Hexamethylene diisocyanate, trimers, reaction products with 2-hydroxyethyl acrylate

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:

22 Sep - 23 Sep 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

GLP guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

Version / remarks:

adopted in 2008

Qualifier:

according to guideline

Guideline:

ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)

Version / remarks:

adopted in 2004

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.6315 (Flammability)

Version / remarks:

adopted in 1996

Qualifier:

according to guideline

Guideline:

other: Recommendations on the Transport of Dangerous Goods: Manual of Test and Criteria, 5th edition, New York and Geneva, 2009: Class 3, Flammable Liquids

GLP compliance:

yes (incl. QA statement)

Remarks:

Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany

Type of method:

equilibrium method closed cup

Flash point apparatus:

other: Rapid tester NPV 310 Normalab

Specific details on test material used for the study:

Storage conditions: Ambient temperature, keep container tightly closed, protected from sunlight

Flash point:

200.5 °C

Atm. press.:

995 hPa

Results
Preliminary test results
Results from the preliminary test with the search program are shown in Table 1. An ignition is indicated by ‘+’ and no ignition by ‘-‘.

Table 1 – Preliminary test

Amount of test item [g]	Temperature [°C]	Ignition [+/-]	Air pressure [hPa]	Remark
2	100.1	-	993.3	No ignition up to 100 °C
4*	226.2	+		--

*prior to measurement a test item sample was heated up to ca. 50 °C due to the high viscosity of the test item

In the preliminary test, the lowest temperature at which an ignition was seen was 226.2 °C.

Main test results
Main test results are shown in Table 2. An ignition is indicated by ‘+’ and no ignition by ‘-‘.

Table 2 – Main test

Amount of test item [g]	Temperature [°C]	Ignition [+/-]	Air pressure [hPa]	Remark
4	200.0	-	993.3	Prior to the measurement a test item sample was heated up to ca. 50 °C due to the high viscosity of the test item
4	210.0	+
4	205.0	+
4	201.0	-
4	202.0	-
4	203.0	-
4	202.5	+
4	202.0	+
4	201.5	+
4	201.0	-
4	200.5	+	995.8
4	200.0	-
4	200.0	-

 

In the main test, the lowest temperature where an ignition occurred was 200.5 °C. The measured flash point is corrected to the ambient pressure to be 200.9 °C. The resulting flash point corrected down to the nearest multiple of 0.5 °C is 200.5 °C.

Description of key information

200.5 °C at 1013 hPa (EU Method A.9, equilibrium method closed cup)

Key value for chemical safety assessment

Flash point at 101 325 Pa:

200.5 °C