CAS 75-59-2 TMAH - Materials / Alfa Chemistry

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TMAH

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Catalog Number

ACM75592-2

Product Name

TMAH

Structure

CAS

75-59-2

Category

Polymers

Description

Tetramethylammonium hydroxide is a solid in the hydrated form or a colorless liquid with a strong ammonia-like odor. It is soluble in water. It is corrosive to metals and tissue.;Liquid

IUPAC Name

tetramethylazanium;hydroxide

Molecular Weight

91.15g/mol

Molecular Formula

C4H13NO

Canonical SMILES

C[N+](C)(C)C.[OH-]

InChI

InChI=1S/C4H12N.H₂O/c1-5(2,3)4;/h1-4H3;1H2/q+1;/p-1

InChI Key

WGTYBPLFGIVFAS-UHFFFAOYSA-M

Melting Point

63 °C

Density

Specific gravity of solution approximately 1.00 at 24 °C/4 °C

Solubility

In water, 1.0X10+6 mg/L at 25 °C /miscible/ (est)

Color/Form

The free base is known only in solution or as a solid pentahydrate, forming colorless, deliquescent needles;Liquid

Complexity

19.1

Corrosivity

Corrosive

Covalently-Bonded Unit Count

EC Number

200-882-9

Exact Mass

91.099714g/mol

Formal Charge

Heavy Atom Count

Log P

log Kow = -2.47 (est)

MeSH Entry Terms

tetraamethylammonium acetate;tetramethylammonium;tetramethylammonium bromide;tetramethylammonium chloride;tetramethylammonium fluoride;tetramethylammonium hydrogen dichloride;tetramethylammonium hydroxide;tetramethylammonium hydroxide pentahydrate;tetramethylammonium iodide;tetramethylammonium nitrate;tetramethylammonium perchlorate;tetramethylammonium sulfate (2:1);tetramethylammonium tribromide;tetramethylammonium triiodide;trimethylaminomethane

Monoisotopic Mass

91.099714g/mol

Odor

Strong ammonia-like

Other Experimental

Decomposes to trimethylamine and methanol upon distillation;Readily absorbs CO2 from the air;When heated to decomposition it emits toxic fumes of NOx and NH₃.;Concn: 25 wt% in water. VP: 17.5 mm Hg at 20 °C; Index of refraction: 1/3806 at 20 °C/D; density: 1.106 g/mL at 25 °C /Tetramethylammonium hydroxide solution/;Henry's Law constant = 4.35X10-16 atm-cu m/mol at 25 °C (est);Hydroxyl radical reaction rate constant = 5.06X10-12 cu cm/molec-sec at 25 °C (est)

Rotatable Bond Count

Stability

Stable under recommended storage conditions. /Tetramethylammonium hydroxide pentahydrate/

UNII

5GKP7317Q2

UN Number

1835;1835;1835

Vapor Pressure

1.16X10-6 mm Hg at 25 °C (est)

MSDS

Download MSDS

COA