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

The nucleus of an element contains 9 protons. its valency, The nucleus of a...

The nucleus of an element contains 9 protons. Its valency would be : (1) 1        (2) 3        (3) 2        (4) 5 Ans: 1

Find the concentration of hydrogen ions, An aqueous solution has a hydroxyl...

An aqueous solution has a hydroxyl concentration of 1.75 x 10^-7mol/L. Find the concentration of hydrogen ions in this solution.

Chromatography, The process of chromatography involves passing a mixture di...

The process of chromatography involves passing a mixture dissolved in the "mobile phase" through a stationary phase, which separates the analyte which is to be measured from the ot

Rayon - semi synthetic polymers, Rayon - Semi Synthetic Polymers Rayon ...

Rayon - Semi Synthetic Polymers Rayon is a man made material which contains purified cellulose in the type of long fibres. Cellulose is reacted along with cold NaOH solution to

Gum, what makes gum chewy

what makes gum chewy

Alkane, Ask question pls tell me the reaction of ethane and chlorine#Minimu...

Ask question pls tell me the reaction of ethane and chlorine#Minimum 100 words accepted#

How are p-type and n-type semiconductor obtained, How are p-type and n-type...

How are p-type and n-type semiconductor obtained? A P-type semiconductor is attained by carrying out a process of doping which is adding a certain type of atoms to the semicon

Non-metals - hydrogen, HYDROGEN Hydrogen is the natural element in the ...

HYDROGEN Hydrogen is the natural element in the Universe and is a major constituent of stars. It is relatively much less common on Earth but nevertheless forms nearly 1% by mass

Illustrate saturated and unsaturated hydrocarbons, Q. Illustrate Saturated ...

Q. Illustrate Saturated and Unsaturated Hydrocarbons? Ans. The term hydrocarbon is similar to the term organic. The term hydrocarbon emphasizes the fact that these compou

Which of the sub-shell is circular, Which of the sub-shell is circular: ...

Which of the sub-shell is circular: (1) 4s                      (2) 4f         (3)  4p                 (4) 4d Ans: 4s

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