| 品牌 |  |
| 产品名称 |
碳酸氢钠 ： Sodium bicarbonate ——【产品编号：SIGMA-ALDRICH-S6014】
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| CAS编号 | 144-55-8 |
| 别名 | 重碳酸钠，小苏打，Carbonicacid sodium salt，sodium bicarbonate，bakingsoda，bicarbonatede sodium，bicarbonateofsoda |
| 级别 | ACS 级 |
| 纯度&分析 | 99.7-100.3%，ACS reagent |
| Tips | 此产品适用于科学研究、药用辅料、规模化生产等。 |
| 分子式 | NaHCO3 |
| 分子量 | 84.01 |
| 储存条件 | 常温避光保存。 |
| 性质 |
|
grade |
ACS reagent |
|
assay |
99.7-100.3% |
|
total impurities |
≤0.015% Insoluble matter |
|
pKa (25 °C) |
(1) 6.37, (2) 10.25 (carbonic acid) |
|
anion traces |
chloride (Cl-): ≤0.003% |
|
|
phosphate (PO43-): ≤0.001% |
|
|
sulfur compounds (as SO42-): ≤0.003% |
|
cation traces |
Ca: ≤0.02% |
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Fe: ≤0.001% |
|
|
K: ≤0.005% |
|
|
Mg: ≤0.005% |
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NH4+: ≤5 ppm |
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heavy metals (as Pb): ≤5 ppm |
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| 原产地 | 美国 |
| 描述 |
Application
Sodium bicarbonate is broadly used as a physiological buffer in cell culture applications. The pKa for bicarbonate <-> carbonic acid reaction is 6.4 The pKa for bicarbonate <-> carbonate reaction is 10.3. Sodum bicarbonate has two pKas, 6.4 and 10.3. It is broadly used as an physiological buffer in in vitro applications.
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| 供货状态 | True |
| 参考文献 |
Merck 14,8583
|
| 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 |
|
WGK德国 |
1 |
|
RTECS |
VZ0950000 |
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