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221368

Sigma-Aldrich

Sodium pyrophosphate decahydrate

ACS reagent, ≥99%

Synonym(s):

Sodium pyrophosphate tetrabasic decahydrate, Tetrasodium pyrophosphate

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About This Item

Linear Formula:
Na4P2O7 · 10H2O
CAS Number:
13472-36-1
Molecular Weight:
446.06
EC Number:
231-767-1
MDL number:
MFCD00149200
UNSPSC Code:
12352302
PubChem Substance ID:
329752262
NACRES:
NB.24

grade

ACS reagent

assay

≥99%

form

crystals or chunks

impurities

≤0.001% N compounds
≤0.01% insolubles

pH

9.5-10.5 (25 °C, 5%)

anion traces

chloride (Cl-): ≤0.002%
sulfate (SO42-): ≤0.005%

cation traces

Fe: ≤0.001%
heavy metals (as Pb): ≤0.001%

SMILES string

O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O

InChI

1S/4Na.H4O7P2.10H2O/c;;;;1-8(2,3)7-9(4,5)6;;;;;;;;;;/h;;;;(H2,1,2,3)(H2,4,5,6);10*1H2/q4*+1;;;;;;;;;;;/p-4

InChI key

VZWGHDYJGOMEKT-UHFFFAOYSA-J

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Application

Sodium pyrophosphate decahydrate may be used to catalyze the nucleation of sodium acetate trihydrate, a potential latent heat storage material.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

hcodes

H302,H318

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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