GB 1903.37-2018National food safety standard -- Food nutrition enhancer (English PDF)

GB 1903.37-2018 is the English-translated version of 食品安全国家标准 食品营养强化剂 柠檬酸铁.

GB 1903.37-2018 is the Chinese national food safety standard for the food nutrition enhancer ferric citrate, made by chemical synthesis and refining from citric acid, ferrous sulfate and hydrogen peroxide, or from citric acid and ferric hydroxide.

Clause 2 gives the chemical name, the trivalent iron salt of 2-hydroxy-1,2,3-propanetricarboxylic acid, the molecular formula C6H5O7Fe·nH2O with n from 0 to 5, and the relative molecular mass of 244.94 for the anhydrous form on the 2016 international relative atomic masses.

Clause 3 sets the technical requirements: the sensory requirements of Table 1, which call for a reddish brown or brown colour, a flake crystal or crystalline powder state and no odour or peculiar smell, and the physical and chemical indicators of Table 2. It was issued on 21 June 2018 and has applied since 21 December 2018.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

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