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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Phototransformation in water

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
phototransformation in water
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Study period:
no data
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Study type:
not specified
Qualifier:
according to guideline
Guideline:
other: no guideline reported
Principles of method if other than guideline:
No data, secondary literature.
GLP compliance:
not specified
Radiolabelling:
not specified
Analytical method:
not specified
Light source:
sunlight
Key result
DT50:
171 d
Test condition:
sunlit natural water
Transformation products:
not specified
Validity criteria fulfilled:
not specified
Conclusions:
At hydroxyl radical concentrations of 1X10-17 M in sunlit natural water, a half-life of 171 days is calculated.
Executive summary:

In the Hazardous Substances Data Bank (HSDB) results of Mill T et al. (Sci 208: 886 (1980)) are cited:

At hydroxyl radical concentrations of 1X10-17 M in sunlit natural water, a half-life of 171 days for thiourea is calculated.

Description of key information

The calculated half-life of thiourea in sunlit natural water at a hydroxyl radical concentrations of 1.0E-17 M is 171 days.

Key value for chemical safety assessment

Half-life in water:
171 d

Additional information

In the Hazardous Substances Data Bank (HSDB) results of Mill T et al. (Sci 208: 886 (1980)) are cited:

At hydroxyl radical concentrations of 1X10-17 M in sunlit natural water, a half-life of 171 days for thiourea is calculated.