123-31-9

CAS Nr.:

123-31-9

1,4-Dihydroxy-benzol

EINECS Name:

1,4-Dihydroxy-benzol

204-617-8

EINECS Nr.:

204-617-8

Hydrochinon technisch / 1,4-Dihydroxybenzol / Benzol-1,4-diol / Benzen-1,4-diol / Eldoquin / Chinol

Synonym:

Hydrochinon technisch / 1,4-Dihydroxybenzol / Benzol-1,4-diol / Benzen-1,4-diol / Eldoquin / Chinol

Hydroquinone, also known by CAS number 123-31-9, is an important chemical raw material used in many industrial and commercial applications. This organic compound is known for its specific physical properties and versatile uses.

Physical Properties of Hydroquinone

Hydroquinone is a white crystalline solid with a molar mass of 110.11 g/mol. It has a melting point of about 172-174°C and a boiling point of 285°C. Hydroquinone is moderately soluble in water, but it dissolves well in alcohol, ether, and acetone. The chemical structure of hydroquinone gives it antioxidant properties, making it particularly useful in various applications.

Applications of Hydroquinone

Hydroquinone is commonly used as a developer in photography. Its antioxidant properties enable the reduction of silver halides to metallic silver, promoting the development of photographic films and papers. It plays a central role in the black-and-white photography process and is essential for producing high-quality photographic products.

In the cosmetic industry, hydroquinone is used as a skin lightener. It helps reduce the production of melanin, leading to the lightening of skin discolorations and age spots. Due to its effectiveness, it is a common ingredient in creams and serums for treating hyperpigmentation. However, the use of hydroquinone in cosmetic products is strictly regulated in some countries to minimize potential health risks.

Hydroquinone is also used in the polymer industry as a stabilizer. It prevents unwanted polymerization of monomers during storage and processing, improving the quality and consistency of final products. This property makes hydroquinone an important additive in the production of plastics and synthetic resins.

In the chemical industry, hydroquinone is used as an intermediate in the synthesis of various chemical compounds. It serves as a starting material for the production of antioxidants, dyes, and pharmaceutical products. The versatile reactivity of hydroquinone makes it an indispensable raw material in organic chemistry.

In summary, hydroquinone is an essential raw material in many industrial sectors due to its unique physical properties and versatile applications. Its ability to function as a developer in photography, a skin lightener in cosmetics, a stabilizer in the polymer industry, and an intermediate in chemical synthesis makes it a crucial component of modern industrial processes.