Talc

Mg₃Si₄O₁₀(OH)₂

IUPAC: Hydrated magnesium silicate

CAS: 14807-96-6

概要

Talc is the softest known mineral (Mohs hardness 1) and the primary ingredient in talcum powder. It is used in cosmetics, paper, and plastics.

組成

元素 記号 原子 原子質量
Hydrogen H 2 1.0080
Oxygen O 12 15.9990
Magnesium Mg 3 24.3050
Silicon Si 4 28.0850

元素組成

H
Hydrogen ×2
0.5%
O
Oxygen ×12
50.6%
Mg
Magnesium ×3
19.2%
Si
Silicon ×4
29.6%

用途

  • • Talcum powder
  • • Paper filler
  • • Cosmetics
  • • Ceramic glaze

豆知識

  • ✦ The softest mineral on the Mohs hardness scale, with a rating of 1

安全性

  • ⚠ Controversy over possible asbestos contamination in some deposits

Structure

SMILES

[OH-].[OH-].[O-][Si]12O[Si]3(O[Si](O1)(O[Si](O2)(O3)[O-])[O-])[O-].[Mg+2].[Mg+2].[Mg+2]

特性

タイプ
mineral
状態
solid
モル質量
379.27 g/mol
密度
2.7500 g/cm³
溶解度
insoluble

Molecular Descriptors

Exact Mass
377.8175
TPSA
150.0 Ų
H-Bond Donors
2
H-Bond Acceptors
12
Rotatable Bonds
0
Heavy Atoms
19
Complexity
188.0

関連化合物

Kaolinite

Al₂Si₂O₅(OH)₄

Potassium Feldspar

KAlSi₃O₈

Zeolite A

Na₁₂Al₁₂Si₁₂O₄₈

Calcium Silicate

CaSiO₃

Frequently Asked Questions

What is Talc?
Talc (Mg₃Si₄O₁₀(OH)₂) is a mineral compound with the IUPAC name Hydrated magnesium silicate.
What is the molecular weight of Talc?
Talc has a molar mass of 379.27 g/mol.
What state is Talc at room temperature?
Talc is a solid at room temperature.
Is Talc organic or inorganic?
Talc is classified as an inorganic compound.
What elements make up Talc?
Talc (Mg₃Si₄O₁₀(OH)₂) is composed of Hydrogen (H), Oxygen (O), Magnesium (Mg), Silicon (Si).