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product name Calcium chloride dihydrate Test items standard requirement Character Should be white, hard pieces or crystalline powder; odorless, easy to deliquesce. Very soluble in water, soluble in ethanol. Visible foreign objects 300g + 500ml of water is completely dissolved and placed for 24h, the solution should be colorless and transparent, and no yellowing or impurities appear Identification The aqueous solution should show the differential reaction between calcium salt and chloride PH 1.0g + 20ml water, pH: 6.5 ～ 8.5 Clarity and color of solution 1g + 10ml water, the solution should be clear and colorless Sulfate ≤0.018% (1.8ml standard solution) Barium salt 应符合规定 Aluminum salts, iron salts and phosphates 应符合规定 Magnesium salts and alkali metals Magnesium salts and alkali metals Heavy metals ≤10ppm Arsenic ≤0.0002% content 99%～101.5%
