74202

Tetramethylammoniumchlorid

suitable for ion pair chromatography, LiChropur^™, ≥99.0% (AT)

• Synonym(e): TMA
• Lineare Formel: (CH₃)₄N(Cl)
• CAS-Nummer: 75-57-0
• Molekulargewicht: 109.60
• Beilstein: 3911201
• EG-Nummer: 200-880-8
• MDL-Nummer: MFCD00011628
• UNSPSC-Code: 12000000
• PubChem Substanz-ID: 329765550
• NACRES: NB.21

Eigenschaften

• Beschreibung: cationic
• Qualitätsniveau: 100
• Assay: ≥99.0% (AT)
• Form: crystals
• Qualität: LiChropur^™
• Methode(n): ion pair chromatography: suitable
• mp (Schmelzpunkt): >300 °C (lit.)
• λ: 10 % in H₂O
• UV-Absorption: λ: 220 nm A_max: 0.05; λ: 230 nm A_max: 0.04; λ: 250 nm A_max: 0.03; λ: 260 nm A_max: 0.02; λ: 500 nm A_max: 0.02
• Eignung: corresponds to standard for RP gradient test; corresponds to standard for filter test
• SMILES String: [Cl-].C[N+](C)(C)C
• InChI: 1S/C4H12N.ClH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1
• InChIKey: OKIZCWYLBDKLSU-UHFFFAOYSA-M

Beschreibung

Allgemeine Beschreibung

Tetramethylammonium chloride (TMAC) is structurally similar to alkyltrimethylammonium salts. Oxidation of TMAC yields formaldehyde and trimethlamine. It is considered as poor phase-transfer catalyst for most reactions as it is insoluble in organic media. However, it is highly suitable as phase-transfer catalyst for fluorination of chlorobenzaldehydes along with alkali metal fluorides which yield 1,2,2,2-tetrafluoroethyldifluoromethyl ether.

Anwendung

TMAC may be used in ion-exchange procedures to show the increase of pH in understanding the chemical behaviour of catalyst [CTA]Si-MCM-41 using Knoevenagel condensation model.

Rechtliche Hinweise

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Sicherheitshinweise

• Piktogramme: GHS06,GHS08,GHS09
• Signalwort: Danger
• H-Sätze: H300,H311,H315,H370,H411
• P-Sätze: P260 - P264 - P273 - P280 - P301 + P310 - P302 + P352 + P312
• Gefahreneinstufungen: Acute Tox. 2 Oral - Acute Tox. 3 Dermal - Aquatic Chronic 2 - Skin Irrit. 2 - STOT SE 1 Oral
• Zielorgane: Central nervous system
• Lagerklassenschlüssel: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges