Questions tagged [optical-properties]
Questions related to color as well as the reflecting and refracting properties of chemicals.
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Liquid crystal structure: Equivalent effect of alkoxy group?
Consider a structure like this,
R - Cy - Cy - Ph - OR'
where Cy represents a cyclohexane ring, Ph is a phenyl ring, and R, OR' is alkyl group and oxygen bonded to different alkyl group.
If 2 ...
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Does mercury fulminate really look like crystal methamphetamine?
In the AMC series Breaking Bad , Walter (aka Heisenberg) smuggles in a bag of mercury fulminate under the guise of crystal methamphetamine and threatens to blow the room up if he doesn't get his money....
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Why some materials are transparent, but other ones aren't?
We have two materials; say glass and wood. Light passes through glass but it doesn't pass through wood. Is it caused by atoms and molecules arranged in glass and wood such that they interact ...
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How do we identify left handed and right handed crystals?
I was going through this article about how Louis Pasteur studied and explained the absence of optical activity in Racemic acid. Here's an extract:
When Pasteur next examined crystals of the same
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Are there any known chemical properties of tritium water that make it unusually different from protium water?
I suppose the first question supporting the main question is, has tritium water ever been synthesized in sufficient quantity to test chemical properties?
If so, and apart from the obvious radioactive ...
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A compound that only absorbs UV-A radiation
As a similar idea to the question A compound that absorbs all visible light, I am curious if there is a compound (or compounds) that absorb UV-A radiation (shown below)?
However, preferable the ...
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What determines the elastic limit of a substance?
from what I know, the elastic limit of a substance is the maximum amount of stress/force/pressure (a bit of confusion on my behalf here) a substance can withstand and still return to its original ...
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Light scattering in sulfur colloids
Recently I did a reaction in the lab (the reaction itself is not important) whose product was colloidal sulfur. As I watched the sulfur particles form I noticed something strange: At first the sulfur ...
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Behaviour of element 111
Is element 111 considered to act as an eka-aurum?
Being under the same column of group 11, which usually provides enough evidence for correlation of properties for an eka-element, would this element ...
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OD660 readings of yeast
I am working on a yeast fermentation project, and I am getting final OD660 reading of 1.85 for different media: yeast extracts+cane molasses, nitrogen source+cane molasses, and glucose+cane molasses ...
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Reason behind Opaque translucent transparent
I would like to know the reason that some materials allow light to pass (transparent), blocks it a little (translucent), or completely reflects or absorbs it (opaque.)
I'm don't have a PhD, so answer ...
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dependence of Intensity on penetration of light
I want to know about a transparent material,In which penetration of light decreases as intensity of light increases.
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Is tetraammine dichloro cobalt (III) an optically active compound?
Is
$$ \text{Co}[{(\text{N}{\text{H}}_{3})}_{4}{\text{Cl}}_{2}]$$
optically active? If so, write its stereo-isomers.
I know that for a compound to be optically active, it should rotate the plane of ...
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Why are there no cheap diamond equivalents?
We recently learned in school that diamonds sparkle as the are very optically dense, meaning that it takes longer for light to pass through them, thus meaning that the light totally internally ...
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What home chemical can I use to make droplet lens?
I'm very interested in making homemade droplet lens, I want to know what home element can I use to cook them.
Here's a video showing the process, with no further information:
https://www.youtube....
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