Meaning of ketine | Babel Free

Definitions

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.

Examples

“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).”

“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.”

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

CEFR level