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243205 Aldrich

Trimethylamine

anhydrous, ≥99%

  • CAS Number 75-50-3

  • Linear Formula (CH3)3N

  • Molecular Weight 59.11

  •  Beilstein Registry Number 956566

  •  EC Number 200-875-0

  •  MDL number MFCD00008327

  •  PubChem Substance ID 24854605

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Properties

Related Categories Chemical Synthesis, Specialty Gases, Synthetic Reagents More...
grade   anhydrous
vapor density   2.09 (vs air)
vapor pressure   13.3 psi ( 21 °C)
InChI Key   GETQZCLCWQTVFV-UHFFFAOYSA-N
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

Description

Packaging

100, 400 g in Sure-Pac™

Packaged in Sure/Pac carbon steel cylinders with 1/4" NPTM 316SS plug; include installed 316SS needle valve.

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.

Recommended products

Stainless steel needle valve Z146056 and hose adapter Z146838 is recommended.

Legal Information

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

Safety & Documentation

Safety Information

Signal word 
Danger
Hazard statements 
RIDADR 
UN1083 - class 2 - Trimethylamine, anhydrous
WGK Germany 
1
RTECS 
PA0350000
Flash Point(F) 
19.4 °F
Flash Point(C) 
-7 °C

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References

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