243205

Trimethylamine

anhydrous, ≥99%

• Synonym(s): N,N,N-Trimethylamine, N,N-Dimethylmethanamine
• Linear Formula: (CH₃)₃N
• CAS Number: 75-50-3
• Molecular Weight: 59.11
• Beilstein: 956566
• EC Number: 200-875-0
• MDL number: MFCD00008327
• UNSPSC Code: 12142100
• PubChem Substance ID: 24854605
• NACRES: NA.22

Properties

• grade: anhydrous
• vapor density: 2.09 (vs air)
• vapor pressure: 13.3 psi ( 21 °C)
• Assay: ≥99%
• autoignition temp.: 374 °F
• expl. lim.: 11.6 %
• impurities: ≤0.05% ammonia; ≤0.05% methylamine; ≤0.2% dimethylamine
• bp: 3-4 °C (lit.)
• mp: −117 °C (lit.)
• density: 0.63 g/mL at 20 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: CN(C)C
• InChI: 1S/C3H9N/c1-4(2)3/h1-3H3
• InChI key: GETQZCLCWQTVFV-UHFFFAOYSA-N

Description

Application

Trimethylamine (TMA) has been used in the preparation of poly[9,9′-bis(6′-N,N,N-trimethylammonium)hexyl)fluorene-co-alt-4,7-(2,1,3-benzothiadiazole) dibromide] (PFBT), a water-soluble, cationic conjugated polymer used in label-free DNA microarrays. It can also be used to prepare benzyltrimethylammonium chloride, which then reacts with sodium ethoxide to form benzyltrimethylammonium ethoxide. The adsorption of TMA on the gold surface of trimethylsilylated barium nitrate-gold/titanosilicate catalyst acts as a promoter for the propylene epoxidation with oxygen and hydrogen.

Packaging

Supplied in a Sure/Pac^™ cylinder and has a 316 stainless steel needle valve with a male 1/4" NPTF outlet thread installed . Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

• Aldrich^® Sure/Pac^™ station for liquefied gases Z566446
• PTFE Sealing tape Z104388 or Z221880
• Stainless steel hose adapter Z146838
• Aldrich^® mini gas regulator Z513547

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Pictograms: GHS02,GHS04,GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H220,H280,H315,H318,H332,H335
• Precautionary Statements: P210 - P280 - P304 + P340 + P312 - P305 + P351 + P338 - P403 + P233 - P410 + P403
• Hazard Classifications: Acute Tox. 4 Inhalation - Eye Dam. 1 - Flam. Gas 1A - Press. Gas Liquefied gas - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 2A - Gases
• WGK: WGK 1
• Flash Point(F): 19.4 °F - closed cup
• Flash Point(C): -7 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves