Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
phototransformation in air
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Accepted calculation method

Data source

Reference
Title:
No information
Author:
Bayer Industry Services (2006). Naphthalene-1.5-disulphonic acid CAS-No.81-04-9.|Calculation of |-Melting Point with MPBPWIN, v.1.41, 2000|-Boiling Point with MPBPWIN, v.1.41, 2000|-Vapour Pressure with MPBPWIN, v.1.41, 2000|-Water Solubility with WSKOWWIN, v.1.41, 2000|-Log Octanol-Water Partition Coefficient with KOWWIN v.1.67, 2000|-Indirect Photodegradation with AOPWIN v.1.91, 2000|-Henry´s Law Constant with HENRYWIN v.3.10, 2000|-Soil Adsorption Coefficient with PCKOCWIN v.1.66, 2000 |-Bioconcentration Factor with BCFWIN v.2.15, 2000.|-Mackay-Distribution Level I according to Mackay, D., 1991

Materials and methods

Principles of method if other than guideline:
Method: other (calculated): with AOPWIN, v.1.91
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Automatically generated during migration to IUCLID 6, no data available
IUPAC Name:
Automatically generated during migration to IUCLID 6, no data available
Details on test material:
IUCLID4 Test substance: other TS: naphthalene-1.5-disulphonic acid

Study design

Details on test conditions:
Sensitiser (for indirect photolysis): OH
Sensitiser concentration: 500000 molecule/cm³

Results and discussion

Dissipation half-life of parent compound
DT50:
12.7 d

Any other information on results incl. tables

Rate constant (for indirect photolysis):  0.00000000000127 cm³/(molecule*sec)
Degradation in % (for indirect photolysis):  50  after 12.7 day(s)

Applicant's summary and conclusion