Benzophenone

Benzophenone is a widely used organic compound. The compound is synthesized by Friedel-Crafts acylation of benzene with benzoyl chloride in the presence of an aluminum chloride catalyst.

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Description

Description

Chemical name: Benzophenone

CAS No. 1:19-61-9
Appearance: White to almost white crystal.
Purity: 97.0%~103.0%.

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project	Indicators
project	pharmacy class I	pharmacy class Ⅱ	Regular variety
Melting point, degrees	47.5~49.0		47.0~49.0
Purity, % Greater than or equal to	99.80	99.80	99.00
Low-boiling substance, % Less than or equal to	0. 10	0. 10	－
High boiling 1.% Less than or equal to	0.02	0.03	－
High boiling 2.% Less than or equal to	0 02	0 05	－
High boiling 3.% Less than or equal to	0 15	0 20	－
Benzene % Less than or equal to	0.03	0.04	－
APHA Less than or equal to	40	50	70

Application

Benzophenone has applications in many fields such as the chemical industry, pharmaceuticals and cosmetics. In the chemical industry it is used as a photoinitiator for ultraviolet curing of polymerization reactions. This allows the polymerization process to proceed faster under the influence of ultraviolet radiation. Additionally, it acts as a cross-linking agent which helps strengthen the final product.
In cosmetic products, benzophenone serves as an ultraviolet light absorber because it helps protect the skin from harmful UV rays. It can often be found in sunscreens, lip balms and face creams.
It is also used in various other applications such as analytical chemistry, inks and dyes. It is used as a standard reference material for the calibration of analytical instruments in research laboratories.

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