Rotary Evaporator
4
must be opened before heating and once again after
cooling. When performing vacuum distillation, the
steam must be condensed before release or released
safely.
If the residue after distillation is likely to be
decomposed when exposed to oxygen, please add only
gas for stress release into it.
•
Warning! Please be careful be avoid the formation of
peroxides, as the decomposition of peroxides
accumulated in the distillation process might result in
explosion.
Please protect any liquid forming peroxides from ray
of light, especially ultraviolet irradiation. Please be
careful to examine formation of any peroxides before
distillation and to remove the peroxides if any. Many
organics are easy to form peroxides, such as
methoxypyridine,
diethyl
ether,
dioxane,
tetrahydrofuran, unsaturated hydrocarbostyril, such as
tetrahydronaphthalene,
diene,
isopropylbenzene,
ketone and solutions of the aforesaid substances.
•
Warning! The heating bath, heating medium,
evaporating flask and glass assembly might become
hot in the operation process and remain hot for a while
after stop of the operation! Before further operation,
please let each part cool down.
•
Note: be careful to avoid boiling delay! When the
instrument is not started up and rotated, never heat the
evaporating flask! Sudden appearance of foams or
gases indicates that the medium inside the evaporating
flask begins decomposing. Please immediately shut
down the heating bath and lift the evaporating flask
above the heating bath, keep the surrounding danger
area well ventilated and inform surrounding personnel.
•
Note! When the evaporating flask rotates, never
operate the instrument. Before the motor is started up,
please lower the evaporating flask down to the heating
bath, otherwise the boiling heating medium might
splatter.
•
When operating the instrument, if necessary, please
reduce the motor speed to prevent the medium in the
heating bath from splattering.
•
When operating the instrument, never touch any
rotating parts. Due to the instrument or fabrication
problems, the instrument might be unbalanced,
possibly damaging the glass assembly. When
imbalance
or
abnormal
noise
occurs,
please
