PYROGALLOL CAS 87-66-1

CAS: 87-66-1
Summenformel:C6H6O3
Molekulare Gewicht:126.11
EINECS:201-762-9

Synonyms:1,2,3-Trihydroxybenzen; 1,2,3-trihydroxy-benzen; 1,2,3-trihydroxybenzen(czech); 1,2,3-trihydroxybenzene(pyrogallol); 2,3-Dihydroxyphenol; Benzene 1,2,3-trihydroxy-; benzene-1,2,3-triol; C.I. Oxidation Base 32

What is Pyrogallol?

Pyrogallol is a white glossy crystalline powder that is soluble in 2 parts water, 1 part ethanol, or 2 parts ether.Pyrogallol has a bitter taste. Exposed to air and light, Pyrogallol turns gray. Slowly heat up and begin to sublime. Melting point 133-134 ℃, boiling point 309 ℃, relative density 1.453. When exposed to air, the color of the aqueous solution darkens, while its alkaline solution changes color faster.

Spezifikation

Element	Standard
Aussehen	White and lustrous crystalline powder
Inhalt	≥99.00%
Wasser	≤0.50%
Schmelzpunkt	131～136℃
Rückstand auf Zündung	≤0.05%
Chloride	≤0.002%
Sulfate	≤0.01%

Anwendung

1. Industry
(1) In chemical analysis, Pyrogallol is an indispensable deoxygenation analysis reagent used in industries such as nitrogen fertilizer, coking, smelting, and petrochemicals; Used as a strong reducing agent in analyzing gold, silver, mercury salts, etc.
(2) Used as a leather dyeing agent in the leather industry.
(3) Pyrogallol can be used as an inhibitor and anti-aging agent in polymer chemistry.
(4) Pyrogallol is widely used in fine chemicals, textile printing and dyeing, light industry and daily chemical, color printing and plate making, and microelectronic products.
2. Cosmetics: Pyrogallol is used in cosmetics industry for powder, hair conditioner, hair dye, nail polish and other products.
3. Electronic chemicals
(1) Perform color reactions between analytical reagents and metal salts in chemical testing.
(2) Used in the chemical industry to synthesize new photosensitive materials.
(3) Pyrogallol is the main raw material for PAC photosensitizers, which are one of the main raw materials for producing photoresists.

PYROGALLOL application