半岛bd体育手机客户端 说明
一般描述
Absorbance (1.0 M, H2O, 260 nm):≤0.1.
Widely used as a biological buffer (absorbance: <0.1 at 260 nm, 1.0 M, H2O). A 1.0 M solution in H2O has a pH range of 3.5-5.0 and a pKaof 8.3 at 20°C.
Useful in the pH range of 7.0-9.0. Has a pKaof 8.1 at 25°C.
应用
所有缓冲液的pH值都与温度和浓度有关。对于Tris缓冲液，降温每℃其pH值约增加0.03单位，每10倍稀释其pH降低0.03-0.05单位。
对于精确的应用，请使用带有玻璃/甘汞组合电极并仔细校准过的pH计。
包装
250, 500 g in Glass bottle
1 kg in Glass bottle
警告
Toxicity: Standard Handling (A)
法律信息
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Trizma is a registered trademark of sigma-aldrich Co. LLC
ULTROL is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
| 线性分子式 | NH2C(CH2OH)3· HCl |
| 分子量 | 157.60 |
| Beilstein | 3675235 |
| MDL编号 | MFCD00012590 |
半岛bd体育手机客户端 性质
| 质量水平 | 100 |
| 测定 | ≥99% (titration) |
| 形式 | solid |
| manufacturer/tradename | Calbiochem? |
| 储存条件 | OK to freeze |
| 颜色 | white |
| 有效pH范围 | 7.0 - 9.0 |
| pKa (25 ℃) | 8.1 |
| 溶解性 | water: 500 mg/mL |
| 痕量阳离子 | heavy metals: ≤5 ppm |
| 运输 | ambient |
| 储存温度 | 15-25℃ |
| SMILES string | Cl.NC(CO)(CO)CO |
| InChI | 1S/C4H11NO3.ClH/c5-4(1-6,2-7)3-8;/h6-8H,1-3,5H2;1H |
| InChI key | QKNYBSVHEMOAJP-UHFFFAOYSA-N |
安全信息
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
Sigma-Aldrich
m.cnreagent.com
