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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).
What else can I help you with?
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?
Phenyl azo beta naphthol is not a saturated compound. It contains multiple double bonds in its molecular structure, which makes it unsaturated.
What colors make naphtol?
Naphthol is typically produced as a red or yellow crystalline powder, depending on its chemical structure. The red form of naphthol is typically created from naphthol AS pigment, while the yellow form is produced from naphthol yellow dye.
Is 2-naphthol soluble in sodium hydroxide?
Yes, 2-naphthol is soluble in sodium hydroxide due to the formation of the sodium salt of 2-naphthol. Sodium hydroxide is a strong base that can deprotonate the hydroxyl group of 2-naphthol, leading to its solubility in the alkaline solution.
What is Amino-naphthol sulfonic acid?
Amino-naphthol sulfonic acid is a compound that is often used in the textile industry as a dyeing agent. It is a type of acid dye that can be applied to protein-based fibers like wool and silk. It is known for its ability to produce vibrant and colorfast dye shades.
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?
Phenyl azo beta naphthol is not a saturated compound. It contains multiple double bonds in its molecular structure, which makes it unsaturated.
What kind of compound is a-naphthol?
A-naphthol is a type of organic compound known as a naphthol, which is a phenol derivative. It consists of a naphthalene ring structure with a hydroxyl group attached at the alpha position. A-naphthol is commonly used in the production of dyes and pigments.
What colors make naphtol?
Naphthol is typically produced as a red or yellow crystalline powder, depending on its chemical structure. The red form of naphthol is typically created from naphthol AS pigment, while the yellow form is produced from naphthol yellow dye.
Would you need to use sodium carbonate for the diazotization of m-nitroaniline?
You need to use sodium carbonate when you are attempting to diazotize a poorly soluble acid, such as sulfanilic acid. m-nitroaniline isn't acidic, so adding sodium carbonate would have no effect.
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.
What kind of compound is alpha naphthol?
Alpha-naphthol, also known as 1-naphthol, is an aromatic organic compound and a type of naphthol, which is a phenolic compound. It consists of a naphthalene ring with a hydroxyl (–OH) group attached to one of the carbon atoms. This compound is primarily used in the production of dyes, as a precursor for various chemicals, and in the synthesis of pharmaceuticals. Its properties and structure make it an important compound in both industrial and laboratory applications.
Is a-naphthol a solid or liquid at room temperature?
At 20 oC it is solid
Is 2-naphthol soluble in sodium hydroxide?
Yes, 2-naphthol is soluble in sodium hydroxide due to the formation of the sodium salt of 2-naphthol. Sodium hydroxide is a strong base that can deprotonate the hydroxyl group of 2-naphthol, leading to its solubility in the alkaline solution.
What is Amino-naphthol sulfonic acid?
Amino-naphthol sulfonic acid is a compound that is often used in the textile industry as a dyeing agent. It is a type of acid dye that can be applied to protein-based fibers like wool and silk. It is known for its ability to produce vibrant and colorfast dye shades.
