THE PREPARATION OF CARBON-14 LABELED TETRAMETHYL AMMONIUM BROMIDE

Abstract

Carbon-14 labeled tetramethylammonium bromide was prepared via the condensation of C-14 methyl bromide with trimethylamine using high vacuum techniques. Unrecrystallized product yields, in the range of 100% of theory (based on methyl bromide), are independent of variations in excess quantitites of trimethylamine. C-14 methyl bromide is effectively derived from an intermixture of C-14 methyl iodide with methyl bromide in the ratio of 1:350. A series of preparations from aliquots of the stock CH3I/CH3Br mixture result in reproducible yields and specific activities of 1.8% average deviation.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1963
Accession Number
AD0403407

Entities

People

  • Andrew F. Smetana
  • Jerome Haberman
  • Thomas C. Castorina

Organizations

  • Picatinny Arsenal

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Alcohols
  • Benzoic Acids
  • Counters
  • Crystal Lattices
  • Efficiency
  • Equations
  • High Vacuum
  • Liquids
  • Materials
  • Methanols
  • Military Research
  • Munitions
  • New England
  • Ordnance Laboratories
  • Partial Pressure
  • Scintillation Counters

Fields of Study

  • Chemistry

Readers

  • Analytical Chemistry
  • Organic Chemistry