GB/T 10705-89
项目Item 分析纯 (AR) 化学纯 (CP)
含量(C7H6O6S2H2O)Assay,% ≥ 99.0 98.0(HPLC)
对铁灵敏度Sensitivity to iron 合格 合格
澄清度试验Clarity 合格 合格
水不溶物Insoluble matter in water,% ≤ 0.005 0.01
灼烧残渣(以硫酸盐计)Ignition residue,% ≤ 0.02 0.05
氯化物(Cl)Chloride,% ≤ 0.002 0.005
硫酸盐(SO4)Sulfate,% ≤ 0.1 0.5
铁(Fe)Iron,% ≤ 0.0001 0.0005
重金属(以Pb计)Heavy metals,% ≤ 0.005 0.001
水杨酸(HOC6H4(OOH)Salicylic acid ≤ 0.02 0.2
ACS级
项目名称Item ACS Grade
含量(HOC6H3(COOH)SO3H·2H2O)Assay 99.0-101.0%
水不溶物Insoluble matter ≤0.02%
灼烧残渣Residue after ignition ≤0.1%
氯化物(Cl)Chloride(Cl) ≤0.001%
水杨酸(HOC6H4COOH)Salicylic acid ≤0.04%
硫酸盐(SO4)Sulfate ≤0.02%
重金属(以Pb计)Heavy metals(as Pb) ≤0.002%
铁(Fe)Iron(Fe) ≤0.001%
品级Grade 电泳专用 (for electrophoresis, ≥99%)
外观Appearance 白色粉末
红外光谱Infrared spectrum Conforms
纯度Purity ≥99.0% (HPLC)
不溶物Insoluble matter ≤0.02 %
氯Chloride Content ≤0.001 %
硫酸盐Sulfate ≤0.02 %
重金属Heavy Metal ≤0.002 %
铁Iron (Fe) ≤0.001 %
水杨酸Salicylic acid ≤0.04 %
电泳固定试验Suitable for fixing solution pass test
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