Sodium hydroxide

HNaOCAS 1310-73-240.00 g/mol

Na+HO−

Properties

Molecular formula
HNaO
Molar mass
40.00 g/mol
Exact mass
39.9925 Da
Density
2.13 g/mL (at 25 °C)
Melting point
323 °C
Boiling point
1388 °C
Water solubility
1,090 g/L (20 °C)
logP
-3.17Crippen estimate
Polar surface area
30.0 Ų
H-bond donors / acceptors
0 / 1
Rotatable bonds
0

Hazards

Danger
Corrosive (GHS05)

Harmonised EU classification (CLP Annex VI), via PubChem.

Precautionary statements

P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, P501

Identifiers

CAS number
1310-73-2
SMILES
[Na+].[OH-]
InChIKey
HEMHJVSKTPXQMS-UHFFFAOYSA-M
InChI
InChI=1S/Na.H2O/h;1H2/q+1;/p-1

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Names and synonyms

24 names · show all
  • Sodium hydroxide (Na(OH))
  • Caustic soda
  • White caustic
  • Ascarite
  • Collo-grillrein
  • Collo-tapetta
  • Aetznatron
  • Soda, caustic
  • GR
  • GR (alkali reagent)
  • NSC 135799
  • E 33
  • E 33 (Degreasing agent)
  • MO 67
  • FC 4370
  • StamperPrep
  • Tosoh pearl
  • DL α
  • Promoter 3308B
  • Ma-D 331
  • BO-200B
  • Caustic solution 70TW
  • Reasol
  • S/4920/AP1

Reactions

Safety data sheets

3 stored sheets list this compound in section 3, matched by the CAS number 1310-73-2. Each row opens the sheet with its composition and PDF.

Open in the SDS library

Work with Sodium hydroxide

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue. All similar compounds

Elsewhere