Reaction products of Resin acids and Rosin acids, sodium salts and barium chloride

Vapour pressure

Administrative data

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

01 March 2017 - 04 May 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Version / remarks:

2009

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Version / remarks:

2006

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7950 (Vapor Pressure)

Version / remarks:

1996

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

effusion method: isothermal thermogravimetry

Test material

Test material information

1

Reference substance name:

Reaction products of Resin acids and Rosin acids, sodium salts and barium chloride

Molecular formula:

not applicable

IUPAC Name:

Reaction products of Resin acids and Rosin acids, sodium salts and barium chloride

Test material form:

solid: particulate/powder

Details on test material:

- Appearance: Light tan powder
- Storage conditions: At room temperature

Specific details on test material used for the study:

Decomposition temp.: 125°C

Results and discussion

Vapour pressure

Vapour pressure 1

Key result

Temp.:

20 °C

Vapour pressure:

< 0.036 Pa

Vapour pressure 2

Key result

Temp.:

25 °C

Vapour pressure:

< 0.049 Pa

Any other information on results incl. tables

Table: Results of the isothermal TGA analysis (test item)

Temperature [°C]	Weight loss [µg/min]	νT [g/cm^2/h]	logνT	logPT	PT [Pa]
100	2.39004	2.85x10^-4	-3.54	0.20	1.6
	2.64743	3.16x10^-4	-3.50	0.26	1.8
110	2.45779	2.93x10^-4	-3.53	0.22(^1)	1.7
	3.19746	3.82x10^-4	-3.42	0.37	2.4
120	3.94025	4.70x10^-4	-3.33	0.49	3.1
	4.39376	5.24x10^-4	-3.28	0.56	3.6
130	5.37886	6.42x10^-4	-3.19	0.67	4.7
	5.60103	6.69x10^-4	-3.17	0.70	5.0

(1) Not used for calculation (outlier).

Applicant's summary and conclusion

Conclusions:

The vapour pressure of the substance at 20°C was determined to be <3.6E-2 Pa.
The vapour pressure of the substance at 25°C was determined to be <4.9E-2 Pa.

Executive summary:

The vapour pressure of the substance was determined using the isothermal thermogravimetric effusion method in a GLP study according to EC A.4, OECD 104 and OPPTS 830.7950.

The constants specific for the experimental arrangement were determined using a set of 5 reference compounds. A vapour pressure curve for the test item was constructed from duplicate measurements at 100°C, 11 0°C, 120°C and 130°C. The vapour pressure of the substance at 20°C and 25°C was determined by extrapolation to be <3.6E-2 Pa and <4.9E-2 Pa, resp.