4.4 Chemical Resistance Table
The Marathon Series is made of materials that are designed to resist
attack from most laboratory chemicals. A variety of materials,
including aluminum and polypropylene, comprise the rotors and
accessories. The Chemical Resistance table shows the suitability of
each material, with different classes of reagents.
Note
: Chapter 5 describes how to clean and remove corrosion from the
chamber, rotors, and accessories. Follow the instructions, and clean
spills promptly, to minimize the effect of corrosive chemicals and
avoid expensive repairs.
Plastic
Metal Other
PA PC PE PP PU NL DN CN NN PS
TI SS AL MB MG RR BN VN PF
Acids,
dilute
or
weak
E E E E G
E F N F E
G
G
F F N F E E E
Acids*,
strong
or
conc.
E N E E F N N N N F N N N N N N F G
N
Alcohols,
aliphatic
E G
E E F E E E N E
E E E E F E E G
E
Aldehydes G
F
G
G
G
G
G
G
F
N
E
E
E
E
E
E
N
E
E
Bases
E N E E N G
N G
F E
E E E E E G G
N N
Esters
G N G
G
N E G
G
E N
E E E E E N N N E
Hydrocarbons,
aliphatic
G F G
G
E N E E E N
E E E E E N E E E
Hydrocarbons,
aromatic
F N G
F N N E E E N
E E E E E N N E E
Hydrocarbons,
halogenated
F N F F N N G
E G
N
E E E E N N N F E
Ketones
G N G
G
N N E E E N
E G
G G E N N N E
Oxidizing
Agents,
strong
F N F F N N N N N N
E F N N N N F E E
Salts
E E E E E E E E E E
E F F F N E E E E
*For Oxidizing Acids, see "Oxidizing
Agents,
strong".
PA - POLYALLOMER
TI - TITANIUM
PC - POLYCARBONATE
SS - STAINLESS STEEL
PE - POLYETHYLENE
AL - ALUMINUM
PP - POLYPROPYLENE
MB - MANGANESE BRONZE
PU - POLYURETHANE
MG - MAGNESIUM
NL - MODIFIED PHENYLENE OXIDE (NORYL)
RR - RUBBER
DN - ACETAL HOMOPOLYMER (DELRIN)
BN - BUNA-N
CN - ACETAL COPOLYMER (CELCON)
VN - VITON
NN - NYLON
PF - PHENOLIC FIBER
PS - POLYSTYRENE
Classification of Resistance
E=
Excellent
G=
Good
F=
Fair
N= Not Recommended
MARATHON Series Operation Manual
33
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