Dimethoxymethylsilane

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 Apr 2013 - 19 Apr 2013

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

comparable to guideline study

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

(2008)

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: DIN Guide 51794: "Determining the Ignition Temperature of Petroleum Products" (2003)

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: IEC standard 79-4: "Electrical Apparatus for Explosive Gas Atmospheres, Part 4, Method of Test for Ignition Temperature" (1975)

Deviations:

no

GLP compliance:

yes

Key result

Auto-ignition temperature:

260 °C

Atm. press.:

> 1 016.22 - < 1 023.1 hPa

Remarks on result:

other: The lowest temperature at which ignition of the test substance occurred was 264°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test substance of 260°C.

Results

Preliminary test

The estimated auto-ignition temperature was 305°C.

Main study

The results of the main study on the determination of the auto-ignition temperature of the test substance are given in the Table.

Ignition of the test substance within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. 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 substance occurred was 264°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test substance of 260°C.

Table: Main study – auto-ignition temperature of the test substance

Test	Volume     (µl)	Auto-ignition temperature   (°C)	Ignition delay     (s)	Colour of the flame	Minimum auto-ignition temperature (°C)
1	70	296	9	Orange/Yellow	264
	180	280	18	Orange/Yellow
	300	274	33	Orange/Yellow
	600	268	24	Orange/Yellow
	800	264	48	Orange/Yellow
	1000	274	32	Orange/Yellow
2	200	278	18	Orange/Yellow	270
	500	270	26	Orange/Yellow
	900	272	23	Orange/Yellow
3	400	276	19	Orange/Yellow	264
	700	264	26	Orange/Yellow
	950	274	25	Orange/Yellow

 

Conclusion

Commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of Methyldimethoxysilane.

The test substance is auto-ignitable with an auto-ignition temperature of 260°C at 1016.2 - 1023.1 hPa.

Conclusions:

TAn auto-ignition temperature of 260 °C was determined in a reliable study conducted according to an appropriate test protocol, and in compliance with GLP.

Description of key information

260°C at 1016.2 - 1023.1 hPa (EU Method A.15)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

260 °C

Additional information