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

Terminologies in organic chemistry!, (a) Co-ordination compound A co-ordi...

(a) Co-ordination compound A co-ordination compound contains a central metal atom or cation which is surrounded by a suitable number of anions or neutral molecules and usually re

When an electron drops a higher energy level to low energy, When an electro...

When an electron drops from a higher energy level to a low energy level, then: (1) Atomic number decreases (2) Energy is absorbed (3) Atomic number increases (4) Energ

A Chemical Reaction, In the chemical reaction, Al(s) + CuCl2(aq) --> Cu(s) ...

In the chemical reaction, Al(s) + CuCl2(aq) --> Cu(s) + AlCl3(aq), why did the Copper turn green after being left for a day?

Gibbs free energy and spontaneity, Q. Describe Gibbs Free Energy and Sponta...

Q. Describe Gibbs Free Energy and Spontaneity? Ans. This is the end of the quest to find spontaneity.  Free Energy, or Gibbs Free Energy is a quantity which balances the r

How many electrons are in benzene, There are thirty (30) electrons in benze...

There are thirty (30) electrons in benzene. This contains 24 carbon electrons and 6 hydrogen electrons. There are 12 electrons shared among C and H, and 18 among C and C. (6 electr

Caulometry and electrogravime, Askccomparison between caulometry and electr...

Askccomparison between caulometry and electrogravimetry question #Minimum 100 words accepted#

Hybridisation in organic compounds, Hybridisation in Organic Compounds ...

Hybridisation in Organic Compounds (1) The method of mixing atomic orbitals to form a set of new equivalent orbitals is known as hybridisation. There are three kinds of hybridi

Study of elements of group 16, Q. Study of Elements of group 16? We sha...

Q. Study of Elements of group 16? We shall discuss Group 16 elements, viz., oxygen, sulphur, selenium, tellurium and polonium. These elements are called chalcogens or the ore f

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