Benzophenone

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Benzophenone
Image:Benzophenone.png
General
Systematic name Benzophenone
Other names diphenylmethanone
phenyl ketone
diphenyl ketone
benzoylbenzene
Molecular formula C13H10O
SMILES O=C(C2=CC=CC=C2)C1=CC=CC=C1
Molar mass 182.217 g/mol
Appearance white solid
CAS number [119-61-9]
Properties
Density and phase 1.11 g/cm3, solid
Solubility in water insoluble
Melting point 47.9 °C
Boiling point 305.4 °C
Acidity (pKa)  ?
Dipole moment
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and references

Benzophenone, also known as diphenylmethanone, phenyl ketone, diphenyl ketone, or benzoylbenzene. The chemical formula is (C6H5)2CO / Ph2CO. Substituted benzophenones like oxybenzone and dioxybenzone are used in sunscreen. Benzophenone is also used as an indicator for THF stills. The color corresponds qualitatively to the dryness of the still with green and light blue being very wet and dark purple being very dry.

External links

Reference

  • Merck Index, 11th Edition, 1108.


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