English

Noun

ketine ‎(plural ketines)

1. (chemistry) Any of a series of organic bases obtained by the reduction of compounds related to the nitrogenous radical NOH of the ketones. Typically, they are unstable oily substances with a pungent odor.
   • 1894, August Bernthsen, A Text-book of Organic Chemistry, page 530:

     Pyrazine, aldine, C₄H₄N₂ (colourless prisms, M. Pt. 55°, B. Pt. 115°), possesses a basic character (B. 26, 721) and is the mother substance of the ketines, e.g. Ketine or dimethyl-pyrazine, C₄H₂ (CH₃ )₂ N₂ , which is obtained by the reduction of isonitroso-acetone or the condensation of amido-acetone (p. 157; B. 19, 2524; 21, 19).

   • 2011, James H. Clark & ‎Fabien Deswarte, Introduction to Chemicals from Biomass, ISBN 1119964431, page 5-48:

     Fast pyrolysis of biomass occurs usually at 500-700 °C and high heating rates (e.g. 300 °C min^-1) over a short time, e.g. pyrolysis of pine wood samples at 550 °C results in the release of high amounts of aldehydes, ketines and methoxylated phenol.

   • 2013, Roy D Cullum, Handbook of Engineering Design, ISBN 1483102017, page 40:

     ABS materials are however susceptible to chemical attacks by chlorinated solvents, esters, ketines, acids and alkalis.