According to the brand of azo red which is used, either scarlet or ponceau is obtained.
If a very blue tone is desired, add to the bath some solution of coccinine (azo red blue touch).
All azo compounds are highly coloured, and in some cases they are direct cotton dyes.
They are divided into mon-azo, di-azo, tri-azo compounds according to the number of azo groups present.
By mixing the various brands of azo red, a very fine ponceau is produced.
azo compounds may become exceedingly complicated in structure.
The name of azo is substituted for Nicholas, as more metrical.
The B brand of the azo Fuchsines gives slightly bluer shades than the above.
They may also be obtained by the oxidation of azo compounds.
azo goes on to say that a plaint may be originated by intollerabilis injuria, in the sense of corporeal injury.
azo- or az-
Containing a nitrogen group, especially one attached at both ends in a covalent bond to other groups: azole.
Containing two nitrogen atoms joined by a double bond, with each nitrogen atom attached to another group.
|azo- or az- |
A prefix that means "containing an azo group attached at both ends to other groups," as in the compound azobenzene.