Definition of pyrogallol : a poisonous bitter crystalline phenol C6H6O3 with weak acid properties that is usually obtained by pyrolysis of gallic acid and used especially as a mild reducing agent (as in photographic developing)

What is meant by pyrogallol?

Definition of pyrogallol : a poisonous bitter crystalline phenol C6H6O3 with weak acid properties that is usually obtained by pyrolysis of gallic acid and used especially as a mild reducing agent (as in photographic developing)

What is pyrogallol in organic chemistry?

pyrogallol, also called pyrogallic acid, or 1,2,3-trihydroxybenzene, an organic compound belonging to the phenol family, used as a photographic film developer and in the preparation of other chemicals.

What is the Iupac name for pyrogallol?

IUPAC Name. benzene-1,2,3-triol. Alternative Names. pyrogallol. 1,2,3-trihydroxybenzene.

What is pyrogallol tannin?

A hydrolyzable tannin or pyrogallol-type tannin is a type of tannin that, on heating with hydrochloric or sulfuric acids, yields gallic or ellagic acids. At the center of a hydrolyzable tannin molecule, there is a carbohydrate (usually D-glucose but also cyclitols like quinic or shikimic acids).

How do you make pyrogallol?

Dissolve 20 g of resublimed pyrogallol in water, add 10 ml of conc. HCl and 2 g of SnCl2. 2H2O (dissolved in 5 ml of conc. HCl), and dilute the solution with 0.1 M HCl to 100 ml.

Is pyrogallol a polyphenol?

Pyrogallol (1,2,3-trihydroxybenzene) is a polyphenol found various of fruits and vegetables such as avocado and apricot.

How do you dissolve pyrogallol?

Is pyrogallol an antioxidant?

Numerous additives have been used and developed to overcome this problem such as the application of phenolic compound-based antioxidants. Pyrogallol is reported to be one of the best phenolic antioxidants for biodiesel.

Is pyrogallol water soluble?

Pyrogallol is an organic compound with the formula C6H3(OH)3. It is a white, water-soluble solid although samples are typically brownish because of its sensitivity toward oxygen.

What is pyrogallol used for?

Definition of pyrogallol : a poisonous bitter crystalline phenol C6H6O3 with weak acid properties that is usually obtained by pyrolysis of gallic acid and used especially as a mild reducing agent (as in photographic developing) : a poisonous crystalline phenol C6H6O3 formerly used as a topical antimicrobial (as in the treatment of psoriasis)

What are the properties of pyrogallol or pyrogallic acid?

Some of the general properties of the compound pyrogallol or pyrogallic acid are mentioned as follows: The molecular weight of pyrogallic acid or pyrogallol is 126.11 g/mol. The density of the compound is 1.45 g/cm3.

What are the reactions of pyrogallol?

The most important of the reactions of the compound pyrogallol is the reaction of its production. It was first prepared by Scheele in 1786. It was then prepared by the decarboxylation reaction of gallic acid as the reactant. It is this same method of preparation from gallic acid that is used till today for the production of pyrogallol.

Is pyrogallol insoluble in water?

For example, benzene is insoluble in water, but because of the presence of hydroxyl groups, Pyrogallol is a water soluble compound. Of the other names of Pyrogallol included are 1,2,3-Trihydroxybenzene and Pyrogallic acid. Pyrogallol is a white crystalline organic compound.