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    Special Cyano Complex

Calcium ferrocyanide E 538

Chemical name/synonyms:
Calcium ferrocyanide/ Yellow prussiate of lime, calcium hexacyanoferrate.
Chemical Formula:Ca2Fe(CN)6·12H2O      Molecular Weight:508.29
CAS No.: 13821-08-4     EINECS No.: 237-508-9
Functional Class: Anticaking agents.
Description:This product is  a yellow crystal .It will decompose when it is scorching hot.It is soluble in water,insoluble in alcohol.It is used to remove metal impurities in  the manufacture of citric acid ,tartaric acid and other acids.
purity criteria

Item

E538 Standard

Assay[Ca2Fe(CN)6·12H2O],%   ≥

99.0

Free moisture,%               ≤

1

Water-insoluble matter,%        ≤

0.1

Chloride(CL),%                ≤

0.2

Sulphate(SO4),%               ≤

0.1

Lead(Pb),             mg/kg   ≤

5

Free cyanide

Not detectable.

Ferricyanide

Not detectable.

Packing: 25 kg/cardboard barrels or according to customer requirement.
Storage:keep it in a dry and sealed.

 
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