Kerobit® TP 26 and TP 26 P - Aerospace Materials from BASF

Product
Information
BASF Aerospace Materials
Kerobit ® TP 26 and TP 26 P
Antioxidants for Jet Fuel
Oxidation of fuels leads to darkening and thickening as
chemical species are reacting, forming insoluble sludge or
soot particles. Organic acids are produced which are
extremely corrosive. Further oxidation leads to the buildup of
polymeric material which causes gum deposits on pistons,
control valves, injectors and other engineering parts.
Kerobit TP 26 and Kerobit TP 26 P are
antioxidants for jet fuels or solutions of
antioxidants in kerosene, respectively.
They prevent autoxidation and gum
formation and improve storage stability.
Kerobit TP
n Antioxidants for jet fuel
n Prevent autoxidation and polymerization
of jet fuel
n Inhibit formation of organic acids
n Improve storage stability
Kerobit TP 26
n Mixture of sterically hindered phenols
n Liquid
Kerobit TP 26 P
n 75% solution of sterically hindered
phenol in kerosene
For more information on BASF Aerospace Materials:
aerospace.materials@basf.com
www.aerospace.basf.com

Usage guidelines
Kerobit TP 26 and Kerobit TP 26 P antioxidants are based on
sterically-hindered phenols. Unstabilized products from
crackers and cokers are particularly prone to oxidation, as are
hydrocarbons whose natural antioxidant content has been
reduced by deep hydrogenation. Therefore, the Kerobit TP 26
inhibitors are added at an early stage in the refining process in
order to take full advantage of their antioxidant action.
The injection rate shall not be less than 17 mg/l nor exceed 24
mg/l (1.4·10 -4 to 2.0·10 -4 lbs/gal) for Kerobit TP 26 antioxidants
and shall not be less than 23 mg/l nor exceed 32 mg/l
(1.9·10 -4 to 2.7·10 -4 lbs/gal) for Kerobit TP 26 P antioxidants.
The efficiency is evaluated by determination of the potential
gum according to ASTM D 873 (oxidation stability and
potential gum of jet fuel).
Kerobit TP 26 antioxidant grades meet the requirements of
various MIL, DEF, and DERD specifications. Detailed
information is available upon request.
Antioxidant Dosage Rate,
10 -4 lbs/gal
Kerobit TP 26
(liquid)
Kerobit TP 26 P
(75% solution in
kerosene)
www.aerospace.basf.com
Dosage Rate,
mg/l
Regulatory
Compliance
Minimum Maximum Minimum Maximum
1.4 2.0 17 24 DEF STAN 91–91/6:
Qual. Ref. RDE/A/609
1.9 2.7 23 32 DEF STAN 91–91/6:
Qual. Ref. RDE/A/606
BASF Corporation
Aerospace Team
100 Campus Drive
Florham Park, NJ 07932
E‐mail: aerospace.materials@basf.com
Kerobit is trademark of BASF.
Although all statements and information in this
publication are believed to be accurate and reliable,
they are presented gratis and for guidance only, and
risks and liability for results obtained by use of the
products or application of the suggestions described
are assumed by the user. NO WARRANTIES OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE, ARE MADE
REGARDING PRODUCTS DESCRIBED OR DESIGNS,
DATA OR INFORMATION SET FORTH. Statements or
suggestions concerning possible use of the products
are made without representation or warranty that any
such use is free of patent infringement and are not
recommendations to infringe any patent. The user
should not assume that toxicity data and safety
measures are indicated or that other measures
may not be required. © 2011 BASF