Chapter 3: Getting Started
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16
Original instructions
C- Moderate Degradation- Questionable Use
D- Severe Degradation- Infrequent use recommended- immediate thorough cleaning required
If a rotary vane vacuum pump is used, most compounds used in the RapidVap
will degrade the oil if allowed to enter the pump. Generally, a rotary vane
pump is not suitable for use with the RapidVap.
Diaphragm vacuum pumps sold by Labconco have wetted parts either made
from PTFE or protected by PTFE coatings and are suitable for nearly all
procedures.
Glass lids are suitable for use with all common compounds.
When using compounds in the RapidVap that are hostile to the materials of
construction, it is imperative that the equipment is properly maintained.
After each run, clean up all residues, spills, and materials that might have
splashed in the chamber using agents suitable for the substance involved.
When using a rotary vane pump the oil in the pump should be checked often. It
must be changed if it is cloudy, shows particles or is discolored. The useful life
of vacuum pump oil can be extended if the vacuum pump is operated for an
extended period of time after the RapidVap run is over. This allows
contaminants to be purged from the hot oil. This must be done with the inlet to
the pump blocked off to prevent air from free flowing through the pump. If the
pump is operated at an elevated vacuum level, oil will be expelled from the
pump and damage will occur.
Acids
Bases
Solvents
COMPONENT
MATERIAL
A
c
eti
c
A
c
id
20
%
B
oric
A
c
id
F
ormi
c
A
c
id
Hy
drobr
om
ic
A
c
id 2
0
%
Hy
droc
hl
oric
A
c
id
20
%
Ni
tr
ic
A
c
id
20
%
S
ul
furi
c
A
c
id
10
%
T
ri
fl
u
oroac
et
ic
A
c
id (T
F
A
)
A
mm
on
ium
Hy
drox
id
e
P
ota
s
s
ium
Hy
dr
ox
ide
A
c
eto
n
e
A
c
eto
n
itr
ile
Chl
or
ofo
rm
Di
me
thy
l F
orma
mi
d
e
Di
me
thy
l
S
u
lfox
ide
(
D
MS
O
)
E
tha
no
l
E
thy
l
A
c
et
ate
Hex
an
es
Is
op
rop
o
na
l
Me
thy
len
e
Ch
lori
de
T
ol
ue
ne
Manifold N2/48
Acetal
C
C C D D D
C
D
C
Exhaust Elbow N2
Polyamid (Nylon) D D D D D D D
C
D C
Blower Fan N2
Polyamid (Nylon) D D D D D D D
C
D C
Exhaust Hose N2
Polyethylene
C
C C
C C C C
Vacuum Fittings
Polypropylene
C
C
Blower Housing N2 Polypropylene
C
C
Vacuum Hose
PVC
D C
D D
D D D D C D D D D
Trim Ring
Bromyl Butyl
C D
D D D
D D D
O- Rings
Neoprene
D D C D D
C D D D
D
D D
Block Hardware
Stainless Steel
Nozzle N2
Stainless Steel
D D D
Vacuum Sensor
Stainless Steel
D D D
