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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
distribution modelling
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Accepted calculation method.

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2015

Materials and methods

Model:
calculation according to Mackay, Level III

Test material

Constituent 1
Chemical structure
Reference substance name:
Icosyl methacrylate
EC Number:
256-220-4
EC Name:
Icosyl methacrylate
Cas Number:
45294-18-6
Molecular formula:
C24H46O2
IUPAC Name:
icosyl 2-methylprop-2-enoate
Test material form:
other: liquid

Study design

Test substance input data:
CAS Number: 32360-05-7
SMILES : O=C(OCCCCCCCCCCCCCCCCCC)C(=C)C
CHEM : 2-Propenoic acid, 2-methyl-, octadecyl ester
MOL FOR: C22 H42 O2
MOL WT : 338.58

EPI SUMMARY (v4.10)
Physical Property Inputs:
Log Kow (octanol-water): ------
Boiling Point (deg C) : 380.00
Melting Point (deg C) : 28.7
Vapor Pressure (mm Hg) : -----
Water Solubility (mg/L): ------
Henry LC (atm-m3/mole) : ------

Results and discussion

Percent distribution in media

Other distribution results:
Using a valid modeling approach, if octadecyl methacrylate is released mainly into air, it remains in the air. And if it is released into water, it also mainly remains in the water.

Any other information on results incl. tables

Distribution modelling

Level III Fugacity Model (Full-Output):

=======================================

CAS Number: 45294-18-6

SMILES : O=C(OCCCCCCCCCCCCCCCCCCCC)C(=C)C

CHEM : 2-Propenoic acid, 2-methyl-, eicosyl ester

MOL FOR: C24 H46 O2

MOL WT : 366.63

------------------------------ EPI SUMMARY (v4.10) --------------------------

Physical Property Inputs:

Log Kow (octanol-water): ------

Boiling Point (deg C) : ------

Melting Point (deg C) : 36.60

Vapor Pressure (mm Hg) : 0.00045

Water Solubility (mg/L): ------

Henry LC (atm-m3/mole) : ------

Henry's LC : 0.199 atm-m3/mole (Henrywin program)

Vapor Press : 0.00045 mm Hg (user-entered)

Liquid VP : 0.000586 mm Hg (super-cooled)

Melting Pt : 36.6 deg C (user-entered)

Log Kow : 10.61 (Kowwin program)

Soil Koc : 8.19e+005 L/kg (KOCWIN MCI method)

Release to air:

 

Mass Amount

Half-Life

Emissions

 

(percent)

(hr)

(kg/hr)

Air

94.3

6.29

1000

Water

0.168

360

0

Soil

5.57

720

0

Sediment

0.00199

3.24e+003

0

Persistence Time: 8.82 hr 

Relaese to water:

 

Mass Amount

Half-Life

Emissions

 

(percent)

(hr)

(kg/hr)

Air

0.00101

6.29

0

Water

98.8

360

1000

Soil

5.95e-005

720

0

Sediment

1.17

3.24e+003

0

Persistence Time: 345 hr

Applicant's summary and conclusion

Conclusions:
Using a valid modeling approach, if Eicosyl methacrylate is released mainly into air, it mainly remains in the air. And if it is released into water, it also mainly remains in the water.
Executive summary:

Using a valid modeling approach, if Eicosyl methacrylate is released mainly into air, it remains in the air. And if it is released into water, it also mainly remains in the water.

NOTE: Any of data in this dataset are disseminated by the European Union on a right-to-know basis and this is not a publication in the same sense as a book or an article in a journal. The right of ownership in any part of this information is reserved by the data owner(s). The use of this information for any other, e.g. commercial purpose is strictly reserved to the data owners and those persons or legal entities having paid the respective access fee for the intended purpose.