Classification of dyes - direct dyes, Chemistry

Assignment Help:

Classification of dyes according to their application

Direct dyes:

this type of dyes can be directly applied to the fiber, both vegetable and animal, by dipping in hot aqueous solution of the dye. This type of dyes is most significant for those fabrics that can form hydrogen bonds, that is for rayon, wool, silk, cotton and nylon. Congo and Martius yellow red work as direct dyes. Instances are: Martius yellow, congo red.


Related Discussions:- Classification of dyes - direct dyes

Position isomerism - organic chemistry, Position isomerism: It is due ...

Position isomerism: It is due to the difference in the position of the substituent atom or group or an unsaturated linkage in similar carbon chain. A. Carboxylic, aldehydes

Given free energy, Br2(g)=2Br(g) dG=161.69KJ/mol at 298.15K Find kc and kp....

Br2(g)=2Br(g) dG=161.69KJ/mol at 298.15K Find kc and kp.

The oxygen of the hydronium ion, The oxygen of the hydronium ion The ox...

The oxygen of the hydronium ion The oxygen of the hydronium ion has approximately tetrahedral geometry and is therefore sp 3- hybridized. Two of the sp 3 hybrid orbitals conta

Minimum reflux ratio for the separation, Crude oil is separated into severa...

Crude oil is separated into several fractions, each of these fractions are composed of many undefined hydrocarbon components. For simplicity, the crude oil is assumed to be a mixtu

Define about crystal field theory, Q. Define about Crystal Field Theory? ...

Q. Define about Crystal Field Theory? This theory is based on two main assumptions. First, all the ligands are considered as point (negative) charges. It means that the size an

Electrochemistry, Explain construction & working of calomel electrode.

Explain construction & working of calomel electrode.

Acyl chloride , what is the mechanism of acyl chloride reaction with alcoho...

what is the mechanism of acyl chloride reaction with alcohol and why does it react in this way ?

Agar agar, Why agar agar is called as an inert electrolyte?

Why agar agar is called as an inert electrolyte?

Pick out the isoelectronic structures from the following, Pick out the isoe...

Pick out the isoelectronic structures from the following :                               CH + 3 ,    H 3 O +       NH 3        CH - 3                                 I

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd