Disodium Hydrogen Phosphate

Supply TypeManufacturer, Exporter
Preferred Buyer Location All over the world

The Di Sodium Hydrogen Phosphate also known as Sodium Phosphate Di Basic, Di Sodium Hydrogen Orthophosphate is sodium salt of phosphoric acid and occurs as a white powder which is highly water soluble and hygroscopic. Di-sodium Phosphate is obtained when a solution of phosphoric acid is reacted with caustic soda, until the higher PH is obtained.

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Specifications

Sr. No	Parameters	Unit	Specified value
1	Appearance	Visual observation	A white powder, hygroscopic.
2	Solubility (10% solution)	% w/v	Clear solution
3	pH of 5% solution	% w/v	9.0 – 9.5
4	Assay (LOD basis)	% w/w	99.0% min
5	Phosphate (as P2O5)	% w/w	49.0% min
6	Chloride (as Cl)	% w/w	0.010% max.
7	Sulphate (as SO4)	% w/w	0.010% max.
8	Iron (as Fe)	% w/w	0.002% max
9	Lead (as Pb)	% w/w	0.0005% max
10	Arsenic (as As)	% w/w	0.0005% max
11	Loss on drying (at 120°C)	% w/w	1.0 % max
Lead (Pb)	5 PPM	0.2
Arsenic	5 PPM	0.03