Benzenesulfonic acid, 4-C20-24 (even numbered) sec-alkyl derivs., sodium salts

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:

07 August 2018 – 08 August 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

other: ASTM D 3828 (Flash Point by Small Scale Closed Cup Tester)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

closed cup

Flash point apparatus:

Setaflash apparatus

Specific details on test material used for the study:

- Batch n°: 2712-106
- Analytical purity: 100%
- Expiration date: not indicated
- Storage condition: at room temperature

Key result

Flash point:

215 °C

Atm. press.:

>= 100.1 - <= 100.5 kPa

Remarks on result:

other: no correction required for barometric pressure

Detailed Flash Point Test Results

Temperature (°C)	Barometric Pressure (kPa)	Ignition? Yes (y) / No (n)	Halo/ Enlarged test flame? Yes (y) / No (n)	Flashpoint Temperature (Corrected) °C
Screening Run
80 - 226	100.1	n	n	N/A
227	100.1	y	n	227
Finite Test
217	100.5	y	n	217
212	100.5	n	n	N/A
213	100.5	n	n	N/A
214	100.5	n	n	N/A
215	100.5	n	n	N/A
216	100.5	y	n	216
215	100.5	y	n	215
214	100.5	n	n	N/A

Interpretation of Results

This test method measures the response of a sample to heat and flame under controlled laboratory conditions. It is only one of a number of properties that must be considered when assessing the overall flammability hazard of a sample. An abnormally low flash point in a relatively non-volatile or non-flammable material is a good indication of contamination of the sample by highly volatile and flammable materials.

The test standard used states that temperature corrections need to be made to the result if the ambient barometric pressure differs from a standardised (sea level) reading of 101.3 kPa. As barometric pressure has an effect on a liquid’s vapour pressure this means more or less volatiles could be present at the same test temperature under examination (depending on the local barometric pressure of any given test laboratory) and to remove this variable all results are harmonised to the same barometric pressure.

Interpretation of results:

GHS criteria not met

Conclusions:

The flash point temperature of the test item has been determined to be 215°C.

Description of key information

The flash point of the substance was determined in a GLP study according to test method ASTM D 3828 (K1, Dekra, 2018). The flash point of the test item was determined to be 215 °C.

Key value for chemical safety assessment

Flash point at 101 325 Pa:

215 °C