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Merck
모든 사진(2)

주요 문서

328251

Sigma-Aldrich

Tetramethylammonium hydroxide solution

10 wt. % in H2O

동의어(들):

N,N,N-trimethyl-methanaminium hydroxide, TMAH, TMAOH

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About This Item

Linear Formula:
(CH3)4N(OH)
CAS Number:
Molecular Weight:
91.15
Beilstein:
3558708
MDL number:
UNSPSC 코드:
12352100
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

17.5 mmHg ( 20 °C)

Quality Level

농도

10 wt. % in H2O

refractive index

n20/D 1.3521

pH

(ca.13 at 20 °C (68 °F))

solubility

water: soluble

density

1.006 g/mL at 25 °C

작용기

amine

SMILES string

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

InChI

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

InChI key

WGTYBPLFGIVFAS-UHFFFAOYSA-M

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일반 설명

Tetramethylammonium hydroxide (TMAH), is a commercially available quaternary ammonium base with significantly higher basicity than ammonium hydroxide.

애플리케이션

Tetramethylammonium hydroxide solution (10 wt. % in H2O) can be used as:      
  • A reactant to synthesize epoxy-polyhedral oligomeric silsesquioxanes (EPOSS) via sol-gel method using 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane (ECTMS) in IPA.     
  • An ionic liquid to modify SnO2 nanocrystals, which are applicable as an efficient electron transport layer in perovskite solar cells.

TMAH can also be used as an anisotropic etchant for silicon due to its high silicon etching rate. The main advantage of using TMAH is that it causes no danger to electrical circuits due to the absence of alkali ions.

픽토그램

Skull and crossbonesHealth hazardCorrosion

신호어

Danger

유해 및 위험 성명서

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 3 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B - STOT RE 1 Dermal - STOT SE 1

표적 기관

Central nervous system, Liver,thymus

Storage Class Code

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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