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Actually beta naphthol is not used in diazotization.It is used to confirm the formation of diazonium salt.Because the diazonium salt so formed undergo the COUPLING REACTION with beta naphthol to form a ORANGE DYE or DYESTUFF. eg. aniline with HCl and Sodium Nitrite followed by the treatment with beta naphthol in NaOH at 0-5 degree celcius forms Phenyl azo-beta naphthol(orange).
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∙ 12y ago
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What is the melting point of phenyl-azo beta-naphthol?
The melting point of phenylazo- beta-naphthol is somewhere from 131 to 133 degrees Celsius. Phenylazo- beta-naphthol is also called as Sudan I.
Is phenyl azo beta naphthol saturated or not?
not saturated
What is Amino-naphthol sulfonic acid?
Amino naphthol sulfonic acid is reducing agent used in estimation of phosphorus by fiske subarao method
Diazotization is which order reaction?
1 order
What you add firstly in carbohydrate solution either H2SO4 or 1-naphthol?
what is the intermediate after adding H2SO4 on naphthol?
What is the difference between alpha and beta naphthol?
alpha naphthol with CCl4(carbon tetrachloride) gives blue colour whereas beta naphthol with CCl4 gives no colour. that is the distinction test between alpha and beta naphthol.
What is the melting point of phenyl-azo beta-naphthol?
The melting point of phenylazo- beta-naphthol is somewhere from 131 to 133 degrees Celsius. Phenylazo- beta-naphthol is also called as Sudan I.
Is phenyl azo beta naphthol saturated or not?
not saturated
What is Amino-naphthol sulfonic acid?
Amino naphthol sulfonic acid is reducing agent used in estimation of phosphorus by fiske subarao method
What are the Pharmacological uses of 4-nitrobenzene azo naphthol?
It is a dye used for fuels.
What is a white crystalline solid having two isomeric forms used in dyes?
naphthol
What is the melting point of alpha naphthol?
The melting point of alpha naphthol is 95-96 oC.
Diazotization is which order reaction?
1 order
What you add firstly in carbohydrate solution either H2SO4 or 1-naphthol?
what is the intermediate after adding H2SO4 on naphthol?
Is 2-naphthol soluble in toluene?
Yes
What is latest price of b naphthol?
$549.00
How could you seperate benzophenone from a-naphthol?
The melting point for lauric acid is about 45 degrees while it is 121 degrees for naphthol. So, in a mixture repeated cycles of slow warming and cooling should separate out lauric acid from naphthol. You can improve the efficiency by adding a dash of slightly acidic 70% isopropyl alcohol. This will deprotonate the lauric acid while maintaining the proton on naphthol during this process to enhance separation and purification of the two compounds. You could also flat-out distill the two products by maintaining the temperature of the solution at the boiling point of lauric acid to separate it from naphthol.
