328251

Tetramethylammonium hydroxide solution

10 wt. % in H₂O

• 동의어(들): N,N,N-trimethyl-methanaminium hydroxide, TMAH, TMAOH
• Linear Formula: (CH₃)₄N(OH)
• CAS Number: 75-59-2
• Molecular Weight: 91.15
• Beilstein: 3558708
• MDL number: MFCD00008280
• UNSPSC 코드: 12352100
• PubChem Substance ID: 24859725
• NACRES: NA.21

속성

• vapor pressure: 17.5 mmHg ( 20 °C)
• Quality Level: 100
• 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

설명

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.

안전성 정보

• 픽토그램: GHS06,GHS08,GHS05
• 신호어: Danger
• 유해 및 위험 성명서: H301,H310,H314,H370,H372,H412
• 예방조치 성명서: P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 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