4
BÜCHI
Rotavapor
R-187EL
2 Safety
2.4 Improper use
Any use other than those already listed, and any application
that does not conform with the technical data is deemed to
be a case of mis-use. The customer shall bear sole
responsibility for any damage caused by such mis-use.
The following applications in particular are prohibited:
•
Production and processing of substances which may lead
to spontaneous reactions, e.g. explosives
•
Rotating the filled evaporation flask which is not immersed
in the water bath (risk of breakage)
•
Drying of hard or brittle materials (e.g. stones, soil samples)
which can cause destruction of the evaporating flask
•
Shock cooling of the evaporating flask
The Rotavapor is not designed to be operated with positive
pressure
2.5 General hazards
General hazards arise from:
•
the hot water or oil bath (risk of scalding).
•
polluted solvents which in the course of distillation may
form residues that lead to spontaneous reactions (e.g.
metal hydrides)
•
solvents which can form peroxides (risk of explosion).
•
solvents with low ignition, flash and/or explosion
temperatures.
•
mixtures of unknown composition or with impurities.
•
damaged glassware.
•
combustible gases or solvent vapors which are not
permitted by the explosion proof safety standards.
•
electrostatic charges during operation, e.g. when
decanting combustible solvents and when drying powders.
•
coolant temperatures lower than the distillate´s freezing
point (will diminish the capability of the condenser coils to
cool the vapor, thus causing a build up of solvent vapor
and dangerous positive pressure).
2.6 Safety measures
Regional and local laws and regulations must be observed.
The unit is grounded internally in order to divert electrostatic
charges from the Rotavapor. There are also ways to divert
electrostatic charges from the glass couplings, by connecting
the couplings together with wires, which are also grounded.