N-(1,3-Dimethylbutyl)-N

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OECD SIDS N-(1,3-DIMETHYLBUTYL)-N´-PHENYL-1,4-PHENYLENEDIAMINE 1. GENERAL INFORMATION ID: 793-24-8 DATE: 11.05.2005 6PPD were released in Germany in the year 2000. With the age of the tyres the PPD content decreases sharply (John et al. 1984) to about 0.1 % (Baumann and Ismeier 1998). Thus, it is more likely that the amount of 6PPD in tyre abrasion particles is less than 100 t/a. Flag : Critical study for SIDS endpoint 08.08.2003 (16) (5) (17) (3) (18) (14) (19) (20) (21) Source of exposure : Environment: exposure through recovery / waste disposal Exposure to the : Substance Result : After their use rubber articles might be a source of environmental 6PPD. The amount of rubber wastes in Germany is estimated to be 1 Mio. t, of which 55 % are used tyres. For 1993, the fate of 91 % of the used tyres was traced. Only 2 % of tyres were landfilled in 1993. On the other hand, most other used rubber products were deposited after use, in 1990 about 370,000 t/a (Löffler 1998). Assuming the 6PPD content to be 0.8 %, about 3000 t 6PPD were transfered to dumps in 1990 in Germany. Since 1993, the landfilling of wastes containing more than a limited amount of organics is prohibited (e.g. 3 % TOC in household wastes, TA Siedlungsabfall 1993) in Germany. The amount of rubber products deposited was decreased considerably due to increased · recycling of used rubber e.g. in road or sports ground covers, as insulation material, by pyrolysis · thermic recycling e.g. as a fuel in cement production · waste incineration. 08.08.2003 (9) (22) 1.11 ADDITIONAL REMARKS 1.12 LAST LITERATURE SEARCH Type of search : Internal and External Chapters covered : 1 Date of search : 02.07.2003 03.08.2003 Type of search : Internal and External Chapters covered : 2 Date of search : 02.07.2003 03.08.2003 Type of search : Internal and External Chapters covered : 3, 4 Date of search : 02.07.2003 03.08.2003 Type of search : Internal and External Chapters covered : 5 Date of search : 01.06.2003 03.08.2003 48 UNEP PUBLICATIONS
OECD SIDS N-(1,3-DIMETHYLBUTYL)-N´-PHENYL-1,4-PHENYLENEDIAMINE 1. GENERAL INFORMATION ID: 793-24-8 DATE: 11.05.2005 1.13 REVIEWS Memo : BUA-Report 05.05.2003 (5) Memo : Report of the Rubber and Plastic Additives Panel of the American Chemistry Council 06.05.2003 (23) UNEP PUBLICATIONS 49
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N-(1,3-Dimethylbutyl)-N

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