Asked by: Djily Eulaliascience genetics
What is the density of Dibenzalacetone?
Last Updated: 24th April, 2021
|Flash Point:||176.1±20.6 °C|
|Index of Refraction:||1.650|
|Molar Refractivity:||77.6±0.3 cm3|
|#H bond acceptors:||1|
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Similarly, why is Dibenzalacetone yellow?
Pure dibenzalacetone is a pale-yellow solid that does not dissolve in water, but dissolves in ethanol. This is because it's a symmetrical, non-polar molecule. dba is often mentioned in organic chemistry classes, to show how it's created in a reaction with benzaldehyde + acetone.
Similarly, what is the melting point of Dibenzalacetone? In the synthesis of dibenzalacetone by aldol condensation of acetone with benzaldehyde1 the primary product melts at 110-112° C and has a intense uv absorption at 330 nm. Two other isomers are known.
Also to know is, why does Dibenzalacetone absorb UV light?
This is because dibenzalacetone absorbs UV light and helps to protect the skin from the sun's damaging rays. The properties that are most valuable in a compound that is used in sunscreen are the compound's abilities to absorb, reflect, or even scatter the harmful UV rays.
How do you make Dibenzalacetone?
- Take a conical flask add 10ml freshly distilled benzaldehyde and 20ml of acetone.
- Place the flask in cold water bath and then add 2.5ml sodium hydroxide dropwise with constant stirring.
- Maintain the temperature at 30oC.
- After the complete addition of sodium hydroxide stir the mixture for 2 hours.