Skip to Content
Merck
CN
All Photos(1)

Key Documents

Safety Information

71516

Sigma-Aldrich

Sodium pyrophosphate tetrabasic decahydrate

puriss. p.a., ACS reagent, ≥99.0% (T)

Synonym(s):

Pyrophosphate inorganic, Sodium diphosphate tetrabasic, Tetrasodium pyrophosphate

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
Na4P2O7 · 10H2O
CAS Number:
Molecular Weight:
446.06
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:

grade

ACS reagent
puriss. p.a.

Assay

≥99.0% (T)

impurities

≤0.001% total nitrogen (N)

pH

9.5-10.5 (25 °C, 50 mg/mL in H2O)

anion traces

chloride (Cl-): ≤20 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤1 mg/kg
Ca: ≤100 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤10 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

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

Looking for similar products? Visit Product Comparison Guide

Regulatory Information

新产品

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Sorry, we don't have COAs for this product available online at this time.

If you need assistance, please contact Customer Support.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service