Hello, is it possible to measure the optical purity of methamphetamine with a Refractometer?
Purity of methamphetamine with a Refractometer
- Thread starter Joker_55555
- Start date
It is quite hard by reason of these issues:
- 1. lack of data
- 2. unstable refraction index (depends on temperature of the sample)
- By Joker_55555
Optical compounds have the same physical and chemical properties, the only difference is in the polarization of light. It does not appear to be measured with a refractometer.
All we need is a polarimeter.
All we need is a polarimeter.
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- By Joker_55555
When tartaric acid reacts with amphetamine, it is no longer a photoactive compound, but becomes a diastereomer. It is in the nature of diastereomers that their properties are different from each other, but before the reaction of racemic amphetamine, it does not show chemical and physical difference.
In nmr analysis, as far as I know, the isomers cannot be distinguished together, but they are mesomers. If you have an example, provide it.
In nmr analysis, as far as I know, the isomers cannot be distinguished together, but they are mesomers. If you have an example, provide it.
- By G.Patton
I don't have an example, read about Two-dimensional nuclear magnetic resonance spectroscopy if you are interested in.
I don't know what do you mean under photoactive compound.
I told about chemical differences. Different reactivity is also partially physical characteristic as spin-spin interaction of atomos in the molecule.
I don't see a reason to continue this thread.
I don't know what do you mean under photoactive compound.
I told about chemical differences. Different reactivity is also partially physical characteristic as spin-spin interaction of atomos in the molecule.
I don't see a reason to continue this thread.
- By Joker_55555
I don't know what do you mean under photoactive compound.
photoactive: I don't mean racemic, it was typed wrong
photoactive: I don't mean racemic, it was typed wrong
- By Joker_55555
I don't have an example, read about Two-dimensional nuclear magnetic resonance spectroscopy if you are interested in.
You need to give an example to prove your claim, as I mentioned before you cannot distinguish optical isomers with nmr, both isomers have the same spin. These two compounds differ only optically.
You need to give an example to prove your claim, as I mentioned before you cannot distinguish optical isomers with nmr, both isomers have the same spin. These two compounds differ only optically.
- By Joker_55555
I don't see a reason to continue this thread.
Yes, I see no reason to continue the discussion, it is pointless. You should read organic chemistry carefully
Yes, I see no reason to continue the discussion, it is pointless. You should read organic chemistry carefully
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- By Joker_55555
I'm sorry that you took my words like that and I'm even more sorry that you blocked me for a month.
So maybe this will clear it up. If you have a dextro substance it turns clockwise. A leavo turns counterclockwise. If you have a racemic mixture that is 50/50. You see no chirality because the net product is 0°. If you have a 60/40 mixture it rotates right but you have no idea how much a 60/40 mix would bend light, unless you just measured a pure isomer at your current temperature, barometric pressure ect