Section 12. Ecological information Product/ingredient name Aquatic half-life Photolysis Biodegradability 4,4'-Methylenediphenyl - - Not readily diisocyanate, oligomeric reaction products with butane- 1,3-diol, 2,4'- diisocyanatodiphenylmethane, 1,1'-methylenebis (4-isocyanatobenzene) homopolymer, [ (methylethylene)bis(oxy)] dipropanol and propane-1, 2-diol Diphenylmethane 4,4'- Fresh water 0.83 days - Not readily diisocyanate Homopolymer of - - Not readily methylenediphenyl diisocyanate 2,6-di-tert-butyl-p-cresol - - Inherent Bioaccumulative potential Potential Product/ingredient name LogPow BCF 4,4'-Methylenediphenyl 200 low 15.98 diisocyanate, oligomeric reaction products with butane- 1,3-diol, 2,4'- diisocyanatodiphenylmethane, 1,1'-methylenebis homopolymer, [ (methylethylene)bis(oxy)] dipropanol and propane-1, Diphenylmethane 4,4'- 4.51 200 low diisocyanate Homopolymer of 8.56 200 low methylenediphenyl diisocyanate high 5.1 330 to 1800 Mobility in soil Mobility : By considering the production and use of the substance, it is unlikely that significant environmental exposure in the air or water will arise. Immiscible with water, but will react with water to produce inert and non-biodegradable solids. Conversion to soluble products, including diamino- diphenylmethane (MDA), is very low under the optimal laboratory conditions of good dispersion and low concentration. In air, the predominant degradation process is predicted to be a relatively rapid OH radical attack, by calculation and by analogy with related diisocyanates. No known significant effects or critical hazards. Other adverse effects : ecological information BOD5 : Not determined. COD : Not determined. 8/5/2014. Not available. 16/20
Section 12. Ecological information Product/ingredient name Aquatic half-life Photolysis Biodegradability 4,4'-Methylenediphenyl diisocyanate, oligomeric reaction products with butane- - - Not readily 1,3-diol, 2,4'- diisocyanatodiphenylmethane, 1,1'-methylenebis (4-isocyanatobenzene) homopolymer, [ (methylethylene)bis(oxy)] dipropanol and propane-1, 2-diol Diphenylmethane 4,4'- diisocyanate Fresh water 0.83 days - Not readily Homopolymer of methylenediphenyl diisocyanate - - Not readily 2,6-di-tert-butyl-p-cresol - - Inherent Bioaccumulative potential Product/ingredient name LogPow BCF Potential 4,4'-Methylenediphenyl diisocyanate, oligomeric reaction products with butane- 15.98 200 low 1,3-diol, 2,4'- diisocyanatodiphenylmethane, 1,1'-methylenebis homopolymer, [ (methylethylene)bis(oxy)] dipropanol and propane-1, Diphenylmethane 4,4'- diisocyanate 4.51 200 low Homopolymer of methylenediphenyl diisocyanate 8.56 200 low 5.1 330 to 1800 high Mobility in soil Mobility : By considering the production and use of the substance, it is unlikely that significant environmental exposure in the air or water will arise. Immiscible with water, but will react with water to produce inert and non-biodegradable solids. Conversion to soluble products, including diamino- diphenylmethane (MDA), is very low under the optimal laboratory conditions of good dispersion and low concentration. In air, the predominant degradation process is predicted to be a relatively rapid OH radical attack, by calculation and by analogy with related diisocyanates. Other adverse effects : No known significant effects or critical hazards. ecological information BOD5 : Not determined. COD : Not determined. 8/5/2014. Not available. 16/20
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