性状 白色颗粒性粉末,无气味,有苦咸味,无臭,无毒。易在潮湿空气中吸收三分子水。能溶于水和甘油,不溶于醇。3.6溶于份水。33℃时溶解度最大(1:2),温度再高溶解度降低,100℃时溶于2.4份水。 密度:2.7 熔点:880℃ 沸点:1700℃ 备注: 以上描述,仅作参考,并不表示您收到的产品,与此项描述完全相符,产品的出厂标准,请参见质量标准。 质量标准 GB/T 9853-88 项目Item 分析纯 化学纯 (AR) (CP) 含量(Na2SO4)Assay,% ≥ 99.0 98.0 pH(50g/L溶液,25℃)pH 5.0-8.0 5.0-8.0 of water solution 澄清度试验Clarity 合格 合格 水不溶物Insoluble matter in water,% ≤ 0.005 0.02 灼烧失重Ignition loss,% ≤ 0.2 0.5 氯化物(Cl)Chloride,% ≤ 0.001 0.005 总氮量(N)Total nitrogen,% ≤ 0.0005 0.001 磷酸盐(PO4)Phosphate,% ≤ 0.001 0.002 钾(K)Potassium,% ≤ 0.01 -- 钙(Ca)Calcium,% ≤ 0.002 0.005 铁(Fe)Iron,% ≤ 0.0005 0.0015 重金属(以Pb计)Heavy metals,% ≤ 0.0005 0.002
ACS级 项目名称 ACS Grade 含量(Na2SO4)Assay ≥99.0% pH(5%溶液,25.0℃)pH of a 5% solution at 25.0℃ 5.2-9.2 水不溶物Insoluble matter ≤0.001% 灼烧残渣Residue after ignition ≤0.5% 氯化物(Cl)Chloride(Cl) ≤0.001% 含氮化合物(以N计)Nitrogen compounds ≤5ppm 磷酸盐(PO4)Phosphate ≤0.001% 重金属(以Pb计)Heavy metals(as Pb) ≤5ppm 铁(Fe)Iron(Fe) ≤0.001% 钙(Ca)Calcium ≤0.01% 镁(Mg)Magnesium ≤0.005% 钾(K)Potassium ≤0.01% 萃取-浓缩的适应性实验Extraction-concentration suitability Passes test
品级Grade 色谱级 (grade for HPLC,≥99.0% (T)) 外观Appearance White Powder 纯度Purity ≥99.0% (T) 非溶性物质insoluble matter, passes filter test 水溶性solubility H2O: soluble1 M at 20 °C, clear, colorless λ 10 % in H2O UV absorption λ: 220 nm A: ≤0.1 λ: 230 nm A: ≤0.05 λ: 240 nm A: ≤0.03 λ: 250 nm A: ≤0.02 λ: 500 nm A: ≤0.02
99.99% metals basis:
外观Appearance White Powder and/or Chunks 纯度Purity ≥99.99% Based on Trace Metals Impurities 硫酸根Gravimetric Analysis(% SO4) 66.3 - 69.0 % , With Barium Chloride ICP Major Analysis Confirmed 总痕量金属杂质total metallic impurities ≤100.0 ppm
99.999% metals basis:
外观Appearance White Powder and/or Chunks 纯度Purity ≥99.999% Based on Trace Metals Impurities 硫酸根Gravimetric Analysis(% SO4) 66.3 - 69.0 % , With Barium Chloride ICP Major Analysis Confirmed 总痕量金属杂质total metallic impurities ≤10.0 ppm
品级Grade 植物细胞培养级 (for plant cell culture, ≥99.0%) 外观appearance white to off-white powder 水溶性solubility clear colorless solution at 10 g plus 100 ml water 干燥损失loss on drying ≤0.5% 纯度Purity ≥99.0% (T) 植物细胞培养试验plant cell culture test passes
品级Grade 药典级 (suitable for use as Ph Eur,BP,USP) 含量assay 99.0-100.5% (calc. to the dried substance) 酸度或者碱度acidity or alkalinity, complies 残留溶剂residual solvents, complies 重金属heavy metals (as Pb) ≤0.001% 游离碱free alkali (as NaOH) ≤0.04% 游离酸free acid (as H2SO4) ≤0.05% 干燥损失loss on drying, 130 °C ≤0.5% 氯chloride (Cl-): ≤200 ppm 砷As: ≤2 ppm 钙Ca: ≤50 ppm 铁Fe: ≤50 ppm 镁Mg: ≤50 ppm 锌Zn: ≤300 ppm 溶液外观appearance of solution complies 贮存 密封干燥保存。 用途 医药上用作盐析剂、聚凝剂,也用于造纸、玻璃、印染、合成纤维、制革等工业。 联合国编号 Risk: Safety : S24/25- Hazard :
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