Disodium Hydrogen Phosphate (Food Additives)
Formula: Na2HPO4·12H2O，Na2HPO4·2H2O，Na2HPO4
Molecular: 358.057
Specificity: Colourless rhombic crystalline or prismatic  crystal, easily soluble in water, insoluble in ethahol, relative density 1.63, melting point 34.6℃, when heated   to 180℃, it may lose crystal water, convert to anhydrous. 
Quality standard:

Name of index		HG2920-2000
Content(As Na2HPO4), ≥%		98.0
As, ≤%		0.0003
Heavy metal(As Pb), ≤%		0.001
Fluoride(F), ≤%		0.005
Water insolubles, ≤%		0.2
Loss on      dryying	Na2HPO4, ≤%	5.0
	Na2HPO4·2H2O, %	18.0-22.0
	Na2HPO4·12H2O, ≤%	61.0
Annotate: Above indeses are acquired on the of dry basis   except of the loss on drying.

* Uses: In food industry, it is used as agent for bake, prevent oxidizing, in dairy product, it is used as    emulsifier, prevent albumen conagulation. In solid  beverage, it is used as buffer, chelate, agent, emulsifier.
*  Packing: lt is packed with poIyethyIene bag as Iiner, and  a woven bag as the outer Iayer, The net weight of each bag is 25kg.
* Storage and transport: lt should be stored in a dry,   ventiIatime and cIean warehouse; kept away from moisture and hot. Futhermore, it should be stored separateIy from    poisonous substantes.