Sodium Hydroxide Solution

NaOH(aq)

IUPAC: Sodium hydroxide

CAS: 1310-73-2

Overview

Aqueous sodium hydroxide solution at 50% concentration is the most commonly traded form of this important industrial base. Known as 'liquid caustic soda', it is transported by tanker and pipeline. It is produced as a co-product of chlorine in the chloralkali process.

Composition

Element Symbol Atoms Atomic Mass
Hydrogen H 1 1.0080
Oxygen O 1 15.9990
Sodium Na 1 22.9900

Elemental Composition

H
Hydrogen ×1
2.5%
O
Oxygen ×1
40.0%
Na
Sodium ×1
57.5%

Uses

  • • Chemical manufacturing feedstock
  • • Petroleum refining
  • • Paper manufacturing
  • • Biodiesel production

Fun Facts

  • ✦ Every tonne of chlorine produced also yields 1.1 tonnes of NaOH as co-product

Safety

  • ⚠ Extremely corrosive
  • ⚠ Causes severe chemical burns
  • ⚠ Exothermic dissolution

Structure

SMILES

[OH-].[Na+]

Properties

Type
base
State
liquid
Molar Mass
40.00 g/mol
Density
1.5150 g/cm³
Melting Point
-15.0 °C
Boiling Point
145.0 °C
Solubility
miscible

Molecular Descriptors

Exact Mass
39.9925
TPSA
1.0 Ų
H-Bond Donors
1
H-Bond Acceptors
1
Rotatable Bonds
0
Heavy Atoms
2
Complexity
2.0

Also Known As

Lye solution Caustic soda solution

Related Compounds

Aluminum Hydroxide

Al(OH)₃

Ammonia

NH₃

Barium Hydroxide

Ba(OH)₂

Calcium Hydroxide

Ca(OH)₂

Lithium Hydroxide

LiOH

Magnesium Hydroxide

Mg(OH)₂

Potassium Hydroxide

KOH

Sodium Hydroxide

NaOH

Frequently Asked Questions

What is Sodium Hydroxide Solution?
Sodium Hydroxide Solution (NaOH(aq)) is a base compound with the IUPAC name Sodium hydroxide.
What is the molecular weight of Sodium Hydroxide Solution?
Sodium Hydroxide Solution has a molar mass of 39.997 g/mol.
What state is Sodium Hydroxide Solution at room temperature?
Sodium Hydroxide Solution is a liquid at room temperature.
Is Sodium Hydroxide Solution organic or inorganic?
Sodium Hydroxide Solution is classified as an inorganic compound.
What elements make up Sodium Hydroxide Solution?
Sodium Hydroxide Solution (NaOH(aq)) is composed of Hydrogen (H), Oxygen (O), Sodium (Na).