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L-天门冬氨酸钙
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[产品名称]
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L-天门冬氨酸钙
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[分子式]
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C4CaH7NO4·2H2O
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[外观]
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White crystalline powder
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含量(以天门冬计)
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73.5~76.5％
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含量(以Ca计)
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10.8~12.0％
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比旋光度
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+19.0°~+20.0°
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氯化物
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≤0.02%
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铵含量(NH4)
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≤0.02%
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硫酸盐(SO4)
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≤0.02%
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铁(Fe)
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≤20ppm
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重金属 (Pb)
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≤10ppm
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砷含量 (As2O3)
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≤1ppm
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干燥失重
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≤0.50%
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PH值
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6.0~7.0
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