GB 1903.64-2023 English PDF

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GB 1903.64-2023: (National Food Safety Standard Food Nutritional Enhancer Manganese Chloride)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 1903.64-2023	179	Add to Cart	3 days	(National Food Safety Standard Food Nutritional Enhancer Manganese Chloride)	Valid

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Basic data

Standard ID: GB 1903.64-2023 (GB1903.64-2023)
Description (Translated English): (National Food Safety Standard Food Nutritional Enhancer Copper Carbonate)
Sector / Industry: National Standard
Classification of Chinese Standard: X09
Word Count Estimation: 10,182
Date of Issue: 2023-09-06
Date of Implementation: 2024-03-06
Issuing agency(ies): National Health Commission of the People's Republic of China, State Administration for Market Regulation
Summary: This standard applies to food nutrition fortifier copper carbonate prepared from sodium carbonate or sodium bicarbonate, soluble copper salts, or cathode copper (electrolytic copper), liquid ammonia, and carbon dioxide.

GB 1903.64-2023: (National Food Safety Standard Food Nutritional Enhancer Manganese Chloride)

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
National Standards of People's Republic of China National food safety standards Food nutrition fortifier manganese chloride Published on 2023-09-06 Implemented on 2024-03-06 National Health Commission of the People's Republic of China Released by the State Administration for Market Regulation National food safety standards Food nutrition fortifier manganese chloride

1 Scope

This standard applies to manganese chloride, a food nutrition fortifier, which is purified from electrolytic manganese or manganese carbonate as raw material and reacted with hydrochloric acid. 2 Chemical name, molecular formula and relative molecular mass 2.1 Chemical name Manganese chloride tetrahydrate 2.2 Molecular formula MnCl2·4H2O 2.3 Relative molecular mass 197.90 (according to.2018 international relative atomic mass)

3 Technical requirements

3.1 Sensory requirements Sensory requirements should comply with Table 1. Table 1 Sensory requirements Project requirements inspection method Color pink to rose red State translucent irregular crystals Take an appropriate amount of sample and place it evenly in a clean, dry white porcelain plate or transparent beaker. Observe its color and condition under natural light 3.2 Physical and chemical indicators The physical and chemical indicators should comply with the provisions of Table 2. Table 2 Physical and chemical indicators Project indicator inspection method Manganese chloride (MnCl2·4H2O) content (on a dry basis), w/% 98.0~102.0 A.3 in Appendix A Loss on drying, w/% 36.0~38.5 A.4 in Appendix A Water-insoluble matter, w/% ≤ 0.005 A.5 in Appendix A pH(50mg/mL) 4.0~6.0 GB/T 9724 Sulfate (calculated as SO4), w/% ≤ 0.005 A.6 in Appendix A Ammonium sulfide does not precipitate, w/% ≤ 0.2 A.7 in Appendix A Iron (Fe)/(mg/kg) ≤ 5 A.8 in Appendix A Lead (Pb)/(mg/kg) ≤ 4.0 GB 5009.12 or GB 5009.75 Zinc (Zn) passed test A.9 in Appendix A

Appendix A

Testing method Warning. Some of the inspection processes of this standard use strong acid reagents. Please operate with caution to avoid human injury. A.1 General provisions Unless other requirements are specified, the reagents and water used in this standard refer to analytically pure reagents and grade three water specified in GB/T 6682.Under test Unless other requirements are specified, the standard solutions, standard solutions for impurity determination, preparations and products used shall be in accordance with GB/T 601, GB/T 602, Preparation in accordance with GB/T 603.The solutions used in the test refer to aqueous solutions unless the solvent used to prepare them is specified. A.2 Identification test A.2.1 Reagents and materials A.2.1.1 Ammonium sulfide solution (mass fraction greater than 8%). A.2.1.2 Acetic acid. A.2.1.3 Nitric acid. A.2.1.4 Silver nitrate solution (10g/L). Weigh 1g of silver nitrate (accurate to 0.01g), add water to dissolve and dilute to 100mL. A.2.1.5 Ammonia solution (10%). Measure 40mL of concentrated ammonia solution and add water to dilute to 100mL. A.2.2 Analysis methods A.2.2.1 Identification of manganese ions Weigh about 0.5g of the sample, add 10mL of water to dissolve it, and add ammonium sulfide solution (A.2.1.1) to produce a light orange precipitate, which should be dissolved in acetate. Acids (A.2.1.2). A.2.2.2 Chloride ion identification Weigh about 0.5g of the sample, add 10mL of water to dissolve it, and add silver nitrate solution (A.2.1.4) to produce a white precipitate. This precipitate should be insoluble in nitrate. Acid (A.2.1.3), dissolved in excess ammonia solution (A.2.1.5). A.3 Determination of manganese chloride content (on a dry basis) A.3.1 Method principle In an ammonia-ammonium chloride buffer solution with a pH value of 10, using chrome black T as the indicator and disodium ethylenediaminetetraacetate (EDTA) as the standard Titrate the solution and calculate the content of manganese chloride based on the dosage of disodium ethylenediaminetetraacetate standard titration solution. A.3.2 Reagents and materials A.3.2.1 Hydroxylamine hydrochloride solution. 10%. A.3.2.2 Disodium ethylenediaminetetraacetate standard titration solution. c(EDTA)=0.1mol/L. A.3.2.3 Ammonia-ammonium chloride buffer. Weigh 54g of ammonium chloride, dissolve it in water, add 350mL of ammonia, and dilute to 1000mL (pH≈10). A.3.2.4 Chrome black T indicator liquid. 5g/L. A.3.3 Instruments and equipment Electronic balance, accuracy is 0.0001g. ......

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