White powder or granular; Relative density 1.86g/cm3;Soluble in water and insoluble in ethanol; If its aqueous solution is heated together with diluted inorganic acid, it will be hydrolyzed into Phosphoric Acid; It is hydroscopic, and when absorbing humidity it will become into a product with hexa-hydrates; If it is heated at a temperature above 220℃, it will be decomposed into sodium meta phosphate.

As a leavening agent it is applied to roast foodstuffs to control the fermentation speed; When applied to instant noodles, it can shorten water resetting time and avoid stickiness and mushiness of the noodles; When applied to crackers or cakes, it may shorten fermentation time, lower the breakage, make the porous space in good order and therefore lengthen the shelf life.

ITEM	STANDARD
Na2H2P2O7	95.0% MIN
APPEARANCE	WHITE POWDER
WATER INSOLUBLE	1.0% MAX
ARSENIC( AS)	3PPM MAX
LOSS ON DRYING	0.5% MAX
CADMIUM (PPM)	1 MAX
LEAD (PPM)	4 MAX
MERCURY (PPM)	1 MAX
HEAVY METAL( PB)	15PPM MAX
FLUORID( PPM)	10 MAX
PH VALUE	3.5-4.5

 

Phosphorous acid is in Colorless, transparent and syrupy liquid or rhombic crystalline; Phosphorus acid is odorless and tastes very sour; its melting point is 42.35℃ and when heated to 300℃ phosphorous acid will become into meta Phosphoric Acid; its relative density is 1.834 g/cm3;phosphoric acid is easily soluble in water and resolves in ethanol; Phosphate acid may irritate human skin to cause phlogosis and destroy the issue of human body; phosphorus acid shows corrosiveness being heated in ceramic vessels; phosphate acid has got hydroscopicity.

Phosporic Acid Uses :

Technical grade Phosphoric Acid may be used to produce variety of Phosphates, electrolyte treatment liquids or chemical treatment liquids, refractory mortar with phosphoric acid and inorganic coheretant. Phosporic acid is also used as a catalyst, drying agent and cleaner. In coating industry phosphoric acid is used as a rust-proof coating for metals; As a acidity regulator and nutrition agent for yeast food grade phosphoric acid may be applied to flavors, canned food and light drinks as well as used in wine brewery as a nutrients source for yeast to prevent the reproduction of useless bacteria.

 

Specifications	Phosphoric Acid Industrial Grade	Phosphoric Acid Food Grade
Appearance	Colorless, transparent syrupy liquid or in very light color
Colour	≤ 30	≤ 20
Assay (as H3PO4 )	≥ 85.0%	≥ 85.0%
Chloride(as Cl- )	≤ 0.0005%	≤ 0.0005%
Sulphats(asSO42- )	≤ 0.005%	≤ 0.003%
Iron (Fe)	≤ 0.002%	≤ 0.001%
Arsenic (As)	≤ 0.005%	≤ 0.0001%
Heavy metals,as Pb	≤ 0.001%	≤ 0.001%
Oxidable matter (asH3PO4)	≤ 0.012%	no
Fluoride,as F	≤ 0.001%	no