| 释义 |
rubiacin Chem.|ˈruːbɪəsɪn|
Also -ine.
[f. L. rubia + -(c)in: named by E. Schunck (Ann. Chemie LXVI. 176).]
A yellow colouring matter obtained from madder-root.
1848J. Higgin in Phil. Mag. XXXIII. 284 When heated, rubiacine fuses, blackens, and gives off orange vapours. 1868Watts Dict. Chem. s.v., Rubiacin is found partly in the precipitate produced by acids in the decoction of madder, partly in the residue left after exhausting the root with water. |