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Characters should be colorless and transparent crystals; odorless and bitter. Identification The aqueous solution should show the identification reaction between the magnesium salt and the chloride. Acidity 1.0g plus 20ml water, pH5.0～6.5 The Clarity and color of solution 2.5g+25ml water, the solution should be clear and colorless The Visible foreign objects 500g+3L water, no visible foreign objects on the bottom and the surface of the solution Bromide ≤0.05% Sulphate ≤0.009% (1.8ml standard solution) Moisture 52.0%～54.0% Aluminum salt ≤1ppm Barium salt should meet the requirements Calcium salt ≤0.1% Potassium salt should meet the regulations Iron salt ≤0.0009% (1.8ml standard solution) Heavy metal ≤10ppm Arsenic salt ≤0.0002% Content 99.0%～100.5%%
