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These are prefixes given to heterocyclic compounds that contain nitrogen (azo-) and sulphur (thio-). Suffixes can also be given which reffer to the number of atoms that make up the heterocyclic ring these being -ine (6 membered), -ole (5 membered).
Thus a 5 membered ring containing both sulphur and nitrogen would be classed as a thiazole.
heterocycle-a ring structure which contains one or more atoms that are not carbon e.g pyridine (the most common atoms that replace the carbon are nitrogen, sulphur and oxygen)
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What azo dye is formed when salicylic acid reacts with amino benzoinc acid?
3,4'-dicarboxy-4-hydroxy azo benzene.it is a coupling reaction...........it forms a azo dye.when salicylic acid reacts with amino benzoinc acid.. initially amino benzoinc acidreacts with nitrous acid and hydrochloric acid to form azo group....azo group: -N=N-then that azo compound react with salicylic acid to form an azo dye(3,4'-dicarboxy-4-hydroxy azo benzene).C6H4COOH(OH)-salicylic acidCH2NC6H4CO2H- amino benzoinc acid.H2NC6H4CO2H+HNO2+HCL-->CL-N=N-C6H4COOH(AZO COMPOUND)3,4'-dicarboxy-4-hydroxy azo benzene.(AZO DYE)
What is o in chemistry?
It's the chemical symbol for Oxygen. Is that what you meant?
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 meant by recovery in chemistry?
A synonym is recuperation: recovery of expensive products from wastes, waters, rocks etc.
Mechanism of azo dye Para Red synthesis?
Azo food dyes don't set off allergic reactions as such, though some azo textile dyes can cause your skin to be hypersensitive. The mechanism for why tartrazine increases allergic reactions is not yet known.
What is major difference between thio and hydroxide relaxers?
Hydroxide relaxers are not compatble with thio relaxers, permanent waving, or soft curl permanents because they use a different chemistry. Thio relaxers use thio to breake the disulfide bonds. The high pH of a thio relaxer is needed to swell the hair but it is the thio that breaks the disulfide bonds. Hydroxide relaxers have a pH that is so high that the alkalinity alone breaks the disulfide bonds. Hydroxide relaxers are not compatble with thio relaxers, permanent waving, or soft curl permanents because they use a different chemistry. Thio relaxers use thio to breake the disulfide bonds. The high pH of a thio relaxer is needed to swell the hair but it is the thio that breaks the disulfide bonds. Hydroxide relaxers have a pH that is so high that the alkalinity alone breaks the disulfide bonds.
What is thio group?
Thio is used for sulphur, the groups containing sulphur in organic compounds are thio groups , as thio alcohols and thio ethers.
What has the author William Robert Waldron written?
William Robert Waldron has written: 'The influence of sulphur on the color of azo dyes ..' -- subject(s): Sulphur, Dyes and dyeing, Chemistry, Azo compounds
When was Johnny Thio born?
Johnny Thio was born in 1944.
When did Johnny Thio die?
Johnny Thio died in 2008.
What has the author Saul Patai written?
Saul Patai has written: 'The chemistry of carbon-nitrogen double bond' 'The chemistry of the quinonoid compounds' -- subject(s): Quinone 'Chemistry of the Diazonium and Diazo Groups (Chemistry of Functional Groups)' 'The Chemistry of Amidines and Imidates, Vol. 2' 'Volume 2, Supplement C2' 'The chemistry of the hydrazo, azo, and azoxy groups' -- subject(s): Azo compounds, Azoxy compounds 'Patai's 1992 guide to the Chemistry of functional groups' -- subject(s): Functional groups, Organic Chemistry 'Part 2, The Chemistry of Amino, Nitroso, Nitro and Related Groups, Supplement F2' 'The chemistry of the amino group' -- subject(s): Amino groups 'The chemistry of carboxylic acids and esters' -- subject(s): Carboxylic acids, Esters 'Glossary of organic chemistry, including physical organic chemistry' -- subject(s): Dictionaries, Organic Chemistry 'The chemistry of the carbon-halogen bond' -- subject(s): Organohalogen compounds 'The chemistry of the carbon-nitrogen double bond' -- subject(s): Methylenimine, Organonitrogen compounds, Schiff bases 'Volume 2, The Chemistry of the Hydrazo, Azo and Azoxy Groups' 'The Chemistry of Acid Derivatives (Chemistry of Functional Groups)'
Paper of class 9 chemistry in school ist terms?
Q1:what is meant by chemistry? Q2:In chemistry do you learn? Q3:what is meant by sedimentary rocks and also metamorphic rocks?
When was Thio Li-ann born?
Thio Li-ann was born on March 10, 1968.
What is Thio Li-ann's birthday?
Thio Li-ann was born on March 10, 1968.
What is the birth name of Anatoliy Azo?
Anatoliy Azo's birth name is Azo, Anatoli Georgiyevich.
What is meant by the language of chemistry?
Science and fun
Can you take Aleve and azo together?
can you take aleve with azo
