| 品牌 |  |
| 产品名称 |
柠檬酸钙 ： Calcium citrate tribasic tetrahydrate ——【产品编号：SIGMA-21118】
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| CAS编号 | 5785-44-4 |
| 别名 | 柠檬酸三钙四水合物，枸橼酸钙，枸橼酸三钙四水合物 |
| 级别 | 生化级 |
| 纯度&分析 | BioUltra, ≥98.0% (calc. on dry substance, KT) |
| Tips | BSZH品质推荐：SIGMA-ALDRICH 进口高等级试剂，多重遴选，国际标准严苛测试，全球生物化学产品质量标杆，满足用户更高应用要求。 使用SIGMA-ALDRICH品质优异、表现卓越的试剂类产品，将有助于使您的研究项目更早获益。 |
| 分子式 | Ca3(C6H5O7)2 · 4H2O |
| 分子量 | 570.49 |
| 储存条件 | 常温避光保存。 |
| 性质 | ~InChI Key LNIZKKFWMDARJV-UHFFFAOYSA-H
product line BioUltra
assay ≥98.0% (calc. on dry substance, KT)
impurities Insoluble matter, passes filter test
loss 10-14% loss on drying, 180°C, 4 h
solubility 0.1 M HCl: soluble0.01 M at 20 °C, clear, colorless
anion traces chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤100 mg/kg
cation traces As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤50 mg/kg
Hg: ≤0.1 mg/kg
K: ≤500 mg/kg
Li: ≤5 mg/kg
Mg: ≤1000 mg/kg
Mn: ≤50 mg/kg
Mo: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤1 mg/kg
Sr: ≤100 mg/kg
Zn: ≤5 mg/kg
λ 0.01 M in 0.1 M HCl
UV absorption λ: 260 nm Amax: 0.04
λ: 280 nm Amax: 0.03
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| 原产地 | 美国 |
| 描述 | ~APPEARANCE (COLOR) White to Faint Beige
APPEARANCE (FORM) Powder
TITRATION (KT) EDTA 0.1M 98.0 - 100.5 % (calc. on dry substance)
LOSS ON DRYING 10 - 14 %
METAL TRACE ANALYSIS (ICP) CORRESPONDS TO REQUIREMENTS
BARIUM (ICP) ≤ 5 mg/kg
BISMUTH (ICP) ≤ 5 mg/kg
CADMIUM (ICP) ≤ 5 mg/kg
COBALT (ICP) ≤ 5 mg/kg
CHROMIUM (ICP) ≤ 5 mg/kg
COPPER (ICP) ≤ 5 mg/kg
IRON (ICP) ≤ 50 mg/kg
POTASSIUM (ICP) ≤ 500 mg/kg
LITHIUM (ICP) ≤ 5 mg/kg
MAGNESIUM (ICP) ≤ 1000 mg/kg
MANGANESE (ICP) ≤ 50 mg/kg
MOLYBDENUM (ICP) ≤ 5 mg/kg
SODIUM (ICP) ≤ 100 mg/kg
NICKEL (ICP) ≤ 5 mg/kg
LEAD (ICP) ≤ 1 mg/kg
STRONTIUM (ICP) ≤ 100 mg/kg
ZINC (ICP) ≤ 5 mg/kg
ARSENIC TRACES (MHS-AAS) ≤ 0.1 mg/kg
MERCURY TRACES (AFS) ≤ 100 ug/kg
TOTAL SULFUR AS SO4 (ICP) ≤ 100 mg/kg
CHLORIDE (CL) ≤ 50 mg/kg
SOLUBILITY (METHOD) 0.01M 0.1 M HCl
APPEARANCE (SOLUTION) CLEAR COLORLESS
RESIDUE (FILTER TEST) NO RESIDUE
UV - ABS. AT 260 NM ≤ 0.04
UV - ABS. AT 280 NM ≤ 0.03
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| 供货状态 | True |
| 参考文献 | N/A |
| 类型 | BSZH 生物化学研究 |
| 安全信息 | ~个人防护装备 Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
RIDADR NONH for all modes of transport
WGK德国 1
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