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Substance Name: Sodium hydroxide [NF]
RN: 1310-73-2
UNII: 55X04QC32I
InChIKey: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Notes

  • A highly caustic substance that is used to neutralize acids and make sodium salts. (From Merck Index, 11th ed)
  • Asbestos coated with NaOH used for absorbing CO2.

Molecular Formulas

  • H-Na-O
  • Na-O-H

Molecular Weight

  • 39.9969
 

Classification Codes

Classification Codes

  • Agricultural Chemical
  • Caustics
  • Germicide, Bactericide, Disinfectant
  • Mutation Data
  • Noxae
  • Pharmaceutic Aid (Alkalizing Agent)
  • Skin / Eye Irritant

Superlist Classification Codes

  • Ceiling 2 mg/m3
  • Reportable Quantity (RQ) = 1000 lb
  • TWA 2 mg/m3

Names and Synonyms

Name of Substance

  • Ascarite
  • Caustic soda
  • Sodium hydroxide
  • Sodium hydroxide [NF]

MeSH Heading

  • Sodium hydroxide

Synonyms

  • Aetznatron
  • Ascarite
  • Caswell No. 773
  • Caustic soda
  • Caustic soda, liquid
  • Collo-Grillrein
  • Collo-Tapetta
  • EC 215-185-5
  • EINECS 215-185-5
  • EPA Pesticide Chemical Code 075603
  • Fuers Rohr
  • HSDB 229
  • Hydroxyde de sodium
  • Hydroxyde de sodium [French]
  • Lewis-red devil lye
  • Liquid-plumr
  • Natrium causticum
  • Natrium-hydroxid, reinstes
  • Natriumhydroxid
  • Natriumhydroxid [German]
  • Natriumhydroxyde
  • Natriumhydroxyde [Dutch]
  • NSC 135799
  • Plung
  • Rohrputz
  • Rohrreiniger Rofix
  • Soda lye
  • Soda, caustic
  • Soda, hydrate
  • Soda, kaustische
  • Sodio(idrossido di)
  • Sodio(idrossido di) [Italian]
  • Sodium hydrate
  • Sodium hydrate solution
  • Sodium hydroxide
  • Sodium hydroxide (Na(OH))
  • Sodium hydroxide (Na2(OH)2)
  • Sodium hydroxide dimer
  • Sodium(hydroxyde de)
  • Sodium(hydroxyde de) [French]
  • UN 1823 (solid)
  • UN 1824 (solution)
  • UNII-55X04QC32I
  • White caustic
  • White caustic solution

Systematic Names

  • Sodium hydroxide
  • Sodium hydroxide (Na(OH))

Superlist Names

  • Caustic soda
  • Caustic soda solution
  • Soda lye
  • Sodium hydrate
  • Sodium hydroxide
  • Sodium hydroxide solution
  • Sodium hydroxide, solid
  • Sodium hydroxide, solid [UN1823] [Corrosive]
  • Sodium hydroxide, solution
  • Sodium hydroxide, solution [UN1824] [Corrosive]
  • UN1823
  • UN1824
  • White caustic

Registry Numbers

CAS Registry Number

  • 1310-73-2

FDA UNII

  • 55X04QC32I

Other Registry Numbers

  • 1418731-95-9
  • 2319645-49-1
  • 2391974-94-8
  • 8012-01-9

System Generated Number

  • 0001310732

Structure Descriptors

InChI

InChI=1S/Na.H2O/h;1H2/q+1;/p-1

InChIKey

HEMHJVSKTPXQMS-UHFFFAOYSA-M

Smiles

O[Na]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 40mg/kg (40mg/kg)   Comptes Rendus Hebdomadaires des Seances, Academie des Sciences. Vol. 257, Pg. 791, 1963.
rabbit LDLo oral 500mg/kg (500mg/kg)   Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 184, Pg. 587, 1937.