Calcium Sulfate

CaSO₄

IUPAC: Calcium sulfate

CAS: 7778-18-9

概述

Calcium sulfate occurs naturally as gypsum (CaSO₄·2H₂O) and anhydrite. Plaster of Paris is its hemihydrate form.

组成

元素 符号 原子 原子质量
Oxygen O 4 15.9990
Sulfur S 1 32.0600
Calcium Ca 1 40.0780

元素组成

O
Oxygen ×4
47.0%
S
Sulfur ×1
23.5%
Ca
Calcium ×1
29.4%

用途

  • • Drywall/plasterboard
  • • Plaster of Paris
  • • Tofu coagulant
  • • Cement additive

趣味知识

  • ✦ The Great Pyramid of Giza used gypsum mortar — still holding after 4,500 years

Structure

SMILES

[O-]S(=O)(=O)[O-].[Ca+2]

属性

类型
salt
状态
solid
摩尔质量
136.14 g/mol
密度
2.9600 g/cm³
熔点
1460.0 °C
溶解度
2.4 g/L at 20°C

Molecular Descriptors

Exact Mass
135.9143
TPSA
88.6 Ų
H-Bond Donors
0
H-Bond Acceptors
4
Rotatable Bonds
0
Heavy Atoms
6
Complexity
62.0

相关化合物

Diammonium Phosphate

(NH₄)₂HPO₄

Ammonium Chloride

NH₄Cl

Barium Chloride

BaCl₂

Cadmium Sulfide

CdS

Cerium(III) Chloride

CeCl₃

Copper(II) Sulfide

CuS

Ammonium Sulfate

(NH₄)₂SO₄

Ammonium Bicarbonate

NH₄HCO₃

Barium Carbonate

BaCO₃

Calcium Propionate

Ca(C₂H₅COO)₂

Frequently Asked Questions

What is Calcium Sulfate?
Calcium Sulfate (CaSO₄) is a salt compound with the IUPAC name Calcium sulfate.
What is the molecular weight of Calcium Sulfate?
Calcium Sulfate has a molar mass of 136.14 g/mol.
What state is Calcium Sulfate at room temperature?
Calcium Sulfate is a solid at room temperature.
Is Calcium Sulfate organic or inorganic?
Calcium Sulfate is classified as an inorganic compound.
What elements make up Calcium Sulfate?
Calcium Sulfate (CaSO₄) is composed of Oxygen (O), Sulfur (S), Calcium (Ca).