Chromium Trioxide

CrO₃

IUPAC: Chromium(VI) oxide

CAS: 1333-82-0

Tổng quan

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.

Thành phần

Nguyên tố Ký hiệu Nguyên tử Khối lượng nguyên tử
Oxygen O 3 15,9990
Chromium Cr 1 51,9960

Thành phần nguyên tố

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

Công dụng

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

Sự thật thú vị

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

An toàn

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

Structure

SMILES

O=[Cr](=O)=O

Tính chất

Loại
oxide
Trạng thái
solid
Khối lượng mol
99,99 g/mol
Mật độ
2,7000 g/cm³
Điểm nóng chảy
196,0 °C
Độ hòa tan
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

Hợp chất liên quan

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).