重铬酸钠二水合物，Sodium dichromate dihydrate [SDD]；ACS reagent, ≥99.5%

图片 重铬酸钠二水合物，Sodium dichromate dihydrate [SDD]；ACS reagent, ≥99.5%
二水重铬酸钠；水合重铬酸钠；红矾钠；重铬酸钠水合物；Sodium bichromate；线性分子式: Na2Cr2O7 · 2H2O CAS号: 7789-12-0 分子量: 298.00 EC 号: 234-190-3 MDL编号: MFCD00149166 PubChem化学物质编号: 329755905
制造商品牌: 西格玛 Sigma-Aldrich
货号（SKU）: 398063
CAS号: 7789-12-0
MDL号: MFCD00149166
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说明

一般描述

Sodium dichromate dehydrate (SDD), a hexavalent chromium compound[1] is commonly used as an oxidizing agent.[2] Chromium (VI) compounds are genotoxic and group 1 IARC (International Agency for Research on Cancer) carcinogen.[3] SDD is one of the common contaminants found in drinking water. Its toxic effects and carcinogenicity has been studied.[1][3][4][5]
 

应用

Sodium dichromate dehydrate may be used in preparing Jones reagent which is employed for oxidation reactions.[6] It may be used in the oxidation of arylalkanes.[7]
 
 

属性

等级

ACS reagent

质量水平

200

检测方案

≥99.5%

形式

crystals

reaction suitability

reagent type: oxidant

杂质

≤0.005% NH4OH ppt.
≤0.005% insolubles

pH值（酸碱度）

3.5 (20 °C, 100 g/L)

mp

91 °C (lit.)

痕量阴离子

chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.01%

痕量阳离子

Al: ≤0.002%
Ca: ≤0.003%

SMILES string

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

InChI

1S/2Cr.2Na.2H2O.7O/h;;;;2*1H2;;;;;;;/q;;2*+1;;;;;;;;2*-1

InChI key

JYDRNIYTFCBIFC-UHFFFAOYSA-N

 

安全信息

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 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 1 Inhalation

储存分类代码

5.1B - Oxidizing hazardous materials

WGK

WGK 3

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 ≥ 50 | 欧洲Eur. ≥ 12 | 東京Tokyo ≥ 20 | 香港与北京 ≥ 50
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