Hexane, 1,6-diisocyanato-2,2,4(or 2,4,4)-trimethyl-

Biodegradation in soil

Administrative data

Endpoint:

biodegradation in soil: simulation testing

Data waiving:

exposure considerations

Justification for data waiving:

the study does not need to be conducted because direct and indirect exposure of soil is unlikely

Data source

Reference

Reference 1

Reference Type:

publication

Title:

Fate of Methylenediphenyl Diisocyanate and Toluene Diisocyanate in the Aquatic Environment

Author:

Yoshikuni Yakabe, Karen M. Henderson, William C. Thompson, Denis Pemberton, Bernard Tury, and Robert E. Bailey,

Year:

1999

Bibliographic source:

Environmental Science & Technology 1999 33 (15), 2579-2583; DOI: 10.1021/es981350c

Reference 2

Reference Type:

publication

Title:

Isocyanates; Encyclopedia of Toxicology

Author:

R.W. Knapp

Year:

2014

Bibliographic source:

Philip Wexler, Encyclopedia of Toxicology (Third Edition), Academic Press, 2014, Pages 1112-1131, ISBN 9780123864550,

Results and discussion

Transformation products:

not measured

Remarks:

Upon contact with water the diisocyanate groups react by forming amines and CO2. The amines formed react further with unreacted diisocyanate groups of the diisocyanate homopolymer resulting in oligo-and subsequently polyurea components.