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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