Reaction mass of benzoyl chloride, toluoyl chloride and 2-methyl resorcinol

Vapour pressure

Administrative data

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

28-June-2021 to 30-June-2021 (Experimental dates)

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

other: study report draft 1

Title:

Unnamed

Year:

2021

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7950 (Vapor Pressure)

Version / remarks:

Series 830: Product Properties Test Guidelines

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Version / remarks:

23 March 2006

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Version / remarks:

30 May 2008

Deviations:

no

GLP compliance:

yes

Type of method:

effusion method: vapour pressure balance

Test material

Test material information

Constituent 1

Reference substance name:

Reaction mass of benzoyl chloride, toluoyl chloride and 2-methyl resorcinol

Molecular formula:

not applicable

IUPAC Name:

Reaction mass of benzoyl chloride, toluoyl chloride and 2-methyl resorcinol

Test material form:

solid: particulate/powder

Details on test material:

Appearance: beige powder

Specific details on test material used for the study:

Test item: BTMR
Other names: Benzoyl-m-toluoylmethylresorcinol
CAS No.: 2378040-58-3
Appearance: Beige powder

Results and discussion

Vapour pressure

Key result

Temp.:

25 °C

Vapour pressure:

0.001 Pa

Any other information on results incl. tables

The test item appearance was recorded before and after testing as a beige powder, thus no change in appearance of the test item occurred under the conditions used during the study.
To show the behaviour of the test item during testing the recorded temperatures, mass differences and the resulting calculated values of vapor pressure are shown in the following tables:

Run 1
Table 1 – Vapor Pressure Data

Temperature (ºC)	Temperature (K)	Reciprocal Temperature (K-1)	Mass Difference (μg)	Mass Difference (kg)	Vapor Pressure (Pa)	Log10 Vp
78	351.15	0.002848	0.48	4.8e-10	0.00067	-3.17393
79	352.15	0.002840	0.27	2.7e-10	0.00037	-3.43180
83	356.15	0.002808	1.10	1.10e-09	0.00153	-2.81531
84	357.15	0.002800	1.72	1.72e-09	0.00239	-2.62160
85	358.15	0.002792	1.79	1.79e-09	0.00248	-2.60555
86	359.15	0.002784	1.24	1.24e-09	0.00172	-2.76447
87	360.15	0.002777	1.86	1.86e-09	0.00258	-2.58838

The points for 77, 80, 81 and 82 °C were of zero mass difference (μg); these have not been included in the reported table as the processing software cannot interpret a zero value.
No statistical analysis is given due to the nature of the plot.

Run 2
Table 2 – Vapor Pressure Data

Temperature (ºC)	Temperature (K)	Reciprocal Temperature (K-1)	Mass Difference (μg)	Mass Difference (kg)	Vapor Pressure (Pa)	Log10 Vp
77	350.15	0.002856	1.59	1.59e-09	0.00221	-2.65561
79	352.15	0.002840	0.87	8.7e-10	0.00121	-2.91721
80	353.15	0.002832	4.55	4.55e-09	0.00632	-2.19928
81	354.15	0.002824	1.59	1.59e-09	0.00221	-2.65561
82	355.15	0.002816	0.20	2.0e-10	0.00028	-3.55284
83	356.15	0.002808	2.62	2.62e-09	0.00364	-2.43890
84	357.15	0.002800	0.16	1.6e-10	0.00022	-3.65758
85	358.15	0.002792	1.18	1.18e-09	0.00164	-2.78516
86	359.15	0.002784	1.65	1.65e-09	0.00229	-2.64016
87	360.15	0.002777	1.09	1.09e-09	0.00151	-2.82102

The point for 78 °C was of zero mass difference (μg); this has not been included in the reported table as the processing software cannot interpret a zero value.
No statistical analysis is given due to the nature of the plot.

Run 3
Table 3 – Vapor Pressure Data

Temperature (ºC)	Temperature (K)	Reciprocal Temperature (K-1)	Mass Difference (μg)	Mass Difference (kg)	Vapor Pressure (Pa)	Log10 Vp
77	350.15	0.002856	2.68	2.68e-09	0.00372	-2.42946
78	351.15	0.002848	0.86	8.6e-10	0.00119	-2.92445
79	352.15	0.002840	1.89	1.89e-09	0.00262	-2.58170
80	353.15	0.002832	3.56	3.56e-09	0.00494	-2.30627
81	354.15	0.002824	2.31	2.31e-09	0.00321	-2.49349
82	355.15	0.002816	0.88	8.8e-10	0.00122	-2.91364
83	356.15	0.002808	6.25	6.25e-09	0.00868	-2.06148
84	357.15	0.002800	1.03	1.03e-09	0.00143	-2.84466
85	358.15	0.002792	6.37	6.37e-09	0.00884	-2.05355
86	359.15	0.002784	1.18	1.18e-09	0.00164	-2.78516

The point for 87 °C was of zero mass difference (μg); this has not been included in the reported table as the processing software cannot interpret a zero value.
No statistical analysis is given due to the nature of the plot.

Run 4
Table 4 – Vapor Pressure Data

Temperature (ºC)	Temperature (K)	Reciprocal Temperature (K-1)	Mass Difference (μg)	Mass Difference (kg)	Vapor Pressure (Pa)	Log10 Vp
77	350.15	0.002856	3.08	3.08e-09	0.00428	-2.36856
78	351.15	0.002848	0.81	8.1e-10	0.00112	-2.95078
80	353.15	0.002832	1.76	1.76e-09	0.00244	-2.61261
81	354.15	0.002824	0.95	9.5e-10	0.00132	-2.87943
82	355.15	0.002816	0.33	3.3e-10	0.00046	-3.33724
83	356.15	0.002808	1.61	1.61e-09	0.00224	-2.64975
84	357.15	0.002800	1.34	1.34e-09	0.00186	-2.73049
86	359.15	0.002784	1.25	1.25e-09	0.00174	-2.75945
87	360.15	0.002777	0.52	5.2e-10	0.00072	-3.14267

The points for 79 and 85 °C were of zero mass difference (μg); these have not been included in the reported table as the processing software cannot interpret a zero value.
No statistical analysis is given due to the nature of the plot.

 

Applicant's summary and conclusion

Conclusions:

The vapor pressure of the test item has been determined to be less than 1.4 x 10^-3 Pa
at 25 ºC.