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U.S. Department of Health and Human Services

Inventory of Effective Food Contact Substance (FCS) Notifications

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FCN No. 458

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Food Contact Substance:  Tetracarbonyl di-µ-chlorodirhodium (I) (CAS Reg. No. 14523-22-9) Trade name: Rhodium carbonyl chloride dimer Formula: (Rh(CO)2Cl)2
Notifier:  Wacker Chemical Corporation
Manufacturer:  Wacker Chemical Corporation
Intended Use:  As a catalyst to accelerate the cross-linking reaction of vinyl-functionalized polydimethylsiloxanes with hydrogen-functionalized polydimethylsiloxanes in forming a silicone elastomer that will be used in repeat use articles such as baking molds and milk
Effective Date:  11/30/2004
Limitations/Specifications:  The FCS will be used at levels not to exceed 30 ppm in the finished elastormer.
Environmental Impact Decisions:  Environmental Decisions Site