334901

Tetramethylammoniumhydroxid -Lösung

25 wt. % in methanol

• Synonym(e): N,N,N-trimethyl-methanaminium hydroxide, TMAH, TMAOH
• Lineare Formel: (CH₃)₄N(OH)
• CAS-Nummer: 75-59-2
• Molekulargewicht: 91.15
• Beilstein: 3558708
• MDL-Nummer: MFCD00008280
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 57648847
• NACRES: NA.21

Eigenschaften

• Dampfdruck: 17.5 mmHg ( 20 °C)
• Qualitätsniveau: 200
• Form: liquid
• Konzentration: 25 wt. % in methanol
• Verunreinigungen: ≤10% water; ≤2% chloride
• Dichte: 0.866 g/mL at 25 °C
• SMILES String: [OH-].C[N+](C)(C)C
• InChI: 1S/C4H12N.H2O/c1-5(2,3)4;/h1-4H3;1H2/q+1;/p-1
• InChIKey: WGTYBPLFGIVFAS-UHFFFAOYSA-M

Beschreibung

Allgemeine Beschreibung

Tetramethylammonium hydroxide is a strong base used in the o-alkylation of phenolic and carboxylic OH groups.

Tetramethylammonium hydroxide is a quaternary ammonium salt generally used as an anisotropic etchant for silicon due to its high silicon etching rate.

Anwendung

Tetramethylammonium hydroxide solution (25 wt.% solution in methanol) may be used in the synthesis of zirconium oxides via a modified sol-gel method with potential application as catalyst materials in CO hydrogenation.

Sicherheitshinweise

• Piktogramme: GHS02,GHS06,GHS08,GHS05
• Signalwort: Danger
• H-Sätze: H226,H300 + H310,H314,H331,H370,H372,H412
• P-Sätze: P210 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 2 Dermal - Acute Tox. 2 Oral - Acute Tox. 3 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT RE 1 Dermal - STOT SE 1
• Zielorgane: Eyes,Central nervous system, Liver,thymus
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 3
• Flammpunkt (°F): 80.6 °F - closed cup
• Flammpunkt (°C): 27 °C - closed cup
• Persönliche Schutzausrüstung: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter