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

CHEMICAL ANALYSIS, I WANT TO DISCUSS ABOUT IRON CHEMICAL ANALYSIS.POSSIBLE ...

I WANT TO DISCUSS ABOUT IRON CHEMICAL ANALYSIS.POSSIBLE THAT?.

Gillman reagent, rectivtiy of gillman reagent on cyclic alkyl halides is go...

rectivtiy of gillman reagent on cyclic alkyl halides is govern by what factors,,what is the product bicyclo[2,2,1] dibromide reacts with gillman reagent

The strongest bond, Which one is the strongest bond: (1) Br- F    (2...

Which one is the strongest bond: (1) Br- F    (2)  F-E                             (3)  Cl-F                   (4)  Br- Cl Ans: Br- F

Steric effect, steric effect affecting the end product of organic compound

steric effect affecting the end product of organic compound

The quantum number which may be designated, The quantum number which may be...

The quantum number which may be designated by s, p, d,   and f instead of number is: (1)  n                      (2)  l               (3) m 1

Dyes, Conditions which a dye must satisfy and describe them

Conditions which a dye must satisfy and describe them

Filtration, why is filtration in soil and water a slow process and explain ...

why is filtration in soil and water a slow process and explain the colour change in the filtrate

The number of electrons involved, The number of electrons involved in the b...

The number of electrons involved in the bond formation of N 2   molecule : (1) 2   (2) 4    (3) 6                               (4) 10 Ans: 6

Technique error affect the reported activation energy, 1. The temperature o...

1. The temperature of the warm water bath is recorded too high. How will this technique error affect the reported activation energy for the reaction - too high or too low? explain

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