Sodium Hydroxide, Anhydrous



Request Quote

Product Code Available Product Forms Request A Quote
NA-OH-02-P.AHYD (2N) 99% Sodium Hydroxide, Anhydrous Request
NA-OH-025-P.AHYD (2N5) 99.5% Sodium Hydroxide, Anhydrous Request
NA-OH-03-P.AHYD (3N) 99.9% Sodium Hydroxide, Anhydrous Request
NA-OH-035-P.AHYD (3N5) 99.95% Sodium Hydroxide, Anhydrous Request
NA-OH-04-P.AHYD (4N) 99.99% Sodium Hydroxide, Anhydrous Request
NA-OH-05-P.AHYD (5N) 99.999% Sodium Hydroxide, Anhydrous Request


Compound Formula HNaO
Molecular Weight 40
Appearance White, othogonal crystals
Melting Point 318° C (604.4° F)
Boiling Point 1,388° C (2,530° F)
Density 2.13 g/cm3
Exact Mass 39.992509
Monoisotopic Mass 39.992509

Health & Safety Info  |  MSDS / SDS

Signal Word Danger
Hazard Statements H314
Hazard Codes C
Risk Codes 35
Safety Statements 26-37/39-45
RTECS Number WB4900000
Transport Information UN 1823 8/PG 2
WGK Germany 3
Globally Harmonized System of Classification and Labelling (GHS) N/A


Hydroxide Formula Diagram (-OH)Sodium Hydroxide, Anhydrous is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. Hydroxide, the OH- anion composed of an oxygen atom bonded to a hydrogen atom, is commonly present in nature and is one of the most widely studied molecules in physical chemistry. Hydroxide compounds have diverse properties and uses, from base catalysis to detection of carbon dioxide. In a watershed 2013 experiment, scientists at JILA (the Joint Institute for Laboratory Astrophysics) achieved evaporative cooling of compounds for the first time using hydroxide molecules, a discovery that may lead to new methods of controlling chemical reactions and could impact a range of disciplines, including atmospheric science and energy production technologies. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.


Caustic soda; Soda lye; Aetznatron; Sodium hydrate

Chemical Identifiers

Formula NaOH
CAS 1310-73-2
Pubchem CID 14798
MDL MFCD00003548
EC No. 215-185-5
IUPAC Name sodium hydroxide
Beilstein Registry No. N/A
SMILES [Na+].[OH-]
InchI Identifier InChI=1S/Na.H2O/h;1H2/q+1;/p-1

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.

Related Products & Element Information

Sodium Bohr ModelSee more Sodium products. Sodium (atomic symbol: Na, atomic number: 11) is a Block D, Group 5, Period 4 element with an atomic weight of 22.989769. The number of electrons in each of Sodium's shells is [2, 8, 1] and its electron configuration is [Ne] 3s1.The sodium atom has a radius of 185.8 pm and a Van der Waals radius of 227 pm. Sodium was discovered and first isolated by Sir Humphrey Davy in 1807. In its elemental form, sodium has a silvery-white metallic appearance. It is the sixth most abundant element, making up 2.6 % of the earth's crust. Sodium does not occur in nature as a free element and must be extracted from its compounds (e.g., feldspars, sodalite, and rock salt). The name Sodium is thought to come from the Arabic word suda, meaning "headache" (due to sodium carbonate's headache-alleviating properties), and its elemental symbol Na comes from natrium, its Latin name.