Description
Sodium Citrate
Chemical name: Sodium Citrate
Molecular formula: Na3C6H5O**2H2O
Molecular weight: **9.*0
CAS NO: ******2
Sodium citrate
Sodium citrate may refer to any of the sodium salts of citric acid
(though most commonly the third):
Monosodium citrate NaH2C6H5O7
Disodium citrate Na2H(C3H5O(COO)3)
Trisodium citrate Na3C6H5O7
As food additives, the 3 forms of the salt are also collectively
known by the E number E**1 and the term sour salt is coined for
this chemical, because it possesses flavours of sour and salty.
Food and drink
Sodium citrate is sometimes used as an acidity regulator in drinks,
and also as an emulsifier for oils when making cheese. It allows
the cheeses to melt without becoming greasy. Sodium citrate can be
used as a flavouring (typically Club Soda) or as a food
additive.
Character: Colourless or white crystalline granule or
crystalline powder, odorless, tastes salty and cool. soluble in
water, difficulty in ethanol and slightly deliquescent in moist
air, PH value is 7.**8.6 in 5% aqueous solution.If heated to **0
Celsius degree,it may lose crystal water.
Usage: In food processing industry, it is used as buffer,
chelae agent and nutrition supplement, emulsification, flavoring
for yoghurt. If in cool drink, it can abirritate the sourness of
citrate acid, prevent the acidification of dairy products. It is
used as binder in cheese and minced meat, gelatinize in jellies and
syrup, emulsification and stabilizer in cheese and ice cream.
Packaging: It is packed with polyethylene bag as liner and a
compound plastic woven bag as the outer layer. The net weight of
each bag is *5kg.
Specification BP*3 GB********9
Assay, % *9.****1.0 *9.****0.5
light transmittance, % - *5.0
moisture, % *1.***3.0 *0.***3.0
Acidity or alkalinity 0.2 meet testing
Sulphates, % no more than 0.**5 0.*1
Fe salt , mg/kg no more than - 5
Heavy Metal (Pb), % no more than 0.**1 -
Oxalate, % no more than 0.*3 0.*1
Ca salt, % no more than - 0.*2
Readily Carbonizable Substances, % no more than Accord With
The Test 1.0
Chlorides, % no more than 0.**5 0.*5
Pb,mg/kg no more than - 2
As salt, mg/kg no more than - 1
