How do you convert naphthalene to phthalic acid?

How do you convert naphthalene to phthalic acid?

Naphthalene on oxidation with potassium permanganate or potassium dichromate gives phthalic acid.

How do you dissolve phthalic acid?

Phthalic acid is very soluble in boiling water, 18 g/100 mL, and is much less soluble in chilled (14°C) water, 0.54 g/100 mL. Thus, water is a very good recrystallization solvent for phthalic acid.

What is the formula of phthalic acid?

C8H6O4
Phthalic acid/Formula

Where is phthalic acid used?

Phthalic Acid Uses Phthalic acid is used mainly in the form of anhydride to produce other chemicals such as dyes, perfumes, saccharin, phthalates, and many other useful products. Plasticizers such as phthalic acid esters (phthalates) are used in a wide range of consumer goods, commodities, and construction materials.

Is phthalic acid harmful?

SYMPTOMS: Symptoms of exposure to this compound may include irritation of the skin, eyes, mucous membranes, and respiratory passages. In high concentrations, it can cause narcosis. PHTHALIC ACID is a carboxylic acid. This chemical is sensitive to exposure to extreme heat.

Is phthalic acid a weak acid?

As a weak acid, phthalic acid reacts vigorously with strong bases. In the air, finely dispersed particles are explosive.

Is phthalic acid corrosive?

Care should be taken when handling phthalic acid as it is highly corrosive and may cause irritation to human skin, eyes and respiratory tracts.

How is nitric acid used to prepare phthalic acid?

A process for the preparation of nitrophthalic acid by the nitration of phthalic acid and/or phthalic anhydride using only nitric acid, said nitric acid having a concentration of at least about 95% by weight, and then recovering the nitrophthalic acid formed from the nitric acid solution.

What is the melting point of phthalic acid?

Melting point: ca. 210 °C, converted into phthalic anhydride with the elimination of water. Gerhartz, W. (exec ed.). Ullmann’s Encyclopedia of Industrial Chemistry. 5th ed.Vol A1: Deerfield Beach, FL: VCH Publishers, 1985 to Present., p.

Can a phthalic anhydride be nitrated in a nitration process?

Unexpectedly, it is now been discovered that phthalic acid and phthalic anhydride may be nitrated to form a mixture of 3- and 4- nitrophthalic acid in a nitration process which employs only nitric acid.

What kind of powder is phthalic acid made of?

Phthalic acid appears as white crystals or fine white powder. (NTP, 1992) Phthalic acid is a benzenedicarboxylic acid cosisting of two carboxy groups at ortho positions. It has a role as a human xenobiotic metabolite.