Reaction product of trimethylhexamethylenediisocyanate and (3-mercaptopropyl)trimethoxysilane

Auto flammability

Administrative data

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

06/04/2018 - 31/05/2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)

Deviations:

no

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

2,4,4 TMDI function group 1 + mercaptan, mono-reacted

IUPAC Name:

2,4,4 TMDI function group 1 + mercaptan, mono-reacted

Constituent 2

Reference substance name:

2,4,4 TMDI function group 2 + mercaptan, mono-reacted

IUPAC Name:

2,4,4 TMDI function group 2 + mercaptan, mono-reacted

Constituent 3

Reference substance name:

2,2,4 TMDI function group 1 + mercaptan, mono-reacted

IUPAC Name:

2,2,4 TMDI function group 1 + mercaptan, mono-reacted

Constituent 4

Reference substance name:

2,2,4 TMDI function group 2 + mercaptan, mono-reacted

IUPAC Name:

2,2,4 TMDI function group 2 + mercaptan, mono-reacted

Constituent 5

Reference substance name:

2,2,4 bi-reacted compound

IUPAC Name:

2,2,4 bi-reacted compound

Constituent 6

Reference substance name:

2,4,4 bi-reacted compound

IUPAC Name:

2,4,4 bi-reacted compound

Constituent 7

Reference substance name:

2,4,4-trimethylhexa-1,6-diyl diisocyanate

EC Number:

239-714-4

EC Name:

2,4,4-trimethylhexa-1,6-diyl diisocyanate

Cas Number:

15646-96-5

Molecular formula:

C11H18N2O2

IUPAC Name:

1,6-diisocyanato-2,4,4-trimethylhexane

Constituent 8

Reference substance name:

2,2,4-trimethylhexa-1,6-diyl diisocyanate

EC Number:

241-001-8

EC Name:

2,2,4-trimethylhexa-1,6-diyl diisocyanate

Cas Number:

16938-22-0

Molecular formula:

C11H18N2O2

IUPAC Name:

1,6-diisocyanato-2,2,4-trimethylhexane

Test material form:

liquid

Specific details on test material used for the study:

Identification: Thio Isocyanate Adduct
Appearance: Colourless liquid
Batch: BZA11014
Store at room temperature under nitrogen

Results and discussion

Auto-ignition temperature (liquids / gases)

Key result

Auto-ignition temperature:

250 °C

Atm. press.:

1 016 hPa

Any other information on results incl. tables

Commercially available auto-ignition temperature apparatus was used to determine the auto-ignitability of the test item, Thio Isocyanate Adduct.

Preliminary test: the estimated auto-ignition temperature was 365 °C.

Main Study: the results of the determination of the auto-ignition temperature of the test item are given in the table below.

Test	Volume [μL]	Auto-ignition temperature [°C]	Ignition delay [s]	Colour of the flame	Minimum auto-ignition temperature [°C]
1	70	367	5	orange	252
	150	358	8	orange/blue
	250	339	5	orange/blue
	500	261	17	orange/blue
	1000	252	131	orange/blue
2	300	334	13	orange/blue	256
	450	262	15	orange/blue
	900	256	28	orange
3	200	352	10	orange/blue	255
	700	261	18	orange
	950	255	36	orange/blue

 

The maximum deviation between the three values was <10 °C, according to the guidelines, no further testing was required. The lowest temperature at which ignition of the test item occurred was 252 °C. This temperature was rounded down to the nearest multiple of 5 °C giving an auto-ignition temperature of the test item of 250 °C.

Applicant's summary and conclusion

Conclusions:

The test item has an auto-ignition temperature of 250 °C.

Executive summary:

The auto flammability of the test item was measured according to EC Method A.15, DIN 51794. The test item was deteremined to have an auto-ignition temperature of 250 °C.