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What is the name of the process that is used to detect and identify the dyes in Colourings?
Wiki User
∙ 13y ago
i think its chromatography :)
Wiki User
∙ 13y ago
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Discuss on Diazotization of aromatic compound?
conversion of amines into halogen groups. this process called sand mayer reaction. mainly preparation of dyes. amines replaces with hydroxylation
Would water be a suiable solvent for every dye?
-Cationic dyes (basic dyes) are soluble in polar solvents such as water, alcohols -Nonionic Fat-soluble dyes line metal-free azo and anthraquinone dyes are soluble in aromatic and aliphatic hydrocarbons. -Metal-complex dyes are normally soluble in alcohols, ketones, glycoethers
Why azo dyes are resticted for textile dyeing printing?
The azo dyes that are restricted for textile use have been so restricted because they cause skin hypersensitivity and allergies. Not all azo dyes are so restricted--there are eleven azo dyes that are approved for use in food.
What is exhaust method in dyeing?
we wamt the answer about exhaust method. Exhaust methods means dyeing from bath process with Reactive or Direct Dyes. The Dye is exhausted from the bath with the help of salt.
What are the uses of dyes?
clothing mugs mood rings
Can you recycle coloured paper?
Yes, you can. The dyes and inks are washed out in the recycling process.
Are reactive dyes organic or inorganic?
organic compounds as dyes are more reactive because the dying materials are usually organic and binding between similar substances is a fast process.
What is the result in candy chromatography?
The colors will bleed out onto the paper and you would be able to identify what and how many color dyes are in that candy piece.
What types of synthetic dyes are there?
There are may types of dyes but these are the ones I know of. Acid dyes Azoic dyes Basic dyes Chrome dyes Mordant Developed dyes Direct dyes Disperse dyes Reactive dyes Sulphur dyes Vat dyes Raw fibres Velour cloth and furs Batik Tie dyeing BY MAX TURNER
What has the author Glenn M Shaul written?
Glenn M. Shaul has written: 'Fate of water soluble azo dyes in the activated sludge process' -- subject(s): Azo dyes, Hazardous wastes, Toxicology
How do m and M's get their coulour?
The color of M&M's and Skittles comes from food coloring and dyes added during the manufacturing process. These dyes are safe for consumption and are specifically chosen to give each candy its distinctive color.
What was the Ukrainian Easter egg decorated with?
In earlier times, pysanky (Ukrainian Easter Eggs) were decorated with natural dyes and beeswax to create beautiful batik eggs. Nowadays modern chemical dyes are used, but the process is otherwise the same.
What types of dyes are used for different textile fibers Why?
vat dyes acid dyes
What is an ammonia plant?
a ammonia plant makes ammonia by using a special process called the Haber Bosch process they are infamous by their smell, they make fertilizers and sometimes dyes and nylon
How is fabric dyed in factories?
The textile materials are dyed or given color by means of various available dyes and pigments. There are various dyes such as reactive dyes,azoic dyes ,direct dyes,etc. The dyes are selected upon analyzing the properties of material to be dyed.
What is definition of forest based dyes?
the definition is that dyes like colors in the forest like dyes were base
What are UGS dyes?
Ukranian Gift Shop dyes
