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P2588

Sigma-Aldrich

Potassium dichromate

BioXtra, ≥99.5%

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Synonym(s):
Potassium bichromate
Linear Formula:
K2Cr2O7
CAS Number:
Molecular Weight:
294.18
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

product line

BioXtra

Quality Level

Assay

≥99.5%

form

powder or crystals

reaction suitability

reagent type: oxidant

impurities

<0.005% Phosphorus (P)
<0.1% Insoluble matter

pH

3.6 (100 g/L)

mp

398 °C (lit.)

solubility

H2O: 0.1 M at 20 °C, clear, orange

anion traces

sulfate (SO42-): <0.005%

cation traces

Al: <0.0005%
Ca: <0.0005%
Cu: <0.0005%
Fe: <0.001%
Mg: <0.0005%
Na: <0.05%
Pb: <0.001%
Zn: ≤0.001%

SMILES string

[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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This Item
207802P5271483044
Potassium dichromate BioXtra, &#8805;99.5%

Sigma-Aldrich

P2588

Potassium dichromate

-
Potassium dichromate ACS reagent, &#8805;99.0%

Sigma-Aldrich

207802

Potassium dichromate

Essential Grade
Potassium dichromate ReagentPlus&#174;, &#8805;99.5%

Sigma-Aldrich

P5271

Potassium dichromate

-
Potassium dichromate 99.98% trace metals basis

Sigma-Aldrich

483044

Potassium dichromate

-
form

powder or crystals

form

crystals

form

powder

form

crystalline

impurities

<0.005% Phosphorus (P), <0.1% Insoluble matter

impurities

≤0.005% insolubles

impurities

-

impurities

≤150.0 ppm Trace Metal Analysis

pH

3.6 (100 g/L)

pH

3.5-5.0 (25 °C, 29.4 g/L)

pH

3.6 (100 g/L)

pH

-

mp

398 °C (lit.)

mp

398 °C (lit.)

mp

398 °C (lit.)

mp

398 °C (lit.)

solubility

H2O: 0.1 M at 20 °C, clear, orange

solubility

-

solubility

-

solubility

-

General description

Potassium dichromate, a toxic hexavalent chromium compound, is a strong oxidizing agent. Its nephrotoxicity in humans and animals has been studied. Its crystalline structure has been analyzed. Its ability to induce genetic and DNA methylation alteration has been assessed in Brassica napus L. plants.

Application

Potassium dichromate has been used in experiments to determine the ability of MCM-41-supported nanoscale zero-valent iron (nZVI) sample to remove hexavalent chromium.

Signal Word

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 - STOT SE 3

Target Organs

Cardio-vascular system, Respiratory system

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Customers Also Viewed

Massimo Labra et al.
Chemosphere, 54(8), 1049-1058 (2003-12-11)
This study evaluated genetic and DNA methylation alteration induced by potassium dichromate in Brassica napus L. plants. Amplified fragment length polymorphism (AFLP) and selective amplification of polymorphic loci (SAMPL) tests revealed dose-related increases in sequence alterations in plantlets exposed to
An accurate determination of the crystal structure of triclinic potassium dichromate, K2Cr2O7.
Brandon JK and Brown ID.
Canadian Journal of Chemistry, 46(6), 933-941 (1968)
Eduardo Molina-Jijón et al.
Free radical biology & medicine, 51(8), 1543-1557 (2011-08-16)
We report the role of mitochondria in the protective effects of curcumin, a well-known direct and indirect antioxidant, against the renal oxidant damage induced by the hexavalent chromium [Cr(VI)] compound potassium dichromate (K(2)Cr(2)O(7)) in rats. Curcumin was given daily by
A G Levis et al.
Cancer research, 38(1), 110-116 (1978-01-01)
Treatments for 1 to 4 hr with 10-4 m potassium dichromate, a soluble hexavalent chromium salt with a strong oxidizing power, markedly reduce DNA and RNA accumulation rates in hamster fibroblasts grown in vitro (BHK line), as shown by quantitative
Nanoscale zero-valent iron supported on mesoporous silica: Characterization and reactivity for Cr(VI) removal from aqueous solution.
Petala E, et al.
Journal of Hazardous Materials, 261, 295-306 (2013)

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