Mercaptamine

Vapour pressure

Administrative data

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Test guideline 3

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7950 (Vapor Pressure)

GLP compliance:

yes

Type of method:

effusion method: isothermal thermogravimetry

Test material

Test material information

Constituent 1

Reference substance name:

Mercaptamine

EC Number:

200-463-0

EC Name:

Mercaptamine

Cas Number:

60-23-1

Molecular formula:

C2H7NS

IUPAC Name:

mercaptamine

Test material form:

solid: particulate/powder

Results and discussion

Vapour pressure

Vapour pressure 1

Test no.:

#1

Temp.:

20 °C

Vapour pressure:

12 Pa

Vapour pressure 2

Test no.:

#2

Temp.:

25 °C

Vapour pressure:

26 Pa

Any other information on results incl. tables

Table 1: Results of the Vapour pressure Isothermal TGA Analysis

Temperature [°C]	Weight loss [µg/min]	νT [g/cm^2/h]	logνT	logPT	PT [Pa]
30	20.0912	2.40´10^-3	-2.62	1.78	61
	15.6240	1.86´10^-3	-2.73	1.64	44
40	59.9978	7.16´10^-3	-2.14	2.39	250
	49.8077	5.95´10^-3	-2.23	2.29	190
50	168.329	2.01´10^-2	-1.70	2.96	920
	144.428	1.72´10^-2	-1.76	2.88	760
60	383.315	4.58´10^-2	-1.34	3.42	2600
	355.919	4.25´10^-2	-1.37	3.38	2400

 

Table 2 : Vapour Pressure of the Test Item

Temperature [°C]	logPT	PT [Pa]	PT [mm Hg]
20	1.09	12	9.1´10^-2

Applicant's summary and conclusion

Conclusions:

The vapour pressure of mercaptamine at 20°C (293K) and 25°C (298K) was 12 and 26 Pa, respectively.