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Merck
CN

42019

Supelco

重铬酸钾

reference material for titrimetry, certified by BAM, >99.5%

别名:

红矾钾

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About This Item

线性分子式:
K2Cr2O7
CAS号:
分子量:
294.18
EC 号:
MDL编号:
UNSPSC代码:
41116107
PubChem化学物质编号:
NACRES:
NA.24

等级

reference material

质量水平

方案

>99.5%

技术

titration: suitable

mp

398 °C (lit.)

包装形式

neat

SMILES字符串

[K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O

InChI

1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1

InChI key

KMUONIBRACKNSN-UHFFFAOYSA-N

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一般描述

重铬酸钾是一种在严格条件下生产的氧化标准品,并以尽可能高的精度进行测量。其含量测定和均匀性评估使用体积氧化还原滴定作为主要分析方法进行。

应用

它可作为标准物质,用于在氧化还原滴定中标定滴定溶液。

特点和优势

  • 以安全洁净的玻璃瓶形式提供,以确保其在打开前的整个保质期内保持稳定性。
  • 可追溯至 NIST SRM
  • 高品质材料,可提供精准的滴定测定
  • 随附分析证书(CoA)

分析说明

精确浓度、有效期、可追踪性以及认证的详细信息请见每个包装内的证书和认证报告。含量和有效期见标签。

警示用语:

Danger

危险分类

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 1 Inhalation - STOT SE 3

靶器官

Cardio-vascular system, Respiratory system

储存分类代码

5.1B - Oxidizing hazardous materials

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

法规信息

易制爆化学品
危险化学品

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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访问文档库

Raman spectroscopic study of oxidation of aniline and N-methylaniline with dichromate
Mazeikiene R, et al.
Journal of Molecular Structure, 1139, 333-337 (2017)
Changes in aquatic toxicity of potassium dichromate as a function of water quality parameters
Kikuchi M, et al.
Chemosphere, 170, 113-117 (2017)
Fu-Jun Liu et al.
Toxicological sciences : an official journal of the Society of Toxicology, 110(2), 307-318 (2009-06-03)
Werner syndrome is a premature aging disorder characterized by cancer predisposition that is caused by loss of the Werner syndrome protein (WRN) helicase/exonuclease DNA repair protein. Hexavalent chromium is an environmental carcinogen and genotoxicant that is associated with respiratory cancers
Athanasia G Tekerlekopoulou et al.
Water research, 47(2), 623-636 (2012-11-28)
The kinetics of hexavalent chromium bio-reduction in draw-fill suspended and attached growth reactors was examined using sugar as substrate and indigenous microorganisms from the industrial sludge of the Hellenic Aerospace Industry. Initially, experiments in suspended growth batch reactors for Cr
B Duarte et al.
Ecotoxicology and environmental safety, 83, 1-7 (2012-07-13)
The in situ reduction of Cr (VI) to its less toxic form Cr (III) may be a useful detoxification mechanism for phytoremediation. Using a hydroponics mesocosmos approach, we evaluated the ability of Halimione portulacoides to reduce and uptake Cr (VI)

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