十水合四硼酸二钠，di-Sodium tetraborate decahydrate；certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S)=9.18₀ (25°C) Certipur®

图片 十水合四硼酸二钠，di-Sodium tetraborate decahydrate；certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S)=9.18₀ (25°C) Certipur®
别名：1.01964；四硼酸钠十水合物；十水四硼酸钠；硼砂十水合物；十水合四硼酸钠；四硼酸钠水合物；Borax decahydrate, Sodium borate decahydrate；Sodium tetraborate decahydrate

Empirical Formula (Hill Notation): B4Na2O7 · 10H2O CAS号: 1303-96-4 分子量: 381.37 MDL编号: MFCD00149193 EC索引号: 215-540-4
制造商品牌: 默克 Merck , 色谱科 Supelco , 西格玛 Sigma-Aldrich
货号（SKU）: 1019640025
CAS号: 1303-96-4
MDL号: MFCD00149193
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¥2,673.81

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)=9.180 (25 °C)] is a certified secondary standard reference buffer used as a calibration buffer standard for pH instruments or pH electrodes.
 

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)=9.180 (25 °C)].
  • 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-值（25 °C）：9.180 - 9.186
同一性：通过测试
 

法律信息

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
 
 

属性

等级

certified reference material

质量水平

300

Agency

complies with DIN 19266

蒸汽压

0.213 hPa ( 20 °C)

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 °C, 47 g/L in H2O)

mp

75 °C (Elimination of water of crystallisation)

溶解性

49.74 g/L

密度

1.72 g/cm3 at 20 °C

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°C

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

Exclamation markHealth hazard
GHS07,GHS08

警示用语：

Danger

危险声明

H319 - H360FD

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

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 20 | 欧洲Eur. ≥ 16 | 東京Tokyo ≥ 5 | 香港与北京 ≥ 20
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