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216615

铬酸钾

Name: 铬酸钾
Brand: SIGALD

ACS reagent, ≥99.0%

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关于此项目

线性分子式:

K₂CrO₄

化学文摘社编号:

7789-00-6

分子量:

194.19

NACRES:

NB.24

PubChem Substance ID:

329752190

UNSPSC Code:

12352300

EC Number:

232-140-5

MDL number:

MFCD00011368

Assay:

≥99.0%

Grade:

ACS reagent

Form:

crystals

Solubility:

water: soluble (39.4 g/l (86 °F / 30 °C), 637 g/l (68 °F / 20 °C))

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属性

grade

ACS reagent

Quality Level

200

vapor density

6.7 (vs air)

assay

≥99.0%

form

crystals

impurities

≤0.005% insolubles

pH

8.6-9.8 (25 °C, 5%)

mp

971 °C (lit.)

solubility

water: soluble (39.4 g/l (86 °F / 30 °C), 637 g/l (68 °F / 20 °C))

anion traces

chloride (Cl^-): ≤0.005%, sulfate (SO₄^2-): ≤0.03%

cation traces

Ca: ≤0.005%, Na: ≤0.02%

SMILES string

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

InChI

1S/Cr.2K.4O/q;2*+1;;;2*-1

InChI key

XMXNVYPJWBTAHN-UHFFFAOYSA-N

说明

General description

铬酸钾（K₂CrO₄）是一种无机固体化合物。它主要用作有机化合物合成中的氧化剂。

Application

铬酸钾可作为氧化剂用于：

使用硫酸四丁基氢铵催化剂将伯、仲醇转化为醛、酮类。

铬酸钾也用于：

通过与硫酸铁(II)反应制备磁性活性化合物。
作为伯烯丙基和苯基卤化物转化为醛的试剂。

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pictograms

GHS08,GHS07,GHS09

signalword

Danger

hcodes

H315,H317,H319,H335,H340,H350i,H410

pcodes

P202 - P273 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Irrit. 2 - Muta. 1B - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

存储类别

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

危险化学品

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The Golgi-Cox stain is an established method for characterising neuron cell morphology. The method highlights neurite processes of stained cells allowing the complexity of dendritic branching to be measured. Conventional rapid Golgi and Golgi-Cox methods all require fresh impregnation in

Redetermination of the structures of potassium sulphate and potassium chromate: the effect of electrostatic crystal forces upon observed bond lengths.

McGinnety JA.

Acta Crystallographica Section B, Structural Science, 28(9), 2845-2852 (1972)

Comparative Study of Factors Influencing the Action of Corrosion Inhmitors for Mild Steel in Neutral Solution: II. Potassium Chromate.

Mercer AD and Jenkins IR.

British Corrosion Journal, 3(3), 130-135 (1968)

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全球贸易项目编号

货号	GTIN
216615-500G	04061835346738
216615-100G	04061835346721