP is also included as an ingredient in many soaps, detergents, and cleansers.

Synonyms and Related Terms

TSPP; tetrasodium pyrophosphate

FTIR

AaiTSPP.jpg


Other Properties

Soluble in water. Decomposes in ethanol.

Composition Na4P2O7
CAS 7722-88-5
Melting Point 880
Density 2.45
Molecular Weight mol. wt. = 266

Hazards and Safety

Toxic by inhalation. Contact may cause irritation.

LINK: International Chemical Safety Card

Authority

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 9377

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