o-chlorobenzenethiol

Flash point

Link to relevant study record(s)

Reference

Endpoint:

flash point of flammable liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

January 29th, 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

Deviations:

no

Qualifier:

according to guideline

Guideline:

ISO 2719 (Determination of flash point - Pensky-Martens closed cup method)

Version / remarks:

2002

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

closed cup

Flash point apparatus:

Pensky-Martens apparatus

Key result

Flash point:

90 °C

Atm. press.:

101.3 kPa

Table 1. Results of the determination of flash point

Preliminary test		Test No 1		Test No 2
Temperature [°C]	Result	Temperature [°C]	Result	Temperature [°C]	Result
20	-	72	-	72	-
23	-	73	-	73	-
26	-	74	-	74	-
29	-	75	-	75	-
32	-	76	-	76	-
35	-	77	-	77	-
38	-	78	-	78	-
41	-	79	-	79	-
44	-	80	-	80	-
47	-	81	-	81	-
50	-	82	-	82	-
53	-	83	-	83	-
56	-	84	-	84	-
59	-	85	-	85	-
62	-	86	-	86	-
65	-	87	-	87	-
68	-	88	-	88	-
71	-	89	-	89	+
74	-	90	+
77	-
80	-
83	-
86	-
89	-
92	+

(+) – yes, (–) – no; (–)

 

Temperature is corrected to standard atmospheric pressure andtemperaturedeviationby special equation:

T = C + 0,25 (101,3 – p),

where:

C - the ignition temperature, taking into account the deviation = 90.1 °C;

p - the ambient barometric pressure = 101.5 kPa

Measurement uncertainty is ∆T = 1.2 °C.

T = 90.1 °C + 0.25 (101.3 kPa – 101.5 kPa) = 90.0 °C

The result is rounded to 0.5 °C.

Interpretation of results:

GHS criteria not met

Remarks:

Not flammable according to CLP regulation (EU criteria).

Conclusions:

The flash point of the test item is 90.0 °C at 101300 Pa.

Executive summary:

The study to determine the flash point of o-chlorobenzenethiol were carried out in accordance with standard PN-EN ISO 2719: 2007, "Determination of flash point – Pensky-Martens closed cup method" / EU method A.9 Flash point (GLP study). The test item was placed in a Pensky-Martens apparatus and heated to give a constant temperature increase with continuous stirring. An ignition source directed through an
opening in the test cup lid at regular temperature intervals with simultaneous interruption of stirring. The lowest temperature at which the application of the ignition source causes the vapour of the test substance to ignite and propagate over the surface of the liquid, is the flash point at ambient barometric pressure. The flash point of the test item was determined to be 90.0ºC at 101.3 kPa.

Description of key information

Key study. Method according to PN-EN ISO 2719 (2007) / EU A.9, GLP study. The flash point of the test item is 90.0ºC at 101.3 kPa.

Key value for chemical safety assessment

Flash point at 101 325 Pa:

90 °C

Additional information

The study to determine the flash point of o-chlorobenzenethiol were carried out in accordance withstandard PN-EN ISO 2719: 2007, "Determination of flash point – Pensky-Martens closed cup method" / EU method A.9 Flash point (GLP study).The test item was placed in a Pensky-Martens apparatus and heated to give a constant temperature increase with continuous stirring. An ignition source directed through an
opening in the test cup lid at regular temperature intervals with simultaneous interruption of stirring. The lowest temperature at which the application of the ignition source causes the vapour of the test substance to ignite and propagate over the surface of the liquid, is the flash point at ambient barometric pressure.The flash point of the test item was determined to be 90.0ºC at 101.3 kPa.