α-trimethylsilanyl-ω-trimethylsiloxypoly[oxy(methyl-3-(2-(2-methoxypropoxy)propoxy)propylsilanediyl]-co-oxy(dimethylsilane))

Auto flammability

Administrative data

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

April 4 - 5, 1991

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP study.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1991

Report date:

1991

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

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

Test guideline 2

Qualifier:

according to guideline

Guideline:

other: DIN 51794: "Bestimmung der "Zündtemperatur", January 1978.

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

α-trimethylsilanyl-ω-trimethylsiloxypoly[oxy(methyl-3-(2-(2-methoxypropoxy)propoxy)propylsilanediyl]-co-oxy(dimethylsilane))

EC Number:

406-420-4

EC Name:

α-trimethylsilanyl-ω-trimethylsiloxypoly[oxy(methyl-3-(2-(2-methoxypropoxy)propoxy)propylsilanediyl]-co-oxy(dimethylsilane))

Cas Number:

69430-40-6

Molecular formula:

Unspecified example: C18.3H46.8O5.8Si4.1

IUPAC Name:

2,2,4,4,6,12,15-heptamethyl-6-[(trimethylsilyl)oxy]-3,5,10,13,16-pentaoxa-2,4,6-trisilaheptadecane

Details on test material:

Identification: DC 5067
Description: Clear, light brown liquid
Lot Number: AB 090122
Purity: >99%
Storage conditions: In the original container at room temperature in the dark
Stability under storage conditions: Stab1e
Expiry date: December 1, 1991

Results and discussion

Auto-ignition temperature (liquids / gases)

Auto-ignition temperature:

245 °C

Atm. press.:

ca. 1 013.25 hPa

Remarks on result:

other:

Any other information on results incl. tables

Figure 1 in the attached report shows the correlation between injected test substance volume and the self-ignition temperature for all 3 tests. The self-ignition temperature for DC 5067 was 246°C (lowest determined self-ignition temperature), with an injection volume of 175 +-1 and a time lag of 5 s (see Table 1).

Table 1: Summary of results

Test Number	Self-ignition temperature [°C]	Injected volume [µl]	time lag [s]
Part 1 test1	250	175	7
Part 2 test 1	254	175	6
test 2	246	175	5

 

In conclusion, DC 5067 is auto-flammable under the conditions of the test, with a self-ignition temperature of 245°C.

Applicant's summary and conclusion

Conclusions:

DC 5067 is auto-flammable under the conditions of the test, with a self-ignition temperature of 245OC.

Executive summary:

The determination of the auto-flammability of DC 5067 was performed in accordance with EEC-Directive A-15: "Auto-flammability (determination of the temperature of self-ignition of volatile liquids and gases)", September 1984 and DIN 51794: Bestimmung der Zündtemperatur", January 1978. The test was performed in triplicate. A lowest self-ignition temperature of 246°C was found under the conditions of the test, with an Injection volume of 175 µl. In conclusion, DC 5067 is auto-flammable with a self-ignition temperature of 245°C.