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Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
2017
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a (Q)SAR model, with limited documentation / justification, but validity of model and reliability of prediction considered adequate based on a generally acknowledged source
Justification for type of information:
Estimated data are obtained from a reliable (Q)SAR program developed and validated by the United States Environmental Protection Agency (U.S. EPA). This program is included in the OECD (Q)SAR Toolbox for use in filling REACH data gaps.
Qualifier:
no guideline available
Principles of method if other than guideline:
Estimated data are obtained from a reliable (Q)SAR program developed and validated by the United States Environmental Protection Agency (U.S. EPA). This program is included in the OECD (Q)SAR Toolbox for use in filling REACH data gaps.
GLP compliance:
not specified
Type of method:
other: not specified
Specific details on test material used for the study:
CAS Number: 24817-92-3
SMILES : O=C(C(CC(=O)OCCCCCC)(CC(=O)OCCCCCC)OC(=O)C)OCCCCCC
Key result
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
0 Pa

MPBPVP (v1.43) Program Results:

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

Experimental Database Structure Match:  no data

SMILES : O=C(C(CC(=O)OCCCCCC)(CC(=O)OCCCCCC)OC(=O)C)OCCCCCC

CHEM   : 1,2,3-Propanetricarboxylic acid, 2-(acetyloxy)-, trihexyl ester

MOL FOR: C26 H46 O8

MOL WT : 486.65

------------------------ SUMMARY MPBVP v1.43 --------------------

Boiling Point:  480.37 deg C (Adapted Stein and Brown Method)

Melting Point:  151.36 deg C (Adapted Joback Method)

Melting Point:  166.83 deg C (Gold and Ogle Method)

Mean Melt Pt :  159.09 deg C (Joback; Gold,Ogle Methods)

 Selected MP:  159.09 deg C (Mean Value)

Vapor Pressure Estimations (25 deg C):

 (Using BP: 480.37 deg C (estimated))

 (Using MP: 159.09 deg C (estimated))

   VP:  1.04E-010 mm Hg (Antoine Method)

     :  1.39E-008 Pa  (Antoine Method)

   VP:  3.62E-009 mm Hg (Modified Grain Method)

     :  4.83E-007 Pa  (Modified Grain Method)

   VP:  8.57E-009 mm Hg (Mackay Method)

     :  1.14E-006 Pa  (Mackay Method)

 Selected VP:  3.62E-009 mm Hg (Modified Grain Method)

            :  4.83E-007 Pa (Modified Grain Method)

Conclusions:
The vapour pressure of the substance was estimated to be 4.83E-7 Pa using MPBPVP (v1.43) of EPI-Suite (v4.11).

Description of key information

4.83E-7 Pa (est.).

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information

The volatility of the substance is very low.