Citric acid sodium is the most important salt of citric acid at present, it is mainly produced from starch material by fermentation to generate citric acid, then the citric acid is neutralized with alkali ation and the Citric acid sodium is prepared. Sodium citrate is an excellent chelating agent or complexing agent in chemistry, all the applications in the industrial field are the use of this characteristic of sodium citrate.
Content ≥99%
Property: white or slightly yellow crystalline powder, odorless, cool and refreshing, salty and spicy, it is stable in air at room temperature, little deliquescent in wet air, weathering in the warm air, it begin to lose water of crystallization at 150 ℃.
Quality standard：
|
Items
|
Unit
|
GB6782-2009
|
BP2009
|
|
Property
|
|
White or colorless crystalline granules or powder
|
|
Detection test
|
|
Complies
|
|
Clarity of solution or color
|
|
Complies
|
|
pH value
|
|
Complies
|
|
light transmittance
|
%
|
≥95.0
|
Complies
|
|
Moisture
|
%
|
10.0~13.0
|
11.0~13.0
|
|
Assay
|
%
|
99.0~100.5
|
99.0~101.0
|
|
Iron salt
|
ppm
|
≤5
|
|
|
chloride
|
ppm
|
≤50
|
≤50
|
|
sulphate
|
ppm
|
≤100
|
≤150
|
|
Carbonite
|
ppm
|
≤100
|
≤300
|
|
Calcium
|
ppm
|
≤200
|
|
|
Heavy metal
|
ppm
|
|
≤10
|
|
As
|
ppm
|
≤1
|
|
|
Pb
|
ppm
|
≤2
|
|
|
Hg
|
ppm
|
|
|
|
water-insoluble
|
|
Complies
|
|
|
Tartrate
|
|
|
|
|
Pyrogen
|
J/mg
|
|
Complies
|
|
PH
|
|
|
|
Application:
In the food industry it can be used as buffering agent, binder, buttermilk nutritional supplement, emulsifier and flavoring agent.
In the pharmaceutical industry it can be used as anti clotting drugs, in syrup preparation as preservative.
In cool drink it can be used to ease the sourness of citric acid, it can prevent rancidity for dairy products, it can be used as tackifier of cheese and meat paste, gelling agent of jelly and juice, emulsifier of cheese and ice cream, stabilizer etc.
