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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
phototransformation in air
Type of information:
calculation (if not (Q)SAR)
Remarks:
EPI Suite by US EPA, AOPWIN (v1.92)
Adequacy of study:
supporting study
Study period:
2022
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Remarks:
reliable program used (AOPWIN) from EPI Suite

Data source

Reference
Reference Type:
other: Calculation
Title:
EPI Suite AOPWIN (v1.92): OZONE REACTION (25 deg C)
Author:
N.N.
Year:
2022

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Calculation using EPI Suite AOPWIN program (v1.92)
Deviations:
not applicable
Principles of method if other than guideline:
Calculation
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Bis(2-(2-methoxyethoxy)ethyl) ether
EC Number:
205-594-7
EC Name:
Bis(2-(2-methoxyethoxy)ethyl) ether
Cas Number:
143-24-8
Molecular formula:
C10H22O5
IUPAC Name:
2,5,8,11,14-pentaoxapentadecane
Constituent 2
Reference substance name:
Tetraglyme
IUPAC Name:
Tetraglyme

Results and discussion

Dissipation half-life of parent compound
Key result
DT50:
0.341 d
Test condition:
24-hr day; 1.5E6 OH/cm³
Remarks on result:
other: Calculation with EPI Suite AOPWIN (v.1.92): Hydroxyl radicals (25 deg C)
Transformation products:
not measured

Applicant's summary and conclusion

Conclusions:
DIRECT PHOTOLYSIS in air
Monoglyme does not absorb light >290 nm (ozone band) and therefore a direct photolysis in air will not occur.

INDIRECT PHOTOLYSIS in air
OH radical induced indirect photolysis of Monoglyme can be estimated with US EPA AOPWIN Program estimating low degradation half-life of DT50 = 0.341 days (24-hr day, 1.5E6 OH/cm³).
Executive summary:

DIRECT PHOTOLYSIS in air
Monoglyme does not absorb light >290 nm (ozone band) and therefore a direct photolysis in air will not occur.


INDIRECT PHOTOLYSIS in air
OH radical induced indirect photolysis of Monoglyme can be estimated with US EPA AOPWIN Program estimating low degradation half-life of DT50 = 0.341 days (24-hr day, 1.5E6 OH/cm³).