GB 1886.184-2016 Translated English of Chinese Standard. GB 1886.184-2016: National Food Safety Standard - Food Additive - Sodium Benzoatehttps://www.chinesestandard.net, 20 ก.ค. 2017 - 13 หน้า This Standard applies to food additive sodium benzoate; the food additive is made from benzoic acid which is reacted with sodium hydroxide or sodium bicarbonate. Benzoic acid is made by catalytic oxidation of petroleum toluene; sodium hydroxide or sodium bicarbonate is made with the method of ion exchange membrane. |
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3.5 acetate buffer 50 mL colorimetric accurate to 0.000 Acetic acid acid standard titration add dropwise add separately add water Analytical procedure Weigh Annex arithmetic mean Barium chloride benzoic acid Bromophenol blue c(HCl calcium carbonate Chromatographic column column and operating Dextrin diethyl ether Food Additive g of specimen GB/T heavy metals based hydrochloric acid standard inorganic chlorine mass fraction Method summary Methyl alcohol mL colorimetric tube mL of hydrochloric mL of nitric mL of water Nessler tube nitric acid solution parallel measurements permanganate standard titration pH 3.5 acetate Phenolphthalein phthalic acid standard Physicochemical indexes potassium permanganate standard prepared as specified procedure Weigh 1.0 Readily oxidizable substance Reagents and materials Sensory requirements silver nitrate solution sodium bicarbonate specified in GB specimen solution specimen test solution specimen to place standard titration solution standard turbidimetric solution standard working solution test solution appears turbidity of test volumetric flask water to dissolve Weigh 1.0 g