mordant

(redirected from mordanting)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.

mordant

 [mor´dant]
1. a substance capable of intensifying or deepening the reaction of a specimen to a stain.
2. to subject to the action of a mordant before staining.

mor·dant

(mōr'dant),
1. A substance capable of combining with a dye and the material to be dyed, thereby increasing the affinity or binding of the dye; for example, alum, a mordant commonly used to promote staining with hematoxylin.
2. To treat with a mordant.
[L. mordeo, to bite]

mordant

adjective Referring to an astringent chemical; caustic, corrosive.

noun A chemical used to set stains in tissue.

Mordants
Sodium chloride, tannic acid, alum, urine, chrome alum; Bouin’s solution can also be used as a mordant.

mor·dant

(mōr'dănt)
1. A substance capable of combining with a dye and the material to be dyed, thereby increasing the affinity or binding of the dye.
2. To treat with a mordant.
[L. mordeo, to bite]
References in periodicals archive ?
The use of potassium dichromate is not recommended for the dyeing of cotton with alkanet as it has not only affected the shade of the dyed sample but its pre- mordanting has severely damaged the fabric in terms of its tensile strength.
Light fastness properties of dyeing depend on the mordant and the mordanting method that are used.
(7) In 1620 in Holland, however, Cornelius Drebbel developed a process of metal mordanting to make another natural dye--cochineal, a red stain derived from insects--colorfast.