Hop, Humulus lupulus, ext., isomerized, potassium salt

Auto flammability

Administrative data

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

weight of evidence

Study period:

2 to 4 October 2017

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other:

Version / remarks:

The testing laboratory is GLP compliant and the test was carried out according to the principles of GLP. An internal standard operating procedure was followed for the direct scanning calorimetry tests.

Principles of method if other than guideline:

Date 02/10/2017
SOP Reference CTL SOP 320
Test System DSC System 1
Test Filename DSC4028001957A
Crucible Type Gold-lined steel (high pressure, sealed)
Sample Preparation Tested as received
Start Temperature -40°C
Trip Temperature 400°C
Ramp Rate 4 K.min-1
Test Atmosphere Air
Sample Mass 4.7 mg

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

Hop, Humulus lupulus, ext., isomerized, potassium salt

EC Number:

305-203-0

EC Name:

Hop, Humulus lupulus, ext., isomerized, potassium salt

Cas Number:

94349-84-5

IUPAC Name:

Hop, Humulus lupulus, ext., isomerized, potassium salt

Test material form:

solid

Remarks:

Resinous solid. Becomes flowable above 60 oC.

Specific details on test material used for the study:

Batch no. EXP 7

Results and discussion

Auto-ignition temperature (liquids / gases)

Key result

Remarks on result:

other: The DSC trace shows that there are no dangerous events up to 140 oC.

Any other information on results incl. tables

Notes from the test report: "The sample was observed to undergo an endothermic event from -14.8°C (23.5 J.g-1). An exothermic event was then observed to commence from 75.1°C which had a heat of decomposition of -21.1 J.g-1. A second exothermic event was then observed to commence from 142.8°C which had a heat of decomposition of -231.2 J.g-1. No further significant energetic events were noted up to 400°C."

The DSC plot is attached - see "Illustration (picture/graph)"

Applicant's summary and conclusion

Conclusions:

The sample was observed to undergo an endothermic event from -14.8°C (23.5 J.g-1). An exothermic event was then observed to commence from 75.1°C which had a heat of decomposition of -21.1 J.g-1. A second exothermic event was then observed to commence from 142.8°C which had a heat of decomposition of -231.2 J.g-1. No further significant energetic events were noted up to 400°C.
The exothermic decomposition is less than 500 J per g (Regulation (EC) 1272/2008, Annex I, Part 2, 2.1.4.3 (c)), so the material is not explosive, and it is less than 300 J per g (Regulation (EC) 1272/2008, Annex I, Part 2, 2.8.2.1) so it is not self-reactive.
The flash point is >80 oC. The DSC trace shows no dangerous events when heating to 140 oC.