Sodium Aluminate

NaAlO₂

IUPAC: Sodium aluminate

CAS: 1302-42-7

Overview

Sodium aluminate is an important intermediate in the Bayer process for producing alumina from bauxite ore. It is formed when bauxite is digested in hot NaOH. It is also used as a water treatment chemical and in paper manufacturing.

Composition

Element Symbol Atoms Atomic Mass
Oxygen O 2 15.9990
Sodium Na 1 22.9900
Aluminum Al 1 26.9820

Elemental Composition

O
39.0%
Na
28.0%

Uses

  • Bayer process intermediate (alumina production)
  • Water treatment (coagulant)
  • Concrete accelerator
  • Paper sizing

Fun Facts

  • An essential step in producing all the world's aluminum metal starts with sodium aluminate

Safety

  • ⚠ Corrosive (strongly alkaline)
  • ⚠ Causes burns

Structure

SMILES

O=[Al-]=O.[Na+]

Properties

Type
salt
State
solid
Molar Mass
81.97 g/mol
Density
1.5000 g/cm³
Melting Point
1650.0 °C
Solubility
soluble (strongly alkaline)

Molecular Descriptors

Exact Mass
81.9611
TPSA
34.1 Ų
H-Bond Donors
0
H-Bond Acceptors
3
Rotatable Bonds
0
Heavy Atoms
4
Complexity
18.0

Also Known As

Sodium aluminate

Frequently Asked Questions

What is Sodium Aluminate?
Sodium Aluminate (NaAlO₂) is a salt compound with the IUPAC name Sodium aluminate.
What is the molecular weight of Sodium Aluminate?
Sodium Aluminate has a molar mass of 81.97 g/mol.
What state is Sodium Aluminate at room temperature?
Sodium Aluminate is a solid at room temperature.
Is Sodium Aluminate organic or inorganic?
Sodium Aluminate is classified as an inorganic compound.
What elements make up Sodium Aluminate?
Sodium Aluminate (NaAlO₂) is composed of Oxygen (O), Sodium (Na), Aluminum (Al).