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Property : colourless crystals or white crystalline granules (technical grade with light yellow colour), odorless, taste intensely tart flavour, readily soluble in water and ethanol. Molecular Formula : C6H8O7.H2O Molecular Weight : 210.14 CAS No.: 5949-29-1 Property : colorless or white crystalline powder. deliquescent in humid air and efflorescent in dry air. Molecular Formula : C6H8O7 Molecular Weight : 192.1 CAS No.: 77-92-9
Specification :
Anhy | Mono | |
According to | BP98 | BP98 |
Tests | Specifications | Specifications |
Characteristics | White crystals | Colourless crystals or white crystalline powder, efflorescent |
Solubility | Conforming with test | |
clarity and colour of solution | Conforming with test | Conforming with test |
Assay | 99.5%-101% | 99.5%-101% |
Water | 1% Max | 7.5%-9% |
Sulfate | 150ppm Max | 150ppm Max |
Readily carbonisable substances | Conforming with test | Not deeper than specifications |
Barium | Conforming with test | Conforming with test |
Calcium | 200ppm Max | 200ppm Max |
Lead(PB) | 0.5ppm Max | 1ppm Max |
Heavy metals | 10ppm Max | |
Iron | 50ppm Max | 50ppm Max |
Chloride | 50ppm Max | 50ppm Max |
Oxalate | 100ppm Max | 350ppm Max |
Aluminum | 0.2ppm Max | 0.2ppm Max |
Bacterial endotoxins | 0.5 I.U./mg Max | 0.5 I.U./mg Max |
Arsenic | 3ppm Max | 1ppm Max |
Mercury | 1ppm Max | 1ppm Max |
Sulfated ash | 0.05% Max | |
Tridodecylamine | 0.1ppm Max | |
Arganic volatile impurities | Conforming with test |
Usage : It is used as sour agent and preservative in food industry, preparation of citrate in pharmaceutical industry it also can be used as detergent in ordinary industry. Packing : It is packed with plastic bag as liner, two layers, kraft-bags, as the intermediate layer and a chemical fibre woven bag as the outer layer the net weight each bag is 25kg. Storage and transport: It should be stored in a ventilative and dry warehouse kept away from moisture and hot furthermore, it should be stored separately from poisonous substances acid handled with care so as to avoid damage to bags.