acid dye


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.
Related to acid dye: basic dye, direct dye

acid dye

n.
Any of a class of dyes that contain acidic groups, usually in the form of sodium or potassium salts, and are used in staining cytoplasm and various acidophilic structures of cells or tissues. Also called acid stain.
References in periodicals archive ?
The treatment and decolorouring of textile dye waste containing acid dyes by conventional chemical and biological methods is rather difficult.
In acidified solutions the carboxyl groups are neutral while the nitrogen-containing groups tend to be positively charged, and this class of fibre interacts strongly with acid dyes.
Keywords: Acid dyes, Data color spectrophotometer, Maldi-TOF mass spectra-negative ion mode.
3] mmol/g, which did not differ significantly for basic and acid dyes [16].
Among the topics are hydrotalcites as catalysts and catalyst precursors for synthesizing biodiesel, the adsorption of acid dyes on hydrotalcite-like anionic clays, recent developments in clay-based functional coating for corrosion protection, drug delivery using nano-sized layered double hydroxide, and progress in the one-pot synthesis of methyl isobutyl ketone using catalysts based on multifunctional layered clay.
Khedr, "Capacity of activated carbon in the removal of acid dyes subsequent to its thermal treatment," Dyes and Pigments, vol.
Decolourization of textile wastewater containing acid dyes in UASB reactor system under mixed anaerobic granular sludge, Electronic Journal of Environmental, Agricultural and Food Chemistry 5(1): 1224-1234.
Dyes that require less rinsing are acid dyes and food-safe dyes.
These desalinated acid dyes are offered as a solution in 1-methoxy-2-propanol for water - and solvent-based systems.
For this reason, large quantities of polyamide fibers are bath-dyed, using special dyes such as acid dyes.
You cannot dye them and if you do you will need acid dyes which are any way harmful so offset hues also become a pre-requisite in India.