Chromium Trioxide

CrO₃

IUPAC: Chromium(VI) oxide

CAS: 1333-82-0

Übersicht

Chromium trioxide is a powerful oxidizer and the source of hexavalent chromium in chrome plating baths. It is the most important industrial chromium(VI) compound.

Zusammensetzung

Element Symbol Atome Atommasse
Oxygen O 3 15,9990
Chromium Cr 1 51,9960

Elementare Zusammensetzung

O
Oxygen ×3
48,0%
Cr
Chromium ×1
52,0%

Verwendung

  • • Chrome plating
  • • Wood preservation (CCA)
  • • Metal finishing
  • • Chemical oxidation

Wissenswertes

  • ✦ Hard chrome plating using CrO₃ gives automotive bumpers and hydraulic cylinders their mirror finish

Sicherheit

  • ⚠ Carcinogen
  • ⚠ Powerful oxidizer
  • ⚠ Corrosive
  • ⚠ Environmental hazard

Structure

SMILES

O=[Cr](=O)=O

Eigenschaften

Typ
oxide
Zustand
solid
Molmasse
99,99 g/mol
Dichte
2,7000 g/cm³
Schmelzpunkt
196,0 °C
Löslichkeit
625 g/L at 25°C

Molecular Descriptors

Exact Mass
99,9252
TPSA
51,2 Ų
H-Bond Donors
0
H-Bond Acceptors
3
Rotatable Bonds
0
Heavy Atoms
4
Complexity
61,0

Verwandte Verbindungen

Bismuth(III) Oxide

Bi₂O₃

Carbon Monoxide

CO

Cobalt(II) Oxide

CoO

Copper(I) Oxide

Cu₂O

Lithium Nickel Manganese Cobalt Oxide

LiNi₀.₃₃Mn₀.₃₃Co₀.₃₃O₂

Gallium(III) Oxide

Ga₂O₃

Aluminum Oxide

Al₂O₃

Antimony Trioxide

Sb₂O₃

Beryllium Oxide

BeO

Cadmium Oxide

CdO

Frequently Asked Questions

What is Chromium Trioxide?
Chromium Trioxide (CrO₃) is a oxide compound with the IUPAC name Chromium(VI) oxide.
What is the molecular weight of Chromium Trioxide?
Chromium Trioxide has a molar mass of 99.99 g/mol.
What state is Chromium Trioxide at room temperature?
Chromium Trioxide is a solid at room temperature.
Is Chromium Trioxide organic or inorganic?
Chromium Trioxide is classified as an inorganic compound.
What elements make up Chromium Trioxide?
Chromium Trioxide (CrO₃) is composed of Oxygen (O), Chromium (Cr).