1,1-dimethylprop-3-ynylamine

Flash point

Administrative data

Endpoint:

flash point of flammable liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

3 June 2014 to 30 June 2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: see 'Remark'

Remarks:

Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, done to a valid guideline and the study was conducted under GLP conditions.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2014

Report date:

2014

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

ISO 13736:1997 (Petroleum products and other liquids - Determination of flash point - Abel closed cup method)

Version / remarks:

1997

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

non-equilibrium method closed cup

Test material

Test material information

Constituent 1

Reference substance name:

1,1-dimethylprop-3-ynylamine

EC Number:

221-029-7

EC Name:

1,1-dimethylprop-3-ynylamine

Cas Number:

2978-58-7

Molecular formula:

C5H9N

IUPAC Name:

2-methylbut-3-yn-2-amine

Test material form:

other: liquid

Details on test material:

- Appearance: pale yellow liquid

Results and discussion

Flash point

Flash point:

< 7 °C

Atm. press.:

101.2 kPa

Any other information on results incl. tables

Results:

Temperature (°C)	Barometric pressure (kPa)	Ignition	Halo/Enlarged test flame
7	101.2	yes	no

Comment: The substance MSDS stated the sample has a flash point of 6.1°C.

The sample was placed in a freezer (below -20°C) and was found to be frozen. Even at 3°C the test material was still partially frozen. The sample was found to be fully liquid at 7°C and when tested was observed to flash with a large blue flame. It was not possible to test the sample at lower temperatures using the available methods. The Seta Flash method was investigated but this was also found to be unsuitable.

Applicant's summary and conclusion

Conclusions:

Under the conditions of the study the flash point of the test material was determined to be < 7°C at 101.2 kPa.
Since the boiling point of the substance is reported as 82°C (non-GLP data) the substance is classified as a flammable liquid Category 2 on the basis of this result.

Executive summary:

The flash point of the test material was determined in a study which was conducted under GLP conditions and in accordance with the standardised guideline ISO 13736 BS 2000 Part 170 following a closed cup method, utilising Abel apparatus.

Under the conditions of the study the flash point of the test material was determined to be < 7°C at 101.2 kPa. No correction of the result was required due to barometric pressure.