项目 分析纯 化学纯 (AR) (CP) pH(50g/L,25℃) 6.0~7.0 6.0~7.0 澄清度试验 合格 合格 含量Assay ≥98.0% 97.0% 硫酸盐Sulfate ≤0.005% 0.01% 氯化物(Cl)Chloride ≤0.001% 0.004% 重金属(以Pb计)Heavy metals ≤0.0002% 0.0004% 铁(Fe)Iron ≤0.0005% 0.001% 灼烧残渣Ignition residue ≤0.01% 0.04% 品级Grade 超纯级 (ultra pure) 含量assay ≥99.0% (calc. based on dry substance, NT) 不溶物insoluble matter, passes filter test 水分water ≤2% 灼烧残渣Residue on ignition (900°C) ≤0.1% (as SO4) pH 5.5-7.5 (25 °C, 1 M in H2O) 熔点Melting point 119-121 °C 痕量阴离子anion traces by ICP-MS 氯chloride (Cl-): ≤50 ppm 硫酸根sulfate (SO42-): ≤50 ppm 痕量阳离子cation traces Al: ≤5 ppm As: ≤0.1 ppm Ba: ≤5 ppm Bi: ≤5 ppm Ca: ≤10 ppm Cd: ≤5 ppm Co: ≤5 ppm Cr: ≤5 ppm Cu: ≤5 ppm Fe: ≤5 ppm K: ≤50 ppm Li: ≤5 ppm Mg: ≤5 ppm Mn: ≤5 ppm Mo: ≤5 ppm Na: ≤50 ppm Ni: ≤5 ppm Pb: ≤5 ppm Sr: ≤5 ppm Zn: ≤5 ppm λ 1 M in H2O 紫外吸收UV absorption λ: 260 nm A: ≤0.01 λ: 280 nm A: ≤0.01
≥99.995% (metals basis): 外观Appearance White Moist Crystals 红外光谱鉴别Infrared spectrometry Conforms to Structure 纯度Purity ≥99.995% Based On Trace Metals Analysis 痕量金属分析Trace Metal Analysis 50ppm by ICP Atomic emission 总金属杂质Total Metallic Impurities (Al、As、Ba、Na)
品级Grade 色谱纯 (for HPLC,≥99.0%) 纯度Purity ≥99.0% (dried material, NT) 水分 water ≤2% pH 5.5-7.5 (20 °C, 10% in H2O) 熔点Melting point 119-121 °C 水溶性solubility H2O: soluble0.1 g/mL at 25 °C, clear, colorless λ 10 % in H2O 紫外吸光值UV absorption λ: 250 nm A: ≤0.05 λ: 260 nm A: ≤0.04 λ: 270 nm A: ≤0.03 λ: 280 nm A: ≤0.02 λ: 500 nm A: ≤0.02 for RP gradient test corresponds to standard for filter test corresponds to standard 品级Grade LC-MS专用 (eluent additive for LC-MS,≥99.0%) 纯度Purity ≥99.0% (dried material, NT) 不溶物insoluble matter, passes filter test 水分water ≤2% 灼烧残渣Residue on ignition (900°C) ≤0.1% (as SO4) pH 5.5-7.5 (25 °C, 1 M in H2O) 熔点Melting point 119-121 °C 痕量阴离子anion traces by ICP-MS 氯chloride (Cl-): ≤50 ppm 硫酸根sulfate (SO42-): ≤50 ppm 痕量阳离子cation traces by ICP-MS Al: ≤1 ppm As: ≤0.1 ppm Ba: ≤1 ppm Bi: ≤1 ppm Ca: ≤5 ppm Cd: ≤1 ppm Co: ≤1 ppm Cr: ≤1 ppm Cu: ≤1 ppm Fe: ≤1 ppm K: ≤5 ppm Li: ≤1 ppm Mg: ≤1 ppm Mn: ≤1 ppm Mo: ≤1 ppm Na: ≤5 ppm Ni: ≤1 ppm Pb: ≤1 ppm Sr: ≤1 ppm Zn: ≤1 ppm suitability in accordance for LC-MS 品级Grade 质谱专用 (for mass spectroscopy, ≥99.0%) 纯度Purity ≥99.0% (dried material, NT) 不溶物insoluble matter, passes filter test 水分water ≤2% 灼烧残渣Residue on ignition (900°C) ≤0.1% (as SO4) pH 5.5-7.5 (25 °C, 1 M in H2O) 熔点Melting point 119-121 °C 痕量阴离子anion traces by ICP-MS 氯chloride (Cl-): ≤50 ppm 硫酸根sulfate (SO42-): ≤50 ppm 痕量阳离子cation traces by ICP-MS Al: ≤1 ppm As: ≤0.1 ppm Ba: ≤1 ppm Bi: ≤1 ppm Ca: ≤5 ppm Cd: ≤1 ppm Co: ≤1 ppm Cr: ≤1 ppm Cu: ≤1 ppm Fe: ≤1 ppm K: ≤5 ppm Li: ≤1 ppm Mg: ≤1 ppm Mn: ≤1 ppm Mo: ≤1 ppm Na: ≤5 ppm Ni: ≤1 ppm Pb: ≤1 ppm Sr: ≤1 ppm Zn: ≤1 ppm λ 1 M in H2O 紫外吸收UV absorption λ: 260 nm A: ≤0.01 λ: 280 nm A: ≤0.01
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