Potassium Tetraoxalate Dihydrate

品牌

Supelco

CAS

6100-20-5

货号

1.01961

包装型号

25 G, certified secondary standard reference material for pH measurement; directly traceable to primary reference material from NIST/PTB pH (S) = 1.67₉ (25°C) Certipur^®

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 元 *本价格含增值税费

促销

数量

产品名称：

6100-20-5
Potassium Tetraoxalate Dihydrate
Potassium hydrogen oxalate-oxalic acid-water (1/1/2)
Oxalic acid hemipotassium salt

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
agency	complies 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℃
InChI	1S/2C2H2O4.K/c23-1(4)2(5)6;/h2(H,3,4)(H,5,6);/q;;+1/p-1
InChI key	GANDVAJEIJXBQJ-UHFFFAOYSA-M

安全信息

象形图
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
WGK	WGK 1