Orthophosphoric Acid

Specifications of Phosphoric Acid food grade
No.	Items of Analysis	Unit	National standard: GB3149-2004	Analytical data
1	Color	Apha	≤20	10
2	H3PO4	%	≥85.0	85.2
3	ArsenicAs	%	≤0.00005	0.00002
4	Heavy metal	%	≤0.0005	0.0003
5	Fluorine(F)	%	≤0.0010	0.0001
6	Oxide(H3PO3)	%	≤0.0120	0.0030

Phosphoric acid mainly used in producing various phosphate, phosphate treatment on metal surface, compounding electrolytic and chemical polishing liquid, and used as a catalyst, drying agent and cleaning fluid; used in producing phosphate refractory clay, inorganic adhesives; used as a metal antirust paint in coating industry

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