物质信息
ID:369468
名称和标识
IUPAC标准名
trisodium 2-hydroxypropane-1,2,3-tricarboxylate dihydrate
别名
Trisodium citrate dihydrate柠檬酸 三钠盐 二水合物柠檬酸钠 二水合物柠檬酸三钠 二水合物Sodium citrate tribasic dihydrateCitric acid trisodium salt dihydrate
IUPAC传统名
trisodium citrate dihydrate
化合物性质
产品相关信息
杂质
≤0.06% free acid (as C6H8O7)
acidity or alkalinity, complies
11.0-13.0 water (Karl Fischer)
≤0.04% free alkali (as NaOH)
Residual solvent, in accordance
≤0.0005% heavy metals (as Pb)
痕量阳离子
Cu: ≤10 mg/kg
Fe: ≤10 mg/kg
Zn: ≤10 mg/kg
As: ≤1 mg/kg
Hg: ≤1 mg/kg
Pb: ≤1 mg/kg
级别
puriss.
纯度
99-100.5% (calc. to the dried substance)
痕量阴离子
chloride (Cl-): ≤30 mg/kg
sulfate (SO42-): ≤50 mg/kg
tartrate (C4H4O62-): in accordance
oxalate (as oxalic acid): ≤100 mg/kg
干燥失重
11-13% loss on drying, 180 °C, 18 h
线性分子式
HOC(COONa)(CH2COONa)2 · 2H2O
适用性
complies for reaction against H2SO4
alkaline for reaction against litmus
complies for appearance of solution
品质说明
meets analytical specification of Ph. Eur., BP, USP, FCC, E331
安全信息
理化性质
pH值
7.5-9.0 (20 °C, 5%)
熔点
>300 °C(lit.)
描述信息
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分子图谱
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参考文献
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