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SODIUM PHOSPHATE DIBASIC DODECAHYDRATE Extra Pure

sec-Sodium phosphate; Sodium phosphate dibasic; Disodium phosphat; Sodium hydrogen phosphate dodecahydrate

COAs

Packings

500 g (00500)

25 Kg (0025K)

50 Kg (0050K)

1PW1200500 1PDL00030K 1PDLP0065K
Print friendly version
Article No. 05975 Grade Extra Pure
Purity 98.5% CAS No. 10039-32-4
Molecular Formula Na2HPO4.12H2O Molecular Weight 358.14
H.S. Code 2835.2990 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour Colorless crystals
Odour Odorless pH value 8.4 - 9.6 at 36 g/l at 25 °C
Melting point/ Freezing point [°C] 34°C Density [g/cm3] 1.5
Solubility in water [% weight] 35.8 g/l at 20 °C

Specifications

Appearance Colourless crystals Assay (acidimetric) 98.5 - 100.5%
pH (5% solution in water) 9.0 - 9.3 Chloride (Cl) Max. 0.01%
Sulphate (SO4) Max. 0.01% Sodium dihydrogen phosphate (NaH2PO4) Max. 1.0%
Heavy metal (as Pb) Max. 0.001% Iron (Fe) Max. 0.001%
Arsenic (As) Max. 0.0001% Substance reducing KMnO4 (as O) Max. 0.02%
Loss on drying (at 130°C) 57 - 61% Water (by KF) 57 - 61%
Revision Date: 22-Jan-2016

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