Reaction product of acid red 143 (free acid) or the respective sodium salt (e.g Lansyn red F-5B) (UVCB) with Tetrabutylammonium bromide (CAS nr.: 1643-19-2) resulting in a mixture of AR143-(TBN)2 (Main component), AR143-(TBN), AR143-(TBN)3, AR143-(TBN) without alkyl tail, AR143-(TBN)2 without alkyl tail.Chemical name main component AR143-(TBN)2:di-(tetra-n-butylammonium) salt of 1-benzoyl-4-[4'-(1'',1''-dimethylpropyl)-phenoxy]-6-phenylamino-2,7-dioxo-2,7-dihydro-3H-naphtho(1,2,3-de)quinolin, disulfonic acid

Vapour pressure

Administrative data

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

29/06/2006-23/09/2006

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2007

Report date:

2007

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Version / remarks:

European Econornic Community (EEC), EEC directive 92/69 EEC, Part A, Methods for the Determination of Physico-Chemica1 Properties, A.4 "Vapour Pressure", EEC Publication No L383, December 1992

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Version / remarks:

Organisation for Econornic Co-operation and Development (OECD), OECD guidelines for Testing chemicals, Draft Updated Guideline No.104: "Vapour Pressure Curve", October 2002

GLP compliance:

yes (incl. QA statement)

Type of method:

effusion method: isothermal thermogravimetry

Test material

Test material information

1

Reference substance name:

-

EC Number:

473-100-9

EC Name:

-

Test material form:

solid: particulate/powder

Details on test material:

- Description: dark purple powder
- Solubility in the water: <= 0.412 g/L
- Melting point: > 250 °C
- Boiling point: > 250 °C
- Explosion: not explosion
- Log Pow: >= 3.3
- Test substance storage: at room temperature in the dark, 20°C, dry store
- Stability under storage conditions: stable

Specific details on test material used for the study:

The test substance was applied to the surface of a roughened glass plate as a homogeneous layer. The plate was wetted uniformly by a solution of the substance in chloroform and dried in an inert atmosphere. For the measurement, the coated plate was hung into the thermogravimetric analyzer. The following method was used:

Results and discussion

Vapour pressure

Vapour pressure 1

Key result

Test no.:

#1

Temp.:

20 °C

Vapour pressure:

< 0 Pa

Vapour pressure 2

Key result

Test no.:

#1

Temp.:

20 °C

Vapour pressure:

< 0 mm Hg

Any other information on results incl. tables

The test substance was considered to show ideal behaviour. Therefore the evaporation rate curve at elevated temperatures and the vapour pressure curve were derived by using a least squares method to calculate a straight Iine that best fits the measured data (Clapeyron).

The vTt value, determined by extrapolation from the evaporation rate curve, was fitted in the vapour pressure curve to obtain the PT,20 value.

The test temperatures are expressed in degrees Kelvin (K). Temperature in °C = Temperature in Kelvin -273.15.

Applicant's summary and conclusion

Conclusions:

The vapour pressure of SXju12006 at 20°C by isothermal thermogravimetry was determined to be lower than 1.47E-8 Pa or 1.10E-10 mm Hg.