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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
supporting study
Study period:
1996
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: All information on this study, including the reliability grade, is derived from OECD SIDS 3-hydroxy-2-naphthoic acid CAS: 92-70-6 dated 2004-11-23, as the complete study report is not at hand.

Data source

Reference
Reference Type:
secondary source
Title:
OECD SIDS 3-Hydroxy-2-naphthoic acid CAS: 92-70-6
Author:
OECD
Year:
2004
Bibliographic source:
OECD SIDS 3-Hydroxy-2-naphthoic acid CAS: 92-70-6, UNEP Publications 2004: 1-72, Ref. 12
Report date:
2004

Materials and methods

Principles of method if other than guideline:
Computer programme: Epiwin Version 2.0, Syracuse Research Corporation, Environmental Science Center Merill Lane, Syracuse, NY 13210, 1996
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
3-hydroxy-2-naphthoic acid
EC Number:
202-180-8
EC Name:
3-hydroxy-2-naphthoic acid
Cas Number:
92-70-6
Molecular formula:
C11H8O3
IUPAC Name:
3-hydroxynaphthalene-2-carboxylic acid

Study design

Estimation method (if used):
- Concentration of OH radicals: 500000 molecules/cm³"
- Degradation rate constant: 2.42091 x 10E-11 cm³/(molecule*sec)"
- Temperature for which rate constant was calculated: not indicated
- Computer programme: Epiwin Version 2.0, Syracuse Research Corporation, Environmental Science Center Merill Lane, Syracuse, NY 13210, 1996

Results and discussion

Dissipation half-life of parent compound
DT50:
15.9 h

Any other information on results incl. tables

Rate constant: = .0000000000242091 cm³/(molecule * sec)

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Remarks:
parameter was calculated
Conclusions:
Indirect photolysis in air: DT50 = 15.9 h (calculated: Epiwin Version 2.0, Syracuse Research Corporation, Environmental Science Center Merill Lane,
Syracuse, NY 13210, 1996)
Executive summary:

Indirect photolysis in air: DT50 = 15.9 h (calculated: Epiwin Version 2.0, Syracuse Research Corporation, Environmental Science Center Merill Lane, Syracuse, NY 13210, 1996)