产品介绍：
产品说明
一般描述
Di-sodium oxalate 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 titer determinations in redox titrations, according to reagents chapters of USP and Ph. Eur.
特点和优势
- Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
- Certified reference material according to ISO 17034
- High-purity material traceable to NIST standard reference materials
- Qualified in a DIN EN ISO/IEC 17025 accredited laboratory
- In accordance with the chapter reagents of USP and Ph. Eur
- High-quality offering accurate titer determinations
- Accompanied by a certificate of analysis (CoA)
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
| 经验(实验)分子式 | C2Na2O4 |
| 分子量 | 134.00 |
| MDL编号 | MFCD00012465 |
| EC索引号 | 200-550-3 |
产品性质
| 质量水平 | 300 |
| agency | ISO 17025 reag. USP |
| 形式 | solid |
| 效能 | 375 mg/kg LD50, oral (Rat) |
| technique(s) | titration: suitable |
| pH值(酸碱度) | 8 (20 ℃, 30 g/L in H2O) |
| mp | 250-270 ℃ (decomposition) |
| 密度 | 2.27 g/cm3 at 20 ℃ |
| 堆积密度 | 600 kg/m3 |
| 储存温度 | 15-25℃ |
| InChI | 1S/C2H2O4.2Na/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2 |
| InChI key | ZNCPFRVNHGOPAG-UHFFFAOYSA-L |
安全信息
| 象形图 |  |
| 警示用语： | Warning |
| 危险声明 | H302 + H312 |
| 预防措施声明 | P264 - P270 - P280 - P301 + P312 - P302 + P352 + P312 - P362 + P364 |
| 危险分类 | Acute Tox. 4 Dermal - Acute Tox. 4 Oral |
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
