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Merck
CN

Certificate of Analysis

Product Name:
Sodium pyrophosphate tetrabasic

Product Description:
purum, anhydrous, ≥98%

Product Brand:
Sigma-Aldrich

Product Number:
04286

Molecular Weight:
265.90

Molecular Formula:
Na4P2O7

CAS Number:
7722-88-5

Test
Specification
Lot 33090 Results
assay
This former Riedel-de Haën product has been rebranded. The Riedel-de Haën branded Certificate of Analysis for this lot is still available on request. Contact your local Sigma-Aldrich office.

loss on drying (105°C, 4 h)
99.9 %

iron (Fe)
0.2 %

heavy metals (as Pb)
< 0.002 %

chloride (Cl)
< 0.002 %

sulphate (SO4)
< 0.03 %

QC-Releasedate
< 0.03 %

rec. Retest Date
26.01.05

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28.02.06

quality signature