产品说明
一般描述
Certipur® certified secondary standard reference buffers are used to precisely calibrate and monitor pH measurement instruments and buffer solutions. They are quality controlled and qualified in our ISO/IEC 17025 and ISO 17034 accredited calibration laboratories against certified primary standard reference materials (SRM) in compliance with DIN 19266, IUPAC, NIST, Ph. Eur and USP. Certipur® reference materials offer maximum accuracy, reliability and convenience and help avoid costly repeat analyses.
应用
Potassium hydrogen phthalate [KHP; pH(S) = 4.00
特点和优势
- The product is delivered with a comprehensive, batch-specific Certificate of Analysis showing the relevant data for the quality management system.
- The pH value of this Certipur® buffer solution is qualified using differential potentiometry with two platinum hydrogen electrodes against NIST & PTB primary reference materials [pH(S) = 4.00
5 (25 ℃)]. - This buffer standard has a guaranteed shelf life of 4 years.
- Potassium hydrogen phthalate buffer is a Certified Reference Material (CRM) offered in neat format. Solution of this standard can be prepared in-house per instructions in European Pharmacopoeia (Ph. Eur. 2.2.3).
- Intended for extremely precise calibration, qualification and monitoring of pH instruments and routine assessment of their performance.
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 | C8H5KO4 |
| 分子量 | 204.22 |
| MDL编号 | MFCD00013070 |
| EC索引号 | 212-889-4 |
产品性质
| 质量水平 | 300 |
| 等级 | certified reference material |
| agency | complies with DIN 19266 |
| 产品线 | Certipur® |
| 效能 | >3200 mg/kg LD50, oral (Rat) |
| pH值(酸碱度) | 4.0 (20 ℃, 50 g/L in H2O) |
| mp | 295-300 ℃ |
| 溶解性 | 80 g/L |
| 密度 | 1.636 g/cm3 |
| 堆积密度 | 900 kg/m3 |
| application(s) | environmental food and beverages general analytical industrial qc pharmaceutical |
| 格式 | neat |
| 储存温度 | 15-25℃ |
| InChI | 1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1 |
| InChI key | IWZKICVEHNUQTL-UHFFFAOYSA-M |
安全信息
| 储存分类代码 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | 387.1 °F - Pensky-Martens closed cup |
| 闪点(C) | 197.3 ℃ - Pensky-Martens closed cup |
