Didecyldimethylammonium chloride

Auto flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From Nov. 05, 2001 - Nov. 08, 2001

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.16 (Relative Self-Ignition Temperature for Solids)

Version / remarks:

(Cited as Directive 92/69/EEC, A.16)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Relative self-ignition temperature:

ca. 195 °C

Remarks on result:

other: the test substance is self-ignitable

A self heating of the test substance was observed at approximately 195°C, with a maximum sample temperature of approximately 500°C.

Conclusions:

Under the test conditions the test substance was classified as self-ignitable at approximately 195°C.

Executive summary:

A study was conducted to determine the self-ignition of the test substance 'didecyldimethylammonium chloride' (DDAC) according to EU Method A.16

(Relative Self-Ignition Temperature for Solids). There was observed self heating of the test substance at approximately 195°C, with a maximum sample temperature of approximately 500°C. Under the test conditions the test substance was classified as self-ignitable at approximately 195°C.

Reference 2

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Jan 9, 2002 - Jan 11, 2002

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))

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Auto-ignition temperature:

ca. 350 °C

Atm. press.:

ca. 104.7 kPa

Remarks on result:

other:

None

Conclusions:

The auto-ignition temperature of the test substance was found to be 350°C at 104.7 kPa.

Executive summary:

The auto-ignition temperature of the test substance was determined according to EU method A15. The autoignition temperature is the minimum measured temperature of a flammable substance in mixture with air at which an ignition is observed in the test equipment. Beginning with the determined starting temperature the sample was added to the flask in the same portions as in the preliminary test while decreasing the temperature by 5 K at a time, up to the moment a temperaure was reached at which no ignition was observed for the first time. Series of tests was conducted to determine the auto-ignition temperature. The auto-ignition temperature of the test substance was found to be 350°C at 104.7 kPa.

Reference 3

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

February 16, 2007 - April 27, 2007

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.16 (Relative Self-Ignition Temperature for Solids)

Version / remarks:

Cited as Directive 92/69/EEC, A.16

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Relative self-ignition temperature:

> 403 °C

Remarks on result:

other:

Remarks:

at atm. press. of 1013.0 hPa

No self-ignition temperature was observed up to the maximum test temperature of 403°C.

Conclusions:

No autoignition was observed when the purified susbtance was heated until 403°C

Executive summary:

The autoflammability of the test substance was determined according to EU Method A.16 (Relative Self-Ignition Temperature for Solids). No autoignition was observed when the purified susbtance was heated until 403°C.

Reference 4

Endpoint:

relative self-ignition temperature (solids)

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is a solid having a melting point <= 160°C

Reason / purpose for cross-reference:

data waiving: supporting information

Description of key information

The autoflammability of the solid test substance was determined in two studies conducted according to EU Method A.16 (Möller, 2007 and Keipert, 2001). The autoflammability of the liquid form was determined according to EU Method A.15 (Keipert, 2002).

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

195 °C

Additional information

The solid form of the test substance was found to be self-ignitable at 195°C and the liquid form at 350°C.

An additional relative self-ignition study with the solid form of the test substance did not indicate self-ignition up to 403 °C. 

 

As a conservative approach the lower self-ignition temperature of 195°C has been considered further for hazard/risk assessment.