Difference between revisions of "Sodium pyrophosphate"

Latest revision as of 09:19, 2 June 2022

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

Risks

Toxic by inhalation.
Contact may cause irritation.
ThermoFisher: SDS

Physical and Chemical Properties

Soluble in water. Decomposes in ethanol.

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

Resources and Citations

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

@@ Line 1: / Line 1: @@
 == 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].
+White, crystalline powder that is used as a [[buffer|buffer]], [[emulsifier|emulsifier]], [[sequestrant|sequestrant]], and [[water%20softener|water softener]]. Sodium pyrophosphate, or TSPP, is used in de-inking newsprint, removing [[iron%20stain|rust stains]], scouring [[wool|wool]], and dyeing [[textile|textiles]]. TSPP is also included as an ingredient in many [[soap|soaps]], [[detergent|detergents]], and [[cleanser|cleansers]].
 == Synonyms and Related Terms ==
@@ Line 9: / Line 9: @@
 [[[SliderGallery rightalign|aaiTSPP.jpg~FTIR]]]
-== Other Properties ==
+== Risks ==
+* Toxic by inhalation.
+* Contact may cause irritation.
+* ThermoFisher: [https://www.fishersci.com/store/msds?partNumber=AC448065000&productDescription=SODIUM+PYROPHOSPHATE+DEC+500GR&vendorId=VN00032119&countryCode=US&language=en SDS]
+== Physical and Chemical Properties ==
 Soluble in water. Decomposes in ethanol.
@@ Line 22: / Line 28: @@
 |-
 ! scope="row"| Melting Point
-| 880
+| 880 C
 |-
 ! scope="row"| Density
-| 2.45
+| 2.45 g/ml
 |-
 ! scope="row"| Molecular Weight
@@ Line 31: / Line 37: @@
 |}
-== Hazards and Safety ==
+==Resources and Citations==
-Toxic by inhalation.  Contact may cause irritation.
-LINK: [http://www.cdc.gov/niosh/ipcsneng/neng1140.html International Chemical Safety Card]
-== Authority ==
-* Richard S. Lewis, Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
+* 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