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Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Study period:
19 Oct 2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well-documented study report which meets basic scientific principles.
Principles of method if other than guideline:
Calculated limit value according to column 2 in Annex VII of Regulation (EC) No 1907/2006 (melting point - here: decomposition temperature -between 200°C and 300°C, see section 4.2).
Type of method:
other: estimate
Temp.:
25 °C
Vapour pressure:
< 0 Pa

Software output:

Experimental Database Structure Match: no data

SMILES : O=C(Nc(c(OC)ccc1CL)c1)c(c(O)c(N=Nc(c(OC)ccc2C(=O)Nc(cccc3)c3)c2)c(c4ccc5)c5)c4

CHEM  : 2-Naphthalenecarboxamide, N-(5-chloro-2-methoxyphenyl)-3-hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]-

MOL FOR: C32 H25 CL1 N4 O5

MOL WT : 581.03

------------------------ SUMMARY MPBPWIN v1.43 --------------------

Boiling Point: 856.37 deg C (Adapted Stein and Brown Method)

Melting Point: 349.84 deg C (Adapted Joback Method)

Melting Point: 349.84 deg C (Gold and Ogle Method)

Mean Melt Pt : 349.84 deg C (Joback; Gold,Ogle Methods)

Selected MP: 349.84 deg C (Weighted Value)

Vapor Pressure Estimations (25 deg C):

(Using BP: 856.37 deg C (estimated))

(Using MP: 349.84 deg C (estimated))

VP: 2.32E-041 mm Hg (Antoine Method)

     : 3.09E-039 Pa (Antoine Method)

VP: 3.65E-023 mm Hg (Modified Grain Method)

     : 4.86E-021 Pa (Modified Grain Method)

VP: 1.04E-020 mm Hg (Mackay Method)

     : 1.39E-018 Pa (Mackay Method)

Selected VP: 3.65E-023 mm Hg (Modified Grain Method)

            : 4.86E-021 Pa (Modified Grain Method)

Subcooled liquid VP: 1.87E-019 mm Hg (25 deg C, Mod-Grain method)

                    : 2.49E-017 Pa (25 deg C, Mod-Grain method)

 

Interpretation:

On the basis of the vapour pressure of 4.86 x 10-21Pa selected in the software output, a limit value of <0.000001 Pa is chosen.

Description of key information

The vapour pressure of the submission substance was estimated by calculation in accordance withcolumn 2 in Annex VII of Regulation (EC) No 1907/2006 by a calculation methodrecommended by the Guidance on Information Requirements and Chemical Safety Assessment (chapter R.7.1.5.3), MPBPVP of the EPISuite (TM) software by the US Environmental Protection Agency(EPA, 2011).

 

The calculated vapour pressure value at 25°C is far below the chosen limit value of 0.000001 Pa.

Key value for chemical safety assessment

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

Additional information