Fluka

Sodium phosphate dibasic

SKU

04276

Puriss., meets analytical specification of BP, Ph. Eur., USP, FCC, E 339, anhydrous, 98-100.5% (calc. to the dried substance)

Synonym(s)

sec-Sodium phosphate; Disodium hydrogen phosphate; Disodium phosphate; Sodium hydrogenphosphate

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General Information:

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Brand Fluka	CAS Numbers (All) 7558-79-4	EC Number 231-448-7	Linear Formula Na₂HPO₄	MDL Number MFCD00003496
Molar Mass 141.96 g/mol	RTECS Number WC4500000	Synonyms sec-Sodium phosphate; Disodium hydrogen phosphate; Disodium phosphate; Sodium hydrogenphosphate

Property	Value
Assay (calculated to the dried substance)	98.0 - 100.5 %
Assay of NaH₂PO₄ (calculated to dried substances)	Max. 1.0 %
Loss on drying (105°C, 4 h)	Max. 1.0 %
Loss on drying (130°C)	Max. 1.0 %
pH (1 %,20°C)	8.4 - 9.6
Ammonium (NH₄)	Max. 0.002 %
Arsenic (As)	Max. 1 ppm
Cadmium (Cd)	Max. 1 ppm
Copper (Cu)	Max. 0.001 %
Iron (Fe)	Max. 20 ppm
Mercury (Hg)	Max. 1 ppm
Lead (Pb)	Max. 1 ppm
Zinc (Zn)	Max. 0.001 %
Heavy metals (as Pb)	Max. 10 ppm
Chloride (Cl)	Max. 50 ppm
Fluoride (F)	Max. 10 ppm
Pyrophosphate (as Na4P₂O₇)	Max. 2.0 %
Sulfate (SO₄)	Max. 200 ppm
Water insoluble matter	Max. 0.2 %
Appearance of the solution	complying
Reducing impurities	complying
Residual solvents	complying
Turbidity	Max. 3.5 NTU

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