Detailed Product Description:
2-Butanol, or sec-butanol, is a secondary alcohol. It is a flammable,
colorless liquid that is soluble in water and completely miscible with
polar organic solvent such as ethers and other alcohols.
It is a colorless liquid with a vinous odor. It is primarily used as a
solvent, as an intermediate in chemical synthesis, and as a fuel.
This is Reagent Grade with minimum purity of 99.9%.
It is produced on a large scale, primarily as a precursor to the industrial
solvent methyl ethyl ketone. 2-Butanol is chiral and thus can be obtained
as either of two stereoisomers. It is normally found as an equal mixture of
the two stereoisomers — referred to as a racemic mixture. It is manufactured
industrially by the hydration of 1-butene or 2-butene using sulfuric acid as
a catalyst for this conversion.
There are four isomeric structures for butanol:
First, the unmodified term, butanol, usually refers to the straight chain
isomer with the alcohol functional group at the terminal carbon, which is also
known as n-butanol or 1-butanol.
Second is the straight chain isomer with the alcohol at an internal carbon is
sec-butanol or 2-butanol.
Third is the branched isomer with the alcohol at a terminal carbon is isobutanol,
And finally, the branched isomer with the alcohol at the internal carbon is
tert-butanol, or 2-methyl-2-propanol.
Butanol isomers, due to their different structures, have somewhat different
melting and boiling points. n-butanol and isobutanol have limited solubility,
while the other two isomers are fully miscible with water. This is because all
alcohols have a hydroxyl group which makes them polar which in turn tends
to promote solubility in water. At the same time, the carbon chain of the alcohol
resists solubility in water. Methanol, ethanol, and propanol are fully miscible
with water, while n-butanol is only moderately miscible because of the balance
between the two opposing solubility trends.
Although some 2-butanol is used as a solvent, most of the annual production
is converted to butanone ("MEK"), which is an important industrial solvent
found in many domestic cleaning agents and paint removers. Volatile esters
of 2-butanol have pleasant aromas and are used in small amounts as perfumes
or in artificial flavors.
Like many alcohols, 2-butanol is considered toxic. It has shown a low order of
toxicity in single dose experiments to laboratory animals and is considered safe
enough for use in cosmetics. Brief, repeated overexposure with the skin can
result in depression of the central nervous system, as with other short-chain
alcohols. Exposure may also cause severe eye irritation and moderate skin
irritation. The main dangers are from prolonged exposure to fumes. In
extreme cases this includes suppression of the central nervous system and
even death. Under most circumstances, butanol is quickly metabolized to
carbon dioxide. It has not been shown to damage DNA or cause cancer.
Download, read, and understand the Material Safety Data Sheet and
the precautions associated with the use of this substance.
Click here to download MSDS (Material Safety Data Sheet)
Comes packed in 250ml amber glass bottle. Also available in 500ml size.