The determination of tertiary amines in the presence of primary and secondary amines

Miller, M.L; Keyworth, D.A.

doi:10.1016/0039-9140(63)80164-2

Cited by 4 publications

(2 citation statements)

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“…Similar reactions were used to resolve mono-, di-, and triethanol amine mixtures (70). Bournique and Neuser (23) used differential titration in ethanediol-isopropyl alcohol solvent before and after acetylation to resolve butylamine, ZV-methylaniline and N,Ndimethylaniline, while Miller and Keyworth (131) used phenylisothiocyanate to permit the determination of tertiary amines in the presence of primary and secondary amines. Tetracene was determined in a formicacetic acid solvent mixture by titration with perchloric acid.…”

Section: Methods and Applicationsmentioning

confidence: 99%

Titrations in Nonaqueous Solvents

Harlow¹,

Morman²

1966

Anal. Chem.

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A lthoughthere have been no dra-_£\_ matic "breakthroughs" during the last two years there has been notable advance in several areas. Particularly gratifying is the number of outstanding papers devoted to the fundamentals of nonaqueous equilibria. Not only are some of the more commonly used solvents such as acetonitrile receiving continued attention, but theoretical studies are being extended to solvents of very low7 dielectric constant. There appears to be a trend toward utilizing the newer types of measurements such as nuclear magnetic resonance and toward using several different types of measurements in the same investigation. In some of the recent work, for example, one finds spectrophotometric, conductometric, potentiometric, and solubility measurements combined to achieve an understanding not possible with a single technique. In the area of study concerned with the effect of solvent and acid structure on acidity, new and imaginative ideas have been introduced.

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Section: Methods and Applicationsmentioning

confidence: 99%

Titrations in Nonaqueous Solvents

Harlow¹,

Morman²

1966

Anal. Chem.

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“…The reaction of primary and secondary amines with phenyl isothiocyanate permits the direct titration of tertiary amines in mixtures containing the three classes of amines (101). The titrant is anhydrous HC1 in methyl isobutyl ketone.…”

Section: Acidmentioning

confidence: 99%