80-05-7

CAS Nr.:

80-05-7

4,4'-isopropylidenediphenol

EINECS Name:

4,4'-isopropylidenediphenol

201-245-8

EINECS Nr.:

201-245-8

Bisphenol A / 2,2-Bis-(4-hydroxyphenyl)-propan / 4,4'-Isopropylidendiphenol / p-Diphenol-2-propan / p-Diphenoldimethylmethan / 4,4'-Diphenoldimethylmethan / 4,4'-Dimethylmethandiphenol / 2-Propan-diphenol-4,4' / 4,4'-(Dihydroxybenzol)-2-propan / 4,4'-(Dihydroxybenzol)- / 2,2-Bis-(4-hydroxyphenyl)-propane / 4,4'-Isopropylidendiphenol

Synonym:

Bisphenol A / 2,2-Bis-(4-hydroxyphenyl)-propan / 4,4'-Isopropylidendiphenol / p-Diphenol-2-propan / p-Diphenoldimethylmethan / 4,4'-Diphenoldimethylmethan / 4,4'-Dimethylmethandiphenol / 2-Propan-diphenol-4,4' / 4,4'-(Dihydroxybenzol)-2-propan / 4,4'-(Dihydroxybenzol)- / 2,2-Bis-(4-hydroxyphenyl)-propane / 4,4'-Isopropylidendiphenol

Bisphenol A, commonly known as BPA, is a widely utilized chemical raw material recognized for its significant role in various industrial applications. Identified by the CAS number 80-05-7, Bisphenol A is known for its unique physical properties and versatility. BPA is a synthetic organic compound belonging to the diphenylmethane derivatives group, characterized by two hydroxyphenyl groups.

Physical Properties

Bisphenol A has a molecular weight of 228.29 g/mol and appears as a white solid in its pure form. It has a melting point of approximately 158 to 159 degrees Celsius and a boiling point of 220 degrees Celsius at a pressure of 4 mmHg. BPA is only slightly soluble in water (300 mg/L at 25°C) but is highly soluble in organic solvents such as acetone, ethanol, and benzene. These solubility properties make BPA particularly suitable for various industrial processes.

Applications of Bisphenol A

Bisphenol A is a crucial component in the manufacturing of polycarbonate plastics. These plastics are known for their high strength, transparency, and heat resistance. Polycarbonate is used in a wide range of products, including CDs, DVDs, eyeglass lenses, and impact-resistant windows.

BPA is also used in the production of epoxy resins. These resins are renowned for their excellent adhesive and sealing properties as well as their chemical resistance. Epoxy resins are applied in coatings, paints, adhesives, and as sealants in the electronics industry.

Bisphenol A is utilized in the production of thermal paper, which is used for receipts, tickets, and labels. BPA acts as a color developer that triggers a chemical reaction when heated, resulting in image or text formation.

Dental Materials: In dentistry, BPA is used in some composite materials and sealants. These materials offer strong adhesion and are form-stable, making them ideal for dental fillings and other dental applications.

Bisphenol A (CAS No. 80-05-7) is a chemical raw material with diverse physical properties that make it suitable for a wide range of industrial applications. From the production of robust polycarbonate plastics to its role in epoxy resins and thermal paper, BPA is an indispensable component of modern technology and manufacturing. Despite its versatile uses, it is essential to consider the health and environmental impacts of BPA and to explore sustainable alternatives.