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, Ph. Eur and USP. Certipur® reference materials offer maximum accuracy, reliability and convenience and help avoid costly repeat analyses.
应用
di-Sodium tetraborate decahydrate [pH(S)=9.18
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 measured using differential potentiometry with two platinum hydrogen electrodes against NIST & PTB primary SRMs [pH(S)=9.18
- 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): 9.180 - 9.186
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 | B4Na2O7 · 10H2O |
| 分子量 | 381.37 |
| MDL编号 | MFCD00149193 |
| EC索引号 | 215-540-4 |
产品性质
| 质量水平 | 300 |
| 等级 | certified reference material |
| agency | complies with DIN 19266 |
| 蒸汽压 | 0.213 hPa ( 20 ℃) |
| 产品线 | Certipur® |
| 效能 | 2660 mg/kg LD50, oral (Rat) >2000 mg/kg LD50, skin (Rabbit) |
| pH值(酸碱度) | 9.2 (20 ℃, 47 g/L in H2O) |
| mp | 75 ℃ (Elimination of water of crystallisation) |
| 溶解性 | 49.74 g/L |
| 密度 | 1.72 g/cm3 at 20 ℃ |
| 堆积密度 | 750 kg/m3 |
| application(s) | environmental food and beverages general analytical industrial qc pharmaceutical |
| 格式 | neat |
| 储存温度 | 15-25℃ |
| InChI | 1S/B4O7.2Na.10H2O/c5-1-9-3(7)11-4(8)10-2-6;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;; |
| InChI key | OJPFLODMGUZMKD-UHFFFAOYSA-N |
安全信息
| 象形图 |   |
| 警示用语： | Danger |
| 危险声明 | H319 - H360FD |
| 预防措施声明 | P201 - P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313 |
| 危险分类 | Eye Irrit. 2 - Repr. 1B |
| 储存分类代码 | 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
