English name: Malonic acid, Propanedioic acid, Methane dicarbonic acid, Methane dicarboxylic acid Other names: caroic acid, betain acid, malic acid, methane dicarboxylic acid, propane dicarboxylic acid CAS number: 141-82-2 C3H4O4=104.06 Level : CP content: ≥ 98.0% Melting point: 133 ~ 137 ° C (2 ° C) Water dissolution test: qualified sulfate: ≤ 0.01% Chloride: ≤ 0.02% Burning residue: ≤ 0.1% Properties: colorless fine crystal. Sublimation in a vacuum. 1G was dissolved in 0.65 ml of water, about 2 ml of ethanol, 1.1 ml of methanol, 3 ml of propanol, 13 ml of diethyl ether, and 7 ml of pyridine. The relative density is 1.63. The flash point is about 172 °C. Low toxicity, half lethal dose (rat, oral) 1310mG/kG. Irritating use: biochemical research. A complexing agent for bismuth and copper is measured. Calibration of standard alkaline solutions. Biochemical research. Organic Synthesis. Make barbiturate salt. Gas chromatographic analysis standard preservation: RT
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