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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Reference substances

Reference substances

Currently viewing:
IUPAC name:
sodium hydroxide

Inventory

EC number:
215-185-5
EC name:
Sodium hydroxide
CAS number:
1310-73-2
CAS number:
1310-73-2
Synonyms
Names:
CAUSTIC SODA
Caustic soda
Lessive de soude
Lye
NaOH
Natriumhydroxid (german)
Natronlauge (german)
SODIUM HYDROXIDE (Na(OH))
Sodium Hydroxide (Na(OH))
Sodium hydrate
Sodium hydroxide (Na(OH))
caustic soda
lye
sodium hydroxide
sodium hydroxide caustic soda sodium hydrate
sodium hydroxyde
soude
Ätznatron (german)
Identifier:
CAS number
1310-73-2
Identifier:
IUPAC name
sodium hydroxide
Identifier:
IUPAC name
SODIUM HYDROXIDE
Identifier:
IUPAC name
Sodium Hydroxide
Identifier:
IUPAC name
Sodium hydoxide
Identifier:
IUPAC name
Sodium hydroxide
Identifier:
IUPAC name
Sodium hydroxide
Identifier:
IUPAC name
Sodium hydroxide.
Identifier:
IUPAC name
Sodium oxidanide
Identifier:
IUPAC name
sodium hydroxide
Identifier:
IUPAC name
sodium;hydroxide
Identifier:
other: InChl
InChI=InChI=1/Na.H2O/h;1H2/q+1;/p-1/fNa.HO/h;1h/qm;-1
Identifier:
other: SMILES notation
(OH-).(Na+)
Identifier:
other: InChl
1/Na.H2O/h;1H2/q+1;/p-1
Identifier:
other: InChl
1/Na.H2O/h;1H2/q+1;/p-1/rHNaO/c1-2/h2H
Identifier:
other: InChl
1S/Na.H2O/h;1H2/q+1;/p-1
Identifier:
other: InChl
InChI=1/Na.H2O/h;1H2/q+1:p-1
Identifier:
other: InChl
InChI=1/Na.H2O/h;1H2/q+1;/p-1
Identifier:
other: InChl
InChI=1S/Na.H2O/h;1H2/q+1;/p-1
Identifier:
other: InChl
InChI=1S/Na.H2O/h;1H2/q+1;/p-1
Identifier:
other: Molecular formula
NaOH
Identifier:
other: SMILES notation
O[Na
Identifier:
other: SMILES notation
O[Na]
Identifier:
other: SMILES notation
[Na+].[OH-]
Identifier:
other: SMILES notation
[Na+][OH-]
Identifier:
other: SMILES notation
[Na]O
Identifier:
other: SMILES notation
[OH-]. [Na+]
Identifier:
other: SMILES notation
[OH-].[Na+1]
Identifier:
other: SMILES notation
[OH-].[Na+]
Identifier:
other: SMILES notation
[OH-].[Na+]
Identifier:
other: SMILES notation
[OH-][Na+]
sodium hydroxide

Molecular and structural information

Molecular formula:
HNaO
Molecular weight:
39.997
SMILES notation:
[OH-].[Na+]
InChl:
InChI=1/Na.H2O/h;1H2/q+1;/p-1
Structural formula:
Chemical structure

Related substances

Identifier:
CAS number
Identity:
1310-73-2