Ciba® IRGANOX® B 225
Synergistic Processing and Long-Term Thermal Stabilizer System
Characterization IRGANOX B 225 - a processing and long-term thermal stabilizer system - is a syner-gistic
blend of IRGAFOS 168 and IRGANOX 1010.
Chemical Name 50 % IRGAFOS 168 ; 50 % IRGANOX 1010
Applications IRGANOX B 225 is used in polyolefins and olefin-copolymers such as polyethylene,
polypropylene, polybutene and ethylene-vinylacetate copolymers. The blends can also be
used in other polymers such as engineering plastics, styrene homo- and copolymers,
polyurethanes, elastomers, adhesives, and other organic substrates. IRGANOX B 225 can be
used in combination with light stabilizers of the TINUVIN and CHIMASSORB range.
Features/Benefits IRGANOX B 225 is a convenient blend addressing a range of stabilization needs. The
relatively high phenolic antioxidant content of IRGANOX B 225 addresses applications
requiring more long-term thermal stability. In the recommended applications
IRGANOX B 225 provides significant advantages, such as
· Maintenance of original melt flow
· Low color formation
· Improvement of long-term-thermal stability
IRGAFOS 168 - an organophosphite of low volatility and particularly resistant to hydrolysis -
protects during processing organic polymers which are prone to oxidation. IRGANOX 1010 -
a hindered phenolic antioxidant - contributes synergistically to the polymer’s stabilization
Product Forms Code: Appearance:
Powder : powder white, free-flowing powder
FF white, free-flowing granules
Guidelines for Use In polyolefins, the concentration levels for IRGANOX B 225 range typically between 0.1%
and 0.25% depending on substrate and processing conditions. The optimum level is
application specific. Extensive performance data of IRGANOX B 225 in various organic
polymers and applications are available upon request.
Physical Properties Bulk Density powder 530 - 630 g/l
FF 480 - 570 g/l
Handling & Safety IRGANOX B 225 requires no special safety measures, provided the usual precautions for
handling chemicals are observed. Avoid dust formation and ignition sources.
For more detailed information please refer to the material safety data sheet.
Registration The registration status for IRGANOX B 225 is derived from the single components.
The components are registered in: Australia, Canada, China, EU, Japan, Korea, Philippines,
USA
They are approved in many countries for use in food contact applications. For detailed
information refer to our Positive List or contact your local sales office.
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