potassium dichromate

Also known as Potassium dichromate(VI), Chromium potassium oxide, Dipotassium dichromium heptaoxide, Dipotassium dichromate, Dipotassium bichromate, Dichromic acid dipotassium salt, bichromate of potash

chemical compound

OverviewAI-generated

Potassium dichromate is a chemical compound with the formula K₂Cr₂O₇. It has a mass of 293.773 and a density of 2.676. The substance melts at 398 and boils at 500, which is also its decomposition point. Its standard enthalpy of formation is -2033.

The compound’s IUPAC name is dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium. It has a charge of 0, with 0 hydrogen bond donors and 7 hydrogen bond acceptors. The topological polar surface area is 124. A search for potassium dichromate in PubMed yields 1895 results.

Synthesized by Vinony from 22 facts across 4 sources: Wikidata, PubMed, PubChem, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Chemical data

Formula: Cr2K2O7
Molecular weight: 294.18 g/mol
IUPAC name: dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium
SMILES: [O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[K+].[K+]
InChIKey: KMUONIBRACKNSN-UHFFFAOYSA-N
Polar surface area: 124 Å²
H-bond donors: 0
H-bond acceptors: 7
Formal charge: 0

via PubChem

Research

1,895 papers

Potassium dichromate.Dermatitis : contact, atopic, occupational, drug · 2008
Potassium dichromate sensitivity presenting as tefillin dermatitis: A retrospective cohort study.Contact dermatitis · 2024
Chlorogenic acid mitigates potassium dichromate-induced acute hepato-nephrotoxicity by attenuating the NF-κB signalling pathway.Molecular biology reports · 2024
Bullous Allergic Contact Dermatitis Caused by Potassium Dichromate.Sultan Qaboos University medical journal · 2023
Fatal potassium dichromate ingestion.Journal of postgraduate medicine · 2003

via PubMed

Wikidata facts

Subclass of: chemical compound
Has part: chromium
Mass: 293.773
Image: Potassium dichromate crystals.jpg
Has use: dye

Show 14 more facts

crystal system: triclinic crystal system
melting point: 398
Commons category: Potassium dichromate
canonical SMILES: [O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[K+].[K+]
chemical formula: K₂Cr₂O₇
density: 2.676
standard enthalpy of formation: -2033
boiling point: 500
subject has role: mordant
MCN code: 2841.50.14
safety classification and labelling: Regulation (EC) No. 1272/2008
different from: potassium chromate
color: orange
decomposition point: 500

Sources (6)

via Wikidata · CC0

~6 min read

Encyclopedic overview

Potassium dichromate is the inorganic compound with the formula K2Cr2O7. An orange solid, it is used in diverse laboratory and industrial applications. As with all hexavalent chromium compounds, it is chronically harmful to health. It is a crystalline ionic solid with a very bright, red-orange color. The salt is popular in laboratories because it is not deliquescent, in contrast to the more industrially relevant salt sodium dichromate.

Production

Excerpted from Wikipedia’s “potassium dichromate” article, available under the CC BY-SA 4.0 licence.