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

Determination of acid insoluble ash of flour sample., I want to know how to...

I want to know how to determine the acid insoluble ash of a flour sample with principle,procedure as well as calculations.

Explain in detail about the b-h hysteresis curve, How does B-H hysteresis c...

How does B-H hysteresis curve be understood in terms of domain growth and domain rotation? There are two possible ways to align a random domain structure by applying an electr

What is the origin of fossil fuels, Q. a. What is the origin of fossil fuel...

Q. a. What is the origin of fossil fuels?      b. List three fossil fuels.      c. Are fossil fuels a renewable resource? Answer: a. Coal, natural gas and oil. b. Fossil fue

Alkyl groups - iupac system of naming organic compounds, Alkyl groups - IUP...

Alkyl groups - IUPAC System of Naming Organic Compounds These groups involves one hydrogen atom less as compared to the alkane. These groups are named by substituting the suff

Acidity, A sample of water collected in the field had a pH of 6.8. By the ...

A sample of water collected in the field had a pH of 6.8. By the time it was analyzed in the lab, the pH had decreased to 6.0. Give a possible explanation.

Anode mud in electro refinig of copper., Name the common element present in...

Name the common element present in the anode mud in electro refinig of copper. Ans) ANTOMONY ,STRONSIUM,SELENIUM,TELLURIUM,SILVER,GOLD AND PLATINUM . THESE ELELMENTS ,BEING LESS R

A covalent bond between two atoms, A covalent bond between two atoms is for...

A covalent bond between two atoms is formed by which of the following: (1) Electron nuclear attraction  (2) Electron sharing  (3) Electron transfer (

Atoms or group of atoms which are electrically, Atoms or group of atoms whi...

Atoms or group of atoms which are electrically charged are known: (1) Anions                                           (2) Cations       (3) Ions (4) Atoms Ans:

Define the term - local electric field and polarization, Define the term - ...

Define the term - Local electric field and Polarization Local electric field: It's the sum of the electric field from external sources and field of the dipoles within the spe

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