Dyes - chemistry in action, Chemistry

Assignment Help:

Dyes

Dye is a synthetic and natural colouring matter that is employed in solution to stain materials particularly fabrics. All the coloured substances are not dyes. A coloured substance is known as a dye if it fulfills the subsequent conditions,

1. It should have an appropriate colour.

2. It may be lasting on the fabric either directly or with the help of mordant.

3. while fixed it must be fast to light and washing, that is it has to be resistant to the action of acids, water and alkalies, majorly to alkalies as washing soda and soap have alkaline nature.


Related Discussions:- Dyes - chemistry in action

D block elements, what is the general electronic configuration of d block e...

what is the general electronic configuration of d block element

Reactions of alkaline earth metals with oxygen, Reactions of Alkaline earth...

Reactions of Alkaline earth metals with oxygen: Write the reactions of any two elements of group II A with oxygen. Ans. Alkaline earth metals react with oxygen to form corr

Insulating vessel having negligible heat capacity, 2 Kg of ice at -20 degre...

2 Kg of ice at -20 degree C is diverse with 5Kg of water 20 degree C in an insulating vessel having negligible heat capacity. Measure the final mass of water remaining in the con

Hybrisation, examples of spd arrangement

examples of spd arrangement

Physical properties of acetic acid, Physical Properties of Acetic Acid ...

Physical Properties of Acetic Acid (a) It is a colourless, at ordinary temperature, corrosive liquid along with a sharp pungent odour of vinegar. It has a sour taste. (b) Be

Ans., Give the styx code of B4 H10 and which type of bond present in it?

Give the styx code of B4 H10 and which type of bond present in it?

Inorganic qualitative analysis, use of ammonium chloride in 3 group of basi...

use of ammonium chloride in 3 group of basic radicals

Explain phenomenon called reverse osmosis, Name a substance which on additi...

Name a substance which on addition to AgCl causes vacation vacancy in it. Mention a large scale use of the phenomenon called 'reverse osmosis'.

Calculate the molar volumes using molar masses, Q. This 16-part problem ill...

Q. This 16-part problem illustrates the use of experimental data from bomb calorimetry and other sources, combined with thermodynamic relations derived in this and earlier chapters

Carbonylcompounds, Why the density of carbonylcompounds is as same as water...

Why the density of carbonylcompounds is as same as water?

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