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| Sodium Citrate |
| Chemical Name: |
Dihydrous trisodium 2-hydroxy propane-1,2,3-tricarboxylate sodium citrate. |
| Molecular Formula: |
Na3C6H5O7·2H2O |
| Molecular Weight: |
249.10 |
| Properties: |
Colourless or white crystalline granule or crystalline powder, odourless;taste salty and cold;soluble in water,difficulity in ethanol;slightly deliquescence in moist air, PH7.6-8.6 in 5% aqueous solution,when heated to 150℃,it may lose crystal water. |
| Quality standard: |
GB6782-2009,BP93/98,E331 |
| Application: |
In food processing industry,it is used as buffer,chelate agent,nutrient additive,emulsifier,flavor for yoghurt. In pharmaceutical industry,it is used as anticoagulant and as binder in cheese and minced meat,acid coagulant in jellies and jam,emulsifier and stabilizer in cheese and ice cream. |
| Packing: |
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 25kg. |
| Storage and transport: |
Kept in tightly-closed containers, it should be stored in a dry and ventilative warehouse, kept away from moisture and hot. Furthermore, it should be separately from poisonous substances. Handled with care,so as to avoid damaging to bags. |
|
Index item |
GB6782-2009 |
BP93/98 |
E331 |
|
Appearance |
-- |
Colorless or white crystal or crystalline |
|
Content,% |
99.0-100.5t |
99.0-101.0 |
99.0-101.0 |
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Acidity and alkalinity |
up to specification |
Accord with the test |
Accord with the test |
|
Sulfate,≤% |
0.01 |
0.015 |
0.015 |
|
Heavy metal(in lead),≤% |
-- |
0.001 |
0.0005 |
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Oxalate,≤% |
0.01 |
0.03 |
0.01 |
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Readily carbonizable substance |
1.0% |
Accord with the test |
Accord with the test |
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Chloride,≤% |
0.005 |
0.005 |
0.005 |
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Loss on drying,% |
10.0-13.0 |
11.0-13.0 |
11.0-13.0 |
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PH value(5% transparent solvent) |
-- |
-- |
7.5-9 |
|
Arsenic,≤ppm |
1 |
-- |
1 |
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Lead,≤ppm |
2 |
-- |
1 |
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Mercury,≤ppm |
-- |
-- |
1 |
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Clarity |
-- |
– |
Accord with the test |
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Light transmittance |
96.0 |
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Ferric salt≤mg/kg |
5 |
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Calcium salt ≤mg/kg |
0.02 |
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Water insolubles |
passed soluble film test |
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