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Merck
CN
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安全信息

31255

Sigma-Aldrich

重铬酸钾

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.8%

别名:

红矾钾

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About This Item

线性分子式:
K2Cr2O7
CAS号:
7778-50-9
分子量:
294.18
EC 号:
231-906-6
MDL编号:
MFCD00011367
UNSPSC代码:
12352302
PubChem化学物质编号:
329753704
方案:
≥99.8%
表单:
solid

等级

ACS reagent
puriss. p.a.

Agency

USP/NF
reag. ISO
reag. Ph. Eur.

方案

≥99.8%

表单

solid

杂质

≤0.005% water insolubles

缺失

≤0.05% loss on drying, 105 °C

mp

398 °C (lit.)

痕量阴离子

chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg

痕量阳离子

Ca: ≤20 mg/kg
Cu: ≤10 mg/kg
Fe: ≤10 mg/kg
Na: ≤100 mg/kg
Pb: ≤50 mg/kg

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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相关类别

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

法规信息

危险化学品
易制爆化学品

历史批次信息供参考:

分析证书(COA)

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