Formula：Na₃C₆H₅O₇·2H₂0

 Molecular：249．10

 Specificity：

Colourless or white crystaIline granuIe or crystaIline powder odourless;taste,saIty and acid;solubIe  in water,diIffIicuIity in ethanoI;sIightIy deliquescence in moist air,PH7．6－8．6 in 5% agueous soIution,when heated to 150℃,it may lose crystal water.

Quality standard

Name of index	Bp93	FCC-IV
Appearance	Colorless or white crystal or crystalline
Identification Test	-	Accord with the test
Content(Na3C6H5O7·2H20),%	99.0-101.0	99.0-100.5
Acidity and Alkalinity	0.2	Accord with the test
Sulphates,≤%	0.015	-
Heavy metal(As Pb),≤%	0.001	0.001
Oxalate,≤%	0.03	-
Easy carbonify substance	Accord with the stipulatioin	-
Chioride,≤%	0.005	-
Loss on drying,%	11.0-13.0	10.0-13.0

 

 

 

 

 

 

Uses：In food processing industry,it is used as buffer,cheIate agent, nutrient additive,emulsifier,fIavor for yoghurt．In pharmaceuticaI industry,it is used as anticoaguIant and as preservative in syrup manufactured

goods,buffer acidity acid in cold drink,prevent acid in  dairy products,used as binder in cheese and minced meat,acid coaguIant in jeIlies and jam,emuIsifier and stabiIizer, in cheese and ioe cream.

 

Packing：It is packed with poIyethylene bag as Iiner and a compound pIastic woven bag as the outer Iayer．The net