Calcium Oxide

CaO

IUPAC: Calcium oxide

CAS: 1305-78-8

概述

Calcium oxide (quicklime) is a white caustic substance produced by heating limestone. It reacts exothermically with water to form slaked lime.

组成

元素 符号 原子 原子质量
Oxygen O 1 15.9990
Calcium Ca 1 40.0780

元素组成

O
28.5%
Ca
71.5%

用途

  • Cement production
  • Steel manufacturing
  • Water treatment
  • Soil stabilization

趣味知识

  • Quicklime was used in ancient warfare — Roman ships catapulted it at enemy vessels

安全性

  • ⚠ Corrosive
  • ⚠ Causes severe burns
  • ⚠ Exothermic reaction with water

Structure

SMILES

O=[Ca]

属性

类型
oxide
状态
solid
摩尔质量
56.08 g/mol
密度
3.3400 g/cm³
熔点
2613.0 °C
沸点
2850.0 °C
溶解度
Reacts

Molecular Descriptors

Exact Mass
55.9575
TPSA
17.1 Ų
H-Bond Donors
0
H-Bond Acceptors
1
Rotatable Bonds
0
Heavy Atoms
2
Complexity
2.0

Frequently Asked Questions

What is Calcium Oxide?
Calcium Oxide (CaO) is a oxide compound with the IUPAC name Calcium oxide.
What is the molecular weight of Calcium Oxide?
Calcium Oxide has a molar mass of 56.08 g/mol.
What state is Calcium Oxide at room temperature?
Calcium Oxide is a solid at room temperature.
Is Calcium Oxide organic or inorganic?
Calcium Oxide is classified as an inorganic compound.
What elements make up Calcium Oxide?
Calcium Oxide (CaO) is composed of Oxygen (O), Calcium (Ca).