Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From August to September 2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study (OECD, EPA, etc)
Cross-reference
Reason / purpose:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report Date:
2011

Materials and methods

Test guideline
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
- The vapour pressure was determined using a vapour pressure balance
GLP compliance:
yes (incl. certificate)
Type of method:
effusion method: vapour pressure balance

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): XP-7866
- Physical state: white powder
- Purity test date: 99.5%
- Lot/batch No.: 10188-1 JM
- Expiration date of the lot/batch: 28 February 2015
- Storage condition of test material: room temperature, in the dark

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
5.4 Pa

Any other information on results incl. tables

A total of 10 runs were completed for the main sequence. Equilibrium with regard to vapour pressure was assessed to have been reached over the final 7 runs. Thus the final seven runs have been used to calculate the definitive vapour pressure value for the

test item.

Summary of results:

 Run

Log10 (Vp (25°C))

 4 -12.152 
 5 -11.714 
 6 -12.040 
 7 -12497 
 8 -12.604 
 9 -12.428 
 10 -12.436 
 Mean -12.267 

--> Vapour pressure: 5.4 10-13 Pa

No apparent change in the appearance of the test item was noted over the duration of the test.

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the test item has been determined to be 5.4 x 10-13 Pa at 25°C.
Executive summary:

The Vapour Pressure of 6H-Dibenz [c,e] [1,2] oxaphosphorin, 6,6'( 1 ,2-ethanediyl) bis-6,6'-dioxide has been assessed to be 5.4 x 10-13 Pa at 25°C, using the vapour pressure balance method, using the isoteniscope method, designed to be compatible with Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.