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Diss Factsheets

Physical & Chemical properties

Auto flammability

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
auto-flammability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
29 Jan to 06 Feb 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Qualifier:
according to guideline
Guideline:
other: DIN EN 14522, Method S
GLP compliance:
no
Auto-ignition temperature:
243 °C
Atm. press.:
1 013 hPa

Results

Preliminary test

 

No.

Test temperature

[°C]

Number of sample drops

Result concerning ignition

negative (-)

positive (+)

Atmospheric pressure [hPa]

1

255.4

5

-

945

2

248.0

5

-

3

309.7

5

+

 

Lowest test temperature = 309.7 °C

 

 

Summary

 

Parameter

Value

Lowest value of test series 1:

247 °C

Lowest value of test series 2:

250 °C

Lowest value of test series 3:

248 °C

Lowest value of all test series

247 °C

Absolute deviation of the lowest value (1.5%)

3.7 °C

 

Auto-ignition temperature: 243 °C

 

Remarks

According to DIN EN 14522 the lowest value of all test series (247 °C) was reduced by the deviation value based on the precision of the method (rel. 1.5% = 3.7 °C). The resulting value was rounded to the next integral number (243 °C).

Conclusions:
An auto-ignition temperature of 243 °C was determined in a reliable study conducted according to an appropriate test protocol. It was not compliant with GLP.

Description of key information

Diethoxy(methyl)silane: 243°C at 1013 hPa (EU Method A.15, DIN 14522, method S)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
243 °C

Additional information