Calcium Disodium EDTA FCC Food Grade
Calcium Disodium Ethylenediaminetetraacetate; Calcium
Disodium (Ethylenedinitrilo)tetraacetate; Calcium Disodium EDTA.
C10H12CaN2Na2O8-2H2O --- Formula weight 410.30
INS: 385 --- CAS: 23411-34-9

Calcium Sulfate Dihydrate Hemihydrate Anhydrous CAS Number 7778-18-9, 10034-76-1, 7778-18-9 & Calcium Disodium EDTA or Sodium Calcium Edetate USP NF FCC Food Grade CAS Number 62-33-9 or 23411-34-9 Supplier Exporter, Manufacturer:

REQUIREMENTS
Identification:
A. A 1:20 aqueous solution responds to the oxalate test for Calcium and to the flame test for Sodium.
B. The infrared absorption spectrum of a mineral oil dispersion of sample exhibits maxima only at the same wavelengths as those of a similar preparation of USP EDTA Calcium Disodium Reference Standard.
C. Add 2 drops of ammonium thiocyanate and 2 drops of ferric chloride to 5 mL of water contained in a test tube. Add about 50 mg of sample to the deep red solution so obtained, and mix. The deep red color disappears.
Assay: Not less than 97.0% and not more than 102.0% of C10H12CaN2Na2O8, calculated on the anhydrous basis.
Lead: Not more than 4 mg/kg.
Magnesium-Chelating Substances: Passes test.
Nitrilotriacetic Acid: Not more than 0.1%.
pH of a 1:100 Solution: Between 6.5 and 7.5.
Water: Not more than 13.0%.

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