Burdick & Jackson

di-Sodium hydrogen phosphate dodecahydrate

SKU

66150

Extra pure, meets analytical specifications of Reagent European Pharmacopoeia, BP, E 339

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Brand

Burdick & Jackson

CAS Numbers (All)

10039-32-4

EC Number

231-448-7

Linear Formula

Na₂HPO₄ · 12 H₂O

Molar Mass

358.14 g/mol

Property	Value
Assay	98.5 - 102.5 %
Assay (calculated to the dried substance)	98.5 - 101 %
Assay of NaH₂PO₄ (calculated to dried substances)	Max. 1.0 %
Water (Karl Fischer)	57.0 - 61.0 %
Loss on drying (130°C)	Max. 61 %
Water insoluble matter	Max. 0.2 %
pH (1 %,20°C)	8.4 - 9.6
Arsenic (As)	Max. 1 ppm
Cadmium (Cd)	Max. 1 ppm
Copper (Cu)	Max. 0.002 %
Iron (Fe)	Max. 10 ppm
Mercury (Hg)	Max. 1 ppm
Potassium (K)	Max. 0.005 %
Lead (Pb)	Max. 1 ppm
Zinc (Zn)	Max. 0.001 %
Heavy metals (as Pb)	Max. 10 ppm
Chloride (Cl)	Max. 10 ppm
Fluoride (F)	Max. 10 ppm
Sulfate (SO₄)	Max. 100 ppm
Appearance of the solution	complying
Reducing impurities	complying
Residual solvents	complying

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