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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Justification for type of information:
Data is from predictive model developed by US EPA.
Qualifier:
no guideline available
Principles of method if other than guideline:
The vapour pressure of 3,4,5,6-tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoic acid (CAS No. 18472-87-2) was estimated from EPI suite MPBPVP (v1.43) Program.
GLP compliance:
no
Type of method:
other: Modified Grain Method
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Test item Name: 3,4,5,6-tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoic acid (CAS Number: 18472-87-2)
- Physical State: Solid
- Form and colour: Red powder
- Molecular formula: C20H4Br4Cl4O5.2Na
- Molecular weight: 829.6388 g/mol
- InChI: 1S/C20H4Br4Cl4O5.2Na/c21-5-1-3-17(9(23)15(5)29)32-18-4(2-6(22)16(30)10(18)24)20(3)8-7(19(31)33-20)11(25)13(27)14(28)12(8)26;; /h1-2,29- 30H;;/q;2*+1/p-2
- Smiles: c1c2c(c(c(c1Br)[O-])Br)Oc3c(cc(c(c3Br)[O-])Br)C24c5c(c(c(c(c5Cl)Cl)Cl)Cl)C(=O)O4.[Na+].[Na+]
- Substance type: Organic
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: Estimated via Modified Grain Method
Conclusions:
The vapor pressure of test substance was estimated to be 3.12E-021 Pa at 25 deg C
Executive summary:

The Modified Grain method was used to estimate the vapour pressure of  test substance  using MPBPVP v1.43 Program of EPI SUITE. The vapor pressure of test substance  was estimated to be 3.12E-021 Pa at 25 deg C.

Description of key information

The vapor pressure of test substance  was estimated to be 3.12E-021 Pa at 25 deg C. However for chemical safety assessment the value considered is 3.12E-5.


Key value for chemical safety assessment

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

Additional information

The Modified Grain method was used to estimate the vapour pressure of test substance  using MPBPVP v1.43 Program of EPI SUITE. The vapor pressure of test substance  was estimated to be 3.12E-021 Pa at 25 deg C