Carbon black

Nanomaterial surface chemistry

Administrative data

Endpoint:

nanomaterial surface chemistry

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Data source

Reference

Reference Type:

publication

Title:

Consequences of European Directive 2005/69/EC for Tire Industry

Author:

Bergmann C, Trimbach J, Haase-Held M, Seidel A

Year:

2011

Bibliographic source:

Kautschuk Gummi Kunststoffe, October 2011, 24-35

Materials and methods

Test material

Test material information

Constituent 1

Reference substance name:

Carbon black

EC Number:

215-609-9

EC Name:

Carbon black

Cas Number:

1333-86-4

Molecular formula:

C

IUPAC Name:

carbon

Test material form:

solid

Results and discussion

Any other information on results incl. tables

The low PAH amounts that were extractable with toluene from cured rubber compounds (containing 30% carbon black) suggest that the PAHs become part of the network formed during the vulcanizat ion process.

The sum of 8 EU priority PAHs that migrated into toluene from uncured and cured rubbe r compounds was low (total immersion, 168h at 30°C). For uncured compounds the total 8 EU PAH were less than 2 mg/L (ppm); from cured compounds it was less than 0.05 mg/L (ppm); migration of PAHs from uncured and cured rubber samples into artificial sweat, saliva and water was below the limit of quantification.

Applicant's summary and conclusion

Conclusions:

Migration of PAHs from uncured and cured rubber samples into artificial sweat, saliva and water was below the limit of quantification.

Executive summary:

The low PAH amounts that were extractable with toluene from cured rubber compounds (containing 30% carbon black) suggest that the PAHs become part of the network formed during the vulcanizat ion process.

The sum of 8 EU priority PAHs that migrated into toluene from uncured and cured rubbe r compounds was low (total immersion, 168h at 30°C). For uncured compounds the total 8 EU PAH were less than 2 mg/L (ppm); from cured compounds it was less than 0.05 mg/L (ppm); migration of PAHs from uncured and cured rubber samples into artificial sweat, saliva and water was below the limit of quantification.