Recently, Organotin compounds have come under increased scrutiny with regulatory agencies worldwide. Dibutyltin dilaurate and dibutyltin oxide are already classified as CMR-2 compounds in Europe. Tributyltin compounds are on a concept list for priority substances in surface water which affects the emission allowance level for these substances.
Tributyltin(oxide), in particular, is considered a VHC, based on the finding that its decomposition product in water (tributyltin, TBT) is ranked as a supposed endocrine disrupter.  

As TBTs can be classified PBT(persistence/bioaccumulation/toxicity) or vPvB (very persistence, very bio accumulative), a large number of TBT-containing compounds will be banned in the future. 

SACHEM's Metal Acetylacetonates offer a solid alternative to these organotin compounds and have several significant advantages in addition to eliminating HSE issues that organotins create. 

Table of Solubilities of Metal Acetylacetonates at 20°C

• Very effective Organotin catalyst alternative
• Reduced HSE issues
• No induction time
• Higher through-put in existing reactor systems
• Acetylacetonates are solids but can be supplied as solutions

Which SACHEM Metal Acetylacetonates are the best candidates?

• Zirconium (iv) Acetylacetonate
• Zinc (ii) Acetylacetonate
• Iron (iii) Acetylacetonate

Standard packaging is in 25 kg fiber drums.   


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Additional Resources and Links:

Commission of the European Communities: Proposal on Enviromental Quality Standards and Water Policy