Name | Specifications | Packing | Price | Delivery |
Betaine | ≥98% | 10g | RMB 297 | 现货 |
Betaine | 99%,超纯级 | 25g | RMB 418 | Consulting service |
Betaine | 99%,超纯级 | 100g | RMB 1375 | Consulting service |
Betaine | 99%,超纯级 | 500g | RMB 5445 | Consulting service |
Betaine | 分析标准品,≥99% | 100mg | RMB 253 | Consulting service |
Betaine | CP | 250g | RMB 88 | Consulting service |
Betaine | CP | 1kg | RMB 319 | Consulting service |
Betaine | BC | 250g | RMB 99 | Consulting service |
Betaine | BC | 1kg | RMB 385 | Consulting service |
项目 化学纯
(CP)
外观Appearance 白色或淡黄色晶体粉末
含量assay(%) ≥98%
干燥失重Loss on Drying (%) ≤1%
灼烧残渣Residue on Ignition (%) ≤1.0%
重金属Heavy Metals(以Pb计)(%) <0.001
砷(As)(%) <0.0002
品级Grade 超纯级
(≥99.0% (NT),Ultra pure)
含量assay ≥99.0% (NT)
不溶物insoluble matters, passes filter test
甲醇溶解试验solubility in methanol 合格,1 M at 20 °C, 无色透明
氯chloride (Cl-): ≤200 mg/kg
硫酸根sulfate (SO42-): ≤200 mg/kg
痕量阳离子cation traces by ICP Atomic emission
Ca: ≤10 ppm
Cd: ≤5 ppm
Co: ≤5 ppm
Cr: ≤5 ppm
Cu: ≤5 ppm
Fe: ≤5 ppm
K: ≤50 ppm
Mg: ≤5 ppm
Mn: ≤5 ppm
Na: ≤50 ppm
Ni: ≤5 ppm
Pb: ≤5 ppm
Zn: ≤5 ppm
UV absorbance
A1M/260 nm, methanol ≤0.08
A1M/280 nm, methanol ≤0.05
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