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Potassium Tetraoxalate Dihydrate

品牌
Supelco
CAS
6100-20-5
货号
1.01961
规格纯度
certified secondary standard reference material for pH measurement; directly traceable to primary reference material from NIST/PTB pH (S) = 1.679 (25°C) Certipur®
参考价格
1826.13 *本价格含增值税费
促销
数量
-+
产品介绍:

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 tetraoxalate dihydrate [pH (S) = 1.67₉ (25 ℃)] is a certified secondary standard reference material 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 qualified using differential potentiometry with two platinum hydrogen electrodes against NIST & PTB primary reference materials [pH (S) = 1.679 (25 ℃)].
  • This buffer standard has a guaranteed shelf life of 4 years.
  • Potassium tetraoxalate dihydrate buffer is a Certified Reference Material (CRM) offered in neat format. Solution of this standard is prepared in-house following 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.

分析说明

pH-value (25 °C): 1.674 - 1.683

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C4H3KO8 · 2H2O
分子量254.19
MDL编号MFCD00150443
EC索引号204-874-6

产品性质

质量水平300
等级certified reference material
agencycomplies with DIN 19266
产品线Certipur®
pH值(酸碱度)1.7 (25 ℃, 12.6 g/L in H2O)
溶解性 25 g/L
密度1.84 g/cm3 at 20 ℃
堆积密度860 kg/m3
application(s)environmental
food and beverages
general analytical
industrial qc
pharmaceutical
格式neat
储存温度15-25℃
InChI1S/2C2H2O4.K/c2*3-1(4)2(5)6;/h2*(H,3,4)(H,5,6);/q;;+1/p-1
InChI keyGANDVAJEIJXBQJ-UHFFFAOYSA-M

安全信息

象形图GHS07
警示用语:Warning
危险声明H302 + H312 - H319
预防措施声明P264 - P270 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338
危险分类Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2
储存分类代码11 - Combustible Solids
WGKWGK 1

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