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 17034 accredited calibration laboratories against certified primary standard reference materials (SRM) in compliance with DIN 19266, IUPAC, NIST and Ph. Eur. Certipur® reference materials offer maximum accuracy, reliability and convenience and help avoid costly repeat analyses.
应用
Potassium hydrogen tartrate [pH(S) = 3.63
特点和优势
- The product is delivered with a comprehensive, batch-specific Certificate of Analysis showing relevant data for the quality management system.
- The pH value of this Certipur® buffer solution is measured using differential potentiometry with two platinum hydrogen electrodes against NIST & PTB primary SRMs [pH(S) = 3.63
9 / pH(S) = 3.557 (25 ℃)]. - It is a Certified Reference Material (CRM) offered in neat format.
- Intended for extremely precise calibration, qualification and monitoring of pH instruments and for testing other buffer solutions.
分析说明
pH-value (25 °C): 3.634 - 3.640
Identity: passes test
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 | C4H5KO6 |
| 分子量 | 188.18 |
| MDL编号 | MFCD00065392 |
| EC索引号 | 212-769-1 |
产品性质
| 质量水平 | 300 |
| 等级 | certified reference material |
| agency | complies with DIN 19266 |
| 产品线 | Certipur® |
| pH值(酸碱度) | 3.4-3.7 (20 ℃ in H2O, saturated solution) |
| mp | 250 ℃ (decomposition) |
| 溶解性 | 5.7 g/L |
| 堆积密度 | 720 kg/m3 |
| application(s) | environmental food and beverages general analytical industrial qc pharmaceutical |
| 格式 | neat |
| 储存温度 | 15-25℃ |
| InChI | 1S/C4H6O6.K/c5-1(3(7)8)2(6)4(9)10;/h1-2,5-6H,(H,7,8)(H,9,10);/q;+1/p-1/t1-,2-;/m1./s1 |
| InChI key | KYKNRZGSIGMXFH-ZVGUSBNCSA-M |
安全信息
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | 410.0 °F |
| 闪点(C) | 210 ℃ |
