Last Updated
：2025/11/21
distillation chaser
Noun
A
substance
used
to
force
a
distillate
in
a
distillation,
as
it
has
a
boiling
point
more
than
that
of
the
substance
to
be
extracted
and
less
than
that
of
the
impurities.
It
is
rarely
used
but
mostly
with
fractional
distillation
when
column
packing
is
used.
As
it
vaporises
it
heats
the
column
packing
and
causes
the
trapped
fluid
to
rise
over.
Japanese Meaning
分留用追い剤：分留において、抽出される物質の沸点よりも高く、不純物の沸点よりも低い沸点を持つ物質を用いることで、分留過程を促進するために使用される。特にカラムパッキングを用いた分留、すなわち分留塔内で蒸気がカラムパッキングを加熱することで捕捉液体が上昇する状況で稀に用いられる。
Sense（1）
A
substance
used
to
force
a
distillate
in
a
distillation,
as
it
has
a
boiling
point
more
than
that
of
the
substance
to
be
extracted
and
less
than
that
of
the
impurities.
It
is
rarely
used
but
mostly
with
fractional
distillation
when
column
packing
is
used.
As
it
vaporises
it
heats
the
column
packing
and
causes
the
trapped
fluid
to
rise
over.
（ plural ）
Quizzes for review
A substance used to force a distillate in a distillation, as it has a boiling point more than that of the substance to be extracted and less than that of the impurities. It is rarely used but mostly with fractional distillation when column packing is used. As it vaporises it heats the column packing and causes the trapped fluid to rise over.
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See correct answer
distillation chaser
When the fractionating column stalled, the chemist added a distillation chaser with an intermediate boiling point to vaporize the packing and force the desired distillate upward.
See correct answer
When the fractionating column stalled, the chemist added a distillation chaser with an intermediate boiling point to vaporize the packing and force the desired distillate upward.
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