产品名称９/div>
1303-96-4
di-Sodium tetraborate decahydrate
Borax, Sodium biborate decahydrate, Sodium borate decahydrate
产品介绍９/div>
产品说明
一般描?/p>
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
0
(25 ?] is a certified secondary standard reference buffer used as a calibration buffer standard for pH instruments or pH electrodes.
特点和优劾/p>
- 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
0
(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): 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)分子弎/td> |
B4Na2O7 10H2O |
| 分子野/td> |
381.37 |
| MDL编号 |
MFCD00149193 |
| EC索引叶/td> |
215-540-4 |
产品性质
| 质量水平 |
300 |
| 等级 |
certified reference material |
| agency |
complies with DIN 19266 |
| 蒸汽厊/td> |
0.213 hPa ( 20 ? |
| 产品纾/td> |
Certipur? |
| 效能 |
2660 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rabbit) |
| pH?酸碱? |
9.2 (20 ? 47 g/L in H2O) |
| mp |
75 (Elimination of water of crystallisation) |
| 溶解?/td> |
49.74 g/L |
| 密度 |
1.72 g/cm3at 20 ℂ/td> |
| 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 |
15-25ℂ/td> |
| 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
| 象形国/td> |
  |
| 警示用语９/td> |
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 |
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