Disodium hydrogen phosphate heptahydrate 98.0-100.5%, EMPROVE® ESSENTIAL DAC, USP, SAFC®

Supplier: EMD MILLIPORE – PCS CA EXCEP

Synonyms: Sodium phosphate dibasic heptahydrate , Sodium monohydrogen phosphate heptahydrate , Sodium hydrogen phosphate heptahydrate

1.06574.9013 1.06574.9029 1.06574.1000 1.06574.1000

CA1.06574.1000CS 1640.78 CAD

EM1.06574.9013 CA1.06574.1000 EM1.06574.9029 EM1.06574.1000

Disodium hydrogen phosphate heptahydrate 98.0-100.5%, EMPROVE® ESSENTIAL DAC, USP, SAFC®

di-Sodium hydrogen phosphate heptahydrate

Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).

Certifications: Corresponds to DAC, USP

Formula: HNa₂O₄P·7H₂O
MW: 268.07 g/mol
Melting Pt: 48 °C
Density: 1.7 g/cm³ (20 °C)

MDL Number: MFCD00149180
CAS Number: 7782-85-6

Specification Test Results

Assay (alkalimetric, calculated on dried substance)	98.0 - 100.5 %
Identity	passes test
Appearance of solution	passes test
Insoluble substances	≤ 0.4 %
pH-value (5 %; water)	8.7 - 9.3
Sodium Dihydrogene phospate (NaH₂PO₄)	passes test
Chloride (Cl)	≤ 0.0200 %
Sulfate (SO₄)	≤ 0.0500 %
Heavy metals (as Pb)	≤ 0.0010 %
As (Arsenic)	≤ 0.0002 %
Fe (Iron)	≤ 0.0020 %
Residual solvents (ICH Q3C)	excluded by manufacturing process
Reducing substances	passes test
Loss on drying (130 °C)	45.0 - 49.0 %

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