Experiments for 'methanol'
Below follows a summary of all experiments, matching your search. Click one of the EXPERIMENT hyperlinks for a complete description of the experiment.
Results for 'methanol':
EXPERIMENT 1
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Methanol gives a colorless gas with nitrite in acidic media. No formation
of NO/NO2. This compound probably is CH3ONO, the nitrite ester of methanol.
The large excess of CH3OH does not prevent formation of nitrosyl thiocyanate.
EXPERIMENT 2
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Methanol and nitrate/nitric acid do not react readily, not even at fairly
high temperature (appr. 90C).
EXPERIMENT 3
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Copper hydroxide is not capable of oxidizing methanol.
EXPERIMENT 4
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Copper sulfate dissolves in methanol quite well. A blue solution is obtained.
Copper chloride dihydrate also dissolves in methanol quite well. A green
solution is obtained.
With thiocyanate a deep brown complex is formed, which dissolves in
methanol, but at higher concentration this precipitates.
With cyanide, a dirty green compound is formed, which, however, quickly
turns white. This probably is copper (I) cyanide.
EXPERIMENT 5
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Copper (II) ions form a complex with DMSO and chloride at the same time. This
is a green complex (somewhat limegreen, however, a little bit more towards pure
green). This complex is soluble in water and probably also is decomposed by
replacement of ligands by water molecules.
EXPERIMENT 6
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Cobalt sulfate dissolves in methanol, albeit not as well as in water. The
liquid obtained is colored quite intensely. The dilute solution of cobalt
sulfate in methanol looks more pink/purple than even the most concentrated
aqueous solution.
With thiocyanate a deep blue complex is formed in methanol.
EXPERIMENT 7
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Potassium dichromate dissolves in methanol, albeit not as well as in water.
Potassium chromate hardly dissolves in methanol. When ammonium thiocyanate
is added, then the liquid becomes deep yellow. Is this due to chromate, or
is this some reaction product from the thiocyanate?
EXPERIMENT 8
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Methanol reacts with nitrites in the presence of acid and of water. A
colorless gas is produced. Is this methyl nitrite? Without the water, or
without the acid, no reaction occurs.
EXPERIMENT 9
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Niobium pentachloride does react with methanol, but not nearly as violently as
phosphorus pentachloride.
EXPERIMENT 10
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Acetyl chloride can be used to make several esters, but with some alcohols, the
reaction is EXCEEDINGLY violent and some dilution is needed to make the
experiment safe.
EXPERIMENT 11
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Triethylamine frequently is used in reactions, where thionyl chloride is used,
in order to capture any HCl formed in the reaction. However, when the only
reactive compounds are thionyl chloride and triethylamine, then these two
compounds react by themselves, giving rise to formation of black material,
which sticks to the glass and is difficult to remove.
EXPERIMENT 12
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Hypochlorite ion forms esters very easily with alcohols. The esters simply are formed from aqueous
solutions. The methyl ester is a colorless gas, which gives extremely powerful explosions when
ignited. The ethyl ester is a very volatile yellow/green oil, which burns with a WHOOSH sound and
which is quite unstable (it easily decomposes). The t-butyl ester is quite stable and can be kept
around for a somewhat longer time. This burns quickly with a sooty flame.
EXPERIMENT 13
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Formation of hypochlorite esters is very easy. With many alcohols, it is
possible to make hypochlorite esters. These esters are very unstable and easily
explode or burn very fiercely when ignited.
All experiments, described here are quite dangerous, use good protection of the
eyes and keep test tubes wrapped in a thichk layer of towels. Do not scale up!
EXPERIMENT 14
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Iodine does not react with nitrite in methanolic solution.
Iodine does react with hydroxide in methanolic solution, a very light yellow
compound is formed. On acidification this gives iodine again.
Iodine does react with red phosphorous in methanolic solution, but the reaction
is slow.
EXPERIMENT 15
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Sodium dichromate anhydrous dissolves in methanol quite well, but does not
react with it. When a little concentrated sulphuric acid is added, then
suddenly a very violent reaction occurs.
With potassium dichromate, this violent reaction does not occur. The latter is
nearly insoluble in methanol and hence it hardly can react with it.
End of results for 'methanol'