产品说明
一般描述
Iron(II) ethylenediammonium sulfate volumetric standard is 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 finds its use as a certified reference material (CRM) for the standardization of volumetric solutions in redox titrations, according to 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 SRMs
- 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
| 线性分子式 | (CH2NH3)2SO4 · FeSO4 · 4H2O |
| 分子量 | 382.15 |
| EC索引号 | 264-357-6 |
产品性质
| 质量水平 | 300 |
| agency | ISO 17025 reag. Ph. Eur. |
| 形式 | solid |
| technique(s) | titration: suitable |
| pH值(酸碱度) | 4.0 (25 ℃, 100 g/L in H2O) |
| 溶解性 | 170 g/L |
| 堆积密度 | 600 kg/m3 |
| 储存温度 | 15-25℃ |
安全信息
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 2 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
