Application

• TMG 248 is a solid,amorphous catalyst which is used mainly in esterification,transesterification and polycondensation reactions.
• TTMG 248 can be used at temperatures of approx.90-260℃.Low temperature-reactions,as e.g. the convension of acrylates,are catalysed as well as high temperature-reactions,as e.g. polyester of alkyd resin production.
• TFor the application as ingredient of electro-deposition paint,TMG 248 is available in different particle-size distributions.
• TTMG 248 is also well suitable for the transesterification of vinyl acetate or acrylic acid copolymers.
• TFuthermore,the catalyst can be applied in the production of polycarbonates.
• TDepending on the application,TMG 248 is used in concentrations between 0.01-0.5%.

Chemical characteristics

Chemical Name	Dibutyltin oxide
Formula
Molecular weight	248.9
CAS No.	870-08-6
Tin content	≥47%
Chloride content	<0.2%
Volatile	<1.0%

Physical characteristics

State of aggregation	Solid
State of aggregation	White
Decomposition point	>210℃
Density（20℃）
Solubility	Practically insoluble in water and organic solvents

Storage

TMG 248 can be stored for at least one year if kept closed in the original packaging

Packaging

25kg/drum

Special advice for security
Information concerning:
·classification and labelling according to the regulations governing transport and hazardous chemicals
·protective measures for storage and handling
·safety measures in case of accident and fire
·toxicity and ecological effects
are given in our material safety data sheets.