Linseed oil, ester with pentaerythritol

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:

From June 28, 2017 to June 28, 2917

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:

EPA OPPTS 830.6315 (Flammability)

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: UN Handbook “Recommendations on the Transport of Dangerous Goods - Manual of Tests and Criteria” Rev. 5, 2015, Method 32.4 “Test methods used for determining flash point and viscosity”

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

non-equilibrium method closed cup

Flash point apparatus:

Pensky-Martens apparatus

Specific details on test material used for the study:

Name: linseed oil, ester with pentaerythritol
Batch no: 16.343.096
Appearance: yellow liquid
Composition: 100% UVCB,
Purity: 100% as the substance is an UVCB
Expiry date: 05. October 2017
Storage: At room temperature (20 ± 5°C), after opening keep under inert gas

Key result

Flash point:

ca. 187 °C

Atm. press.:

101.3 kPa

Pre-Test: First, the flash point was determined in approximation, using the Search program of the instrument. In Search program with high heating rate, the range of the flash point was determined.

Observations of the Pre Test:

Observations	Temperatures
A clear yellow liquid was visible	100°C
Individual bubble	Since 130°C
Colourless condensate	Since 150°C
Often bubbles	Since 200°C
More bubbles with vapour	Since 350°C
Bubble chain, burner switched off	380°C
Test item rose to the half-height of reagent glass	350°C
No more bubbles visible	320°C
After cooling down the test item was a clear very viscous dark yellow liquid. This is considered as a sign of decomposition.

Main Test: With the flash point determined in the pre-test, the suitable program of the test system was selected (EN ISO 2719-A). After filling the clean test vessel with test substance, the program was started. After determination of the flash point, the determination was repeated. The determination was performed in triplicate as the difference between first and second determination was > 2 K.

Observations of the main test:

Program	Expected flash point (setting) in °C	Flash point (found) in °C
Search	350	176.2
EN ISO 2719-A	176	187
EN ISO 2719-A	187	202
EN ISO 2719-A	187	192

Interpretation of results:

other: CLP critera not met

Conclusions:

Under the study, the flash point of the substance was determined to be 187°C.

Executive summary:

A study was conducted to determine the flash point of the substance, according to EU method A.9, OPPTS 830.6315 and UN test methods Rev. 5 2015 method 32.4. The determinations in the main test gave three values with a large variation, the difference between the highest and the lowest value was 15°C. This is attributed to the test substance properties test substance consists of a mixture. Possibly, vaporisation of the single components is poorly reproducible, and therefore, different values for the flash point are measured. Also the change in colour is a sign of decomposition, which is also an explanation for the large variation. Under the study, the flash point of the substance was determined to be 187°C (Krebs, 2018).

Description of key information

The flash point of the test substance was determined according to EU Method A.9, OPPTS 830.6315 and UN Rev. 5 2015 Method 32.4 (Krebs, 2018).

Key value for chemical safety assessment

Flash point at 101 325 Pa:

187 °C