Cobalt(II) Chloride

CoCl₂

IUPAC: Cobalt(II) chloride

CAS: 7646-79-9

개요

Cobalt(II) chloride changes from blue (anhydrous) to pink (hydrated) with moisture, making it a popular humidity indicator. It is used in silica gel desiccants.

구성

원소 기호 원자 원자 질량
Chlorine Cl 2 35.4500
Cobalt Co 1 58.9330

원소 구성

Cl
Chlorine ×2
54.6%
Co
Cobalt ×1
45.4%

용도

  • • Humidity indicator
  • • Invisible ink
  • • Electroplating
  • • Catalyst

흥미로운 사실

  • ✦ The blue-to-pink color change with humidity is used in weather-predicting novelty items

안전

  • ⚠ Carcinogen
  • ⚠ Toxic

Structure

SMILES

[Cl-].[Cl-].[Co+2]

성질

유형
salt
상태
solid
몰 질량
129.84 g/mol
밀도
3.3560 g/cm³
녹는점
735.0 °C
끓는점
1049.0 °C
용해도
529 g/L at 20°C

Molecular Descriptors

Exact Mass
128.8709
TPSA
0.0 Ų
H-Bond Donors
0
H-Bond Acceptors
2
Rotatable Bonds
0
Heavy Atoms
3
Complexity
0.0

관련 화합물

Diammonium Phosphate

(NH₄)₂HPO₄

Ammonium Chloride

NH₄Cl

Barium Chloride

BaCl₂

Cadmium Sulfide

CdS

Calcium Sulfate

CaSO₄

Cerium(III) Chloride

CeCl₃

Copper(II) Sulfide

CuS

Ammonium Sulfate

(NH₄)₂SO₄

Ammonium Bicarbonate

NH₄HCO₃

Calcium Propionate

Ca(C₂H₅COO)₂

Frequently Asked Questions

What is Cobalt(II) Chloride?
Cobalt(II) Chloride (CoCl₂) is a salt compound with the IUPAC name Cobalt(II) chloride.
What is the molecular weight of Cobalt(II) Chloride?
Cobalt(II) Chloride has a molar mass of 129.84 g/mol.
What state is Cobalt(II) Chloride at room temperature?
Cobalt(II) Chloride is a solid at room temperature.
Is Cobalt(II) Chloride organic or inorganic?
Cobalt(II) Chloride is classified as an inorganic compound.
What elements make up Cobalt(II) Chloride?
Cobalt(II) Chloride (CoCl₂) is composed of Chlorine (Cl), Cobalt (Co).