半岛bd体育手机客户端 说明
一般描述
Sodium carbonate is a volumetric standard manufactured under stringent conditions and measured with the highest possible precision. Its mass fraction is determined by potentiometric titration, and it is qualified in a DIN EN ISO/IEC 17025 accredited laboratory.
应用
It is used as a certified reference material (CRM) for the standardization of volumetric solutions in acidimetric titrations, according to USP and Ph. Eur.
生化/生理作用
缓冲剂组分，可用于除去外周膜蛋白。
特点和优势
包装
SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals
法律信息
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
| 线性分子式 | Na2CO3 |
| 分子量 | 105.99 |
| Beilstein | 4154566 |
| MDL编号 | MFCD00003494 |
| EC索引号 | 207-838-8 |
半岛bd体育手机客户端 性质
| 质量水平 | 300 |
| agency | ISO 17025 reag. Ph. Eur. reag. USP |
| 形式 | solid |
| 效能 | 4090 mg/kg LD50, oral (Rat) |
| technique(s) | titration: suitable |
| pH值(酸碱度) | 11.16 (25 ℃, 4 g/L in H2O) |
| mp | 851 ℃ (lit.) |
| 溶解性 | 212.5 g/L |
| 密度 | 2.53 g/cm3at 20 ℃ |
| 堆积密度 | 1100 kg/m3 |
| 储存温度 | 15-25℃ |
| SMILES string | O=C(O[Na])O[Na] |
| InChI | 1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2 |
| InChI key | CDBYLPFSWZWCQE-UHFFFAOYSA-L |
安全信息
| 象形图 |  |
| 警示用语： | Warning |
| 危险声明 | H319 |
| 预防措施声明 | P264 - P280 - P305 + P351 + P338 - P337 + P313 |
| 危险分类 | Eye Irrit. 2 |
| 储存分类代码 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
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