Diphenyl sulphide

Flash point

Link to relevant study record(s)

Reference

Endpoint:

flash point, other

Type of information:

experimental study

Adequacy of study:

key study

Study period:

17/3/2016 - 18/3/2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

comparable to guideline study

Justification for type of information:

Experimental test result performed using standard method.

Qualifier:

according to guideline

Guideline:

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

Principles of method if other than guideline:

The flash point of a flammable liquid is the lowest temperature at which there will be enough flammable vapor to ignite when an ignition source is applied.

GLP compliance:

no

Type of method:

closed cup

Flash point apparatus:

Pensky-Martens apparatus

Specific details on test material used for the study:

Name of test material (as cited in study report): Diphenyl sulphide
Molecular formula:C12H10S
Molecular weight:186.277 g/mol
Smiles : c1(Sc2ccccc2)ccccc1
InChI : 1S/C12H10S/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12/h1-10H
Substance Type: Organic
Physical State: Liquid

Key result

Flash point:

121.6 °C

Atm. press.:

976.6 hPa

Remarks on result:

other: No other detail available

Method Details		Observations	Remarks if, any
Method	Closed cup method using Pensky-Martens Flash Point Apparatus
Principle of Flash point test	The flash point of a flammable substance is the lowest temperature at which there will be enough flammable vapor to ignite when an ignition source is applied.
Type of method	·    Closed cup
Flash point apparatus	·    Abel’s flash pt apparatus ·    Pensky-Martens flash point apparatus	Pensky-Martens flash point apparatus
Quantity of chemical used	g	5 ml
Ignition source	Gas lighter/flame	Gas lighter
Atmospheric pressure	hPa	976 .6 hPa
Mean Flash point (RESULT)	°C	121.6

Interpretation of results:

other: Not classified

Conclusions:

The flash point determination of Diphenyl sulphide (CAS No. 139-66-2) was done following closed cup method using Pensky-Martens flash point apparatus. The test was conducted in replicates and mean flash point was determine to be 121.6 °C at 976.6hPa.

Executive summary:

The flash point determination of Diphenyl sulphide(CAS No. 139-66-2) was done following closed cup method using Pensky-Martens flash point apparatus. The test was conducted in replicates and mean flash point was determine to be121.6 °C at 976.6hPa.

Therefore, according to CLP regulation the chemical Diphenyl sulphide (CAS No. 139-66-2) was considered to be non-flammable as the flash point value is > 60 degree C.

Description of key information

The flash point determination of Diphenyl sulphide (CAS No. 139-66-2) was done following closed cup method using Pensky-Martens flash point apparatus. The test was conducted in replicates and mean flash point was determine to be 121.6 °C at 976.6hPa.

Key value for chemical safety assessment

Flash point at 101 325 Pa:

121.6 °C

Additional information

The flash point determination of Diphenyl sulphide (CAS No. 139-66-2) was done following closed cup method using Pensky-Martens flash point apparatus. The test was conducted in replicates and mean flash point was determine to be 121.6°C at 976.6hPa.

Other supporting study from an authoritative database suh as IFA GESTIS (2017) also suggests, the flash point of Diphenyl sulphide to be >110 degree C.

As the data from experimental study has K1 reliability and the test was performed using standard method which has the value of flash point as 121.6 degree C at 976.6hPa, thus considered as key study for the chemical safety assessment. Therefore, based on the flash point value and according to CLP regulation the chemical Diphenyl sulphide (CAS No. 139-66-2) was considered to be non-flammable as the flash point value is > 60 degree C.