Tetramethylammonium Hydroxide CAS#75-59-2

Tetramethylammonium Hydroxide CAS#75-59-2

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Tetramethylammonium Hydroxide CAS#75-59-2
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Chemical Name:Maltodextrin
CAS No.9050-36-6
Molecular Formula:C12H22O11
Molecular weight: 342
Sample: Available
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Product Description


Products Description of Tetramethylammonium Hydroxide CAS#75-59-2

Tetramethylammonium hydroxide liquid state: Commonly, it is a colorless and transparent aqueous solution (concentration 25% - 50%). High-purity products have no impurity color, while industrial grades may be slightly light yellow. It has strong alkalinity (pH≈14) and an ammonia smell, and its viscosity increases with the increase of concentration. Solid state: White crystalline powder, with extremely strong hygroscopicity. At room temperature, it rapidly deliquesces into a viscous liquid. Therefore, it rarely exists in pure solid form and mostly in the form of hydrates (such as pentahydrate).


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Product Name:

Tetramethylammonium hydroxide

Synonyms:

N,N,N-TRIMETHYLMETHANAMINIUM HYDROXIDE;TETRAMETHYLAMMONIUM HYDROXIDE;TMAH;Tetramethylammoniumhydroxide,25%soln.inmethanol;Tetramethylammoniumhydroxide,25%w/wAqueousSolution,99.5%(metalsbasis);TETRAMETHYLAMMONIUM HYDROXIDEOL;Tetramethylammonium hydroxide, 10% in water;Tetramethylammonium hydroxide, 25 wt% in methanol

CAS:

75-59-2

MF:

C4H13NO

MW:

91.15

EINECS:

200-882-9

Product Categories:

Analytical Chemistry;Esterification & Alkylation (GC Derivatizing Reagents);quarternary ammonium bases;Ammonium Hydroxides (Quaternary);GC Derivatizing Reagents;Onium Hydroxides (GC Derivatizing Reagents);Quaternary Ammonium Compounds;Atomic Absorption Spectroscopy (AAS);Digestion Reagents;Pure Reagents for Wet Digestion (Trace SELECT);Reference Material Perchloric acidTitration;Base SolutionsVolumetric Solutions;Organic BasesEssential Chemicals;Reagent Grade;ACS GradeChemical Synthesis;Essential Chemicals;Organic Bases;Routine Reagents;Synthetic Reagents;Electronic Chemicals;Micro/Nanoelectronics;Semiconductor Grade Chemicals;Reference Material Hydrochloric acidTitration;By Reference Material;Chemical Synthesis;AnionicHPLC;Chromatography/CE Reagents;Ion Pair;Ion Pair Reagents;Ion Pair Reagents - Anionic Concentrate;Solutions for non-aqueous titrations;Volumetric Solutions;Base ConcentratesConcentrates (e.g. FIXANAL);Concentrates (e.g. FIXANAL);Reference Material Hydrochloric acid;Titration

Mol File:

75-59-2.mol



Tetramethylammonium hydroxide Chemical Properties

Melting point

°C

Boiling point

110 °C

density

0.866 g/mL at 25 °C

vapor pressure

17.5 mm Hg ( 20 °C)

refractive index

n20/D1.384

Fp

80 °F

storage temp.

Store below +30°C.

solubility

Methanol (Sparingly), Water (Slightly)

form

Solution

color

APHA: ≤10

Odor

strong ammonia-like odor

PH

>13 (H2O, 20°C)

Water Solubility

Soluble in water.

Sensitive

Air Sensitive

Merck

14,9224

BRN

3558708

Stability:

Stable. Flammable. Incompatible with strong oxidizing agents, strong acids.

InChIKey

WGTYBPLFGIVFAS-UHFFFAOYSA-M

CAS DataBase Reference

75-59-2(CAS DataBase Reference)

EPA Substance Registry System

Tetramethylammonium hydroxide (75-59-2)



Product Application of  Tetramethylammonium Hydroxide CAS#75-59-2

Tetramethylammonium hydroxide is used to produce tetramethyl-ammonium azide. It is used as an anisotropic etchant of silicon, basic solvent in the development of acidic photoresist in photolithography process, as surfactant in the synthesis of ferrofluid and as a polarographic reagent. It finds application in the production of organic silicon, where it is used for computer silicon wafer surface brightener and cleaning agent. It is also involved in the purification of some metallic elements.

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