Definitions

from The Century Dictionary and Cyclopedia

  • In chem., containing the sulpho group of atoms, HSO3 or HO.SO2, twice in union with carbon: as, anthraquinone disulphonic acid, C14H6O2(HSO3)2, used in the manufacture of artificial alizarin.

Etymologies

Sorry, no etymologies found.

Examples

  • To bleach that dye out I'll have to go over his face with a needle, pore by pore, and hammer in the indigotin disulphonic.

    The Stars My Destination

  • To bleach that dye out I'll have to go over his face with a needle, pore by pore, and hammer in the Indigotin disulphonic.

    Tiger! Tiger!

  • The reason of this different behaviour of the mono - and disulphonic acids is mainly to be sought in their difference of solubility; the monosulphonic acids are not very soluble, and are only capable of giving solutions measuring 10° and 6° Bé, respectively, whereas the disulphonic acid yields an 18° Bé solution, in addition to which the much higher acidity of the latter quickly gelatinises the pelt.

    Synthetic Tannins

  • In addition to phenolic mono - and disulphonic acids (and higher sulphonation compounds), the homologues, cresols, xylenols, and naphthols enter into reaction.

    Synthetic Tannins

  • If a larger proportion of acid be used, then the indigo disulphonic acid is formed, which is fairly easily soluble in water, and gives bluer shades than the former.

    The Dyeing of Woollen Fabrics

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