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How do you check TLC for thio barbituric acid it wont soluble in any solvent?
Wiki User
∙ 12y ago
Barbituric acid looks like its very polar... it should be soluble in water and acetone, at least.
Visualizing it on a TLC plate is problematic because the compound is not aromatic and thus does not absorb UV. The easiest way to visualize non-UV absorbing compounds on a TLC plate is using an iodine development chamber. In a jar, mix some powdered iodine (I2) crystals* and dry silica gel. Throw in the TLC plate (after running in the appropriate solvent system), shake it a bit, and use forceps to fish it out. The iodine should oxidize the compound on the plate and it should appear as a brown dot. The iodine development chamber can be used pretty much indefinitely. Hope this helps!
- Do all steps in the fume hood... pure iodine is toxic.
Wiki User
∙ 12y ago
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Formic acid is partially soluble in water
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What are the components of barbiturates?
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Don't know :z hurry up and answer so i can finish my homework? Don't know :z hurry up and answer so i can finish my homework?
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Which more soluble an alkene or carboxylic acid?
It depends upon solvent with respect to water, alkenes are not soluble. Carboxylic Acid are soluble but they become less soluble as the chain length increases due to the longer non-polar hydrocarbon chain which can't form hydrogen bonds with water.
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What is an example of tranquilizer?
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To make a saturated solution of benzoic acid using benzene as the solvent how much is need of each?
I can't find a number, but I found this: Benzoic acid is slightly soluble in water, soluble in ethanol, very slightly soluble in benzene and acetone. (see link on the left under Web Links) This implies not very much benzoic acid will dissolve in benzene. This other site (the MSDS for benzoic acid) says this: SOLVENT SOLUBILITY: Soluble in alcohol, ether, benzene, chloroform, acetone, carbon disulfide, oil of turpentine, carbon tetrachloride, fixed and volatile oils; slightly soluble in petroleum ether, hexane. This does make it sound fairly soluble! Hard to say which is right. This can easily be determined by experiment however!
Are all solids equally soluble in the same solvent?
Absolutely not! Using gasoline as a solvent, wax dissolves in it but glass will not dissolve at all. Using water as a solvent, salt dissolves in it but pepper will not dissolve at all. Using hydrofluoric acid as a solvent, glass dissolves in it but wax will not dissolve at all.
