产品介绍：
产品说明
一般描述
Benzoic acid is a volumetric standard produced under rigorous conditions and qualified 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 alkalimetric titrations, following 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
- Measured 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 | C7H6O2 |
| 分子量 | 122.12 |
| EC索引号 | 200-618-2 |
产品性质
| 质量水平 | 300 |
| agency | ISO 17025 reag. Ph. Eur. reag. USP |
| 蒸汽压 | 0.001 hPa ( 20 ℃) |
| 形式 | solid |
| 自燃温度 | 570 ℃ |
| 效能 | 1700 mg/kg LD50, oral (Rat) >5000 mg/kg LD50, skin (Rabbit) |
| technique(s) | titration: suitable |
| pH值(酸碱度) | 2.5-3.5 (20 ℃ in H2O, saturated solution) |
| bp | 249 ℃/1013 hPa |
| mp | 121-123 ℃ |
| 转变温度 | flash point 121 ℃ |
| 溶解性 | 2.9 g/L |
| 密度 | 1.321 g/cm3 at 20 ℃ |
| 堆积密度 | 500 kg/m3 |
| 储存温度 | 15-25℃ |
| InChI | 1S/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9) |
| InChI key | WPYMKLBDIGXBTP-UHFFFAOYSA-N |
安全信息
| 象形图 |   |
| 警示用语： | Danger |
| 危险声明 | H315 - H318 - H372 |
| 预防措施声明 | P260 - P264 - P280 - P302 + P352 - P305 + P351 + P338 - P314 |
| 危险分类 | Eye Dam. 1 - Skin Irrit. 2 - STOT RE 1 Inhalation |
| 靶器官 | Lungs |
| 储存分类代码 | 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects |
| WGK | WGK 1 |
