398063
重铬酸钠 二水合物
ACS reagent, ≥99.5%
别名:
红矾钠
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关于此项目
线性分子式:
Na2Cr2O7 · 2H2O
化学文摘社编号:
分子量:
298.00
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
234-190-3
MDL number:
Assay:
≥99.5%
Grade:
ACS reagent
Form:
crystals
grade
ACS reagent
Quality Segment
assay
≥99.5%
form
crystals
reaction suitability
reagent type: oxidant
impurities
≤0.005% NH4OH ppt., ≤0.005% insolubles
pH
3.5 (20 °C, 100 g/L)
mp
91 °C (lit.)
anion traces
chloride (Cl-): ≤0.005%, sulfate (SO42-): ≤0.01%
cation traces
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
General description
Sodium dichromate dehydrate (SDD), a hexavalent chromium compound is commonly used as an oxidizing agent. Chromium (VI) compounds are genotoxic and group 1 IARC (International Agency for Research on Cancer) carcinogen. SDD is one of the common contaminants found in drinking water. Its toxic effects and carcinogenicity has been studied.
Application
Sodium dichromate dehydrate may be used in preparing Jones reagent which is employed for oxidation reactions. It may be used in the oxidation of arylalkanes.
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警示词
Danger
Hazard Classifications
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
存储类别
5.1B - Oxidizing hazardous materials
WGK
WGK 3
闪点 (F)
Not applicable
闪点 (°C)
Not applicable