Benzophenone

Benzophenone is the organic compound, generally abbreviated Ph2CO. It is a white solid that is soluble in organic solvents. Benzophenone is a widely used building block in organic chemistry, being the parent diaryl ketone.

Particular Description
CAS NO. 119-61-9
CHEMICAL FORMULA C13 H10 O
MOLECULAR WEIGHT 182.22190000

Specification

Particular Description
Product Name Benzophenone
Other Names diphenylmethanone
Appearance white crystalline powder
Odar
Assay 98.00 to 100.00
Specific gravity
Boiling Point 305.00 to 307.00 °C. @ 760.00 mm Hg
Boiling Point 170.00 to 171.00 °C. @ 15.00 mm Hg
Melting Point 47.00 to 51.00 °C. @ 760.00 mm Hg
Vapor pressure 0.001000 mmHg @ 25.00 °C.
Flash Point > 212.00 °F. TCC
Solubility in water, 137 mg/L @ 25 °C, alcohol, paraffin oil
Storage Store in a cool and dry place.
Packaging 25kg, 50kg.

Odar Strength

medium , recommend smelling in a 10.00 % solution or less.

Substantivity

394 hour(s) at 100.00 %

Packaging

25kg, 50kg.

Uses

Benzophenone can be used as a photoinitiator in UV(Ultra-violet)-curing applications  such as inks, imaging, and clear coatings in the printing industry. Benzophenone prevents ultraviolet (UV) light from damaging scents and colors in products such as perfumes and soaps.
Benzophenone can also be added to plastic packaging as a UV blocker to prevent photo-degradation of the packaging polymers or its contents. Its use allows manufacturers to package the product in clear glass or plastic (such as a PETE water bottle).Without it, opaque or dark packaging would be required.
In biological applications, benzophenones have been used extensively as photophysical probes to identify and map peptide–protein interactions.
Benzophenone is used as an additive in flavorings or perfumes for “sweet-woody-geranium-like notes.