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di- Sodium hydrogen phosphate dodecahydrate pure Ph. Eur., BP, USP
Synonym
A2641
sec.-Sodium phosphate, Sodium phosphate dibasic We herewith confirm that this product meets the
requirements of the European Pharmacopoeia (Ph. Eur. 9.0),
the US Pharmacopoeia (USP 40) and the British
Pharmacopoeia (BP 2014). state of matter
Solid Solubility (20°C)
218 g/L (H2O) Melting point
35°C (dec.) Formula
Na2HPO4 · 12H2O M
358.14 g/mol CAS-No.:
10039-32-4 HS-No.:
28352200 EC-No.:
231-448-7 Storage:
RT LGK:
10 - 13 Disposal:
14 WGK:
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di- Sodium hydrogen phosphate dodecahydrate pure Ph. Eur., BP, USP
Specification
Assay (titr.)
98.5 - 102.5 % Assay (titr., calc. on dried substance)
98.0 - 100.5 % Appearance of solution
passes test Identity
passes test In H2O insol. matter
max. 0.4 % KMnO4-red. subst. (as O)
passes test pH (5 %; H2O)
8.0 - 10.0 Heavy metals (as Pb)
max. 0.001 % Loss on drying (130°C)
55.0 - 64.0 % NaH2PO4
max. 2.5 % Water (K.F.)
57.0 - 61.0 % Chloride
max. 0.02 % Sulfate
max. 0.05 % As
max. 0.0002 % Fe
max. 0.002 % A2641