long chain alkyl thio carbamide metal complex

Auto flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2003-03-21 to 2003-05-12

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

Qualifier:

according to guideline

Guideline:

other: BS 4056

Deviations:

not specified

GLP compliance:

yes (incl. QA statement)

Key result

Auto-ignition temperature:

ca. 298 °C

Atm. press.:

>= 1 013 - <= 1 017 mBar

Conclusions:

In a GLP study conducted according to BS 4056, the auto-ignition temperature of EC# 457-320-2 was 298oC

Executive summary:

In a GLP study conducted according to BS 4056, the auto-ignition temperature of EC# 457-320-2 was determined in an open Erlenmeyer flask in a refractory oven.

At temperatures between 200 and 296^oC, no ignition was seen (the material giving off grey smoke only) after more than 300 seconds. At temperatures of 298 and 300^oC the material burnt with a yellow flame after 66 and 68 seconds, respectively, and at 400^oC after only 2 seconds. No ignition was obtained in the replicate samples heated to 296^oC.

In conclusion, the auto-ignition temperature of EC# 457-320-2 test material was determined to be 298^oC.

Reference 2

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

March 1999 to July 1999

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Qualifier:

according to guideline

Guideline:

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

GLP compliance:

yes

Specific details on test material used for the study:

Appearance: Black viscous liquid
Purity: > 98%
Storage: Room temperature in the dark

Key result

Auto-ignition temperature:

360 °C

Atm. press.:

1 029 mBar

Auto-ignition temperature:

363 °C

Atm. press.:

1 019 mBar

An auto-ignition temperature will be reported as the lower of the two obtained results for safety reasons.

Conclusions:

The auto-ignition temperature of the test substance is 360°C at 1029 mbar.

Executive summary:

The auto-ignition temperature is the lowest temperature at which the test substance will ignite when mixed with air under the conditions defined in the test method. The units are degrees Celsius.

A known volume of the test substance was injected into a heated open round-bottomed flask (500 m1) containing air. The contents of the flask were observed in a darkened room for ten minutes following injection of a sample or until ignition occurred. Due to the high viscosity of the test substance the material and syringe where kept at 100°C in order to reduce the viscosity and enable injections to be made. A temperature of 400°C was chosen as a starting point above the expected auto-ignition temperature. Test substance (100 ,.d) was injected into the flask, and observations made for auto-ignition up to a maximum time of 10 minutes. The test was repeated at this temperature using injection volumes of 150,200,250 and 50 ul to see if ignition would occur.

The auto-ignition temperature of the test substance is 360°C at 1029 mbar.

Reference 3

Endpoint:

auto-ignition temperature (liquids)

Type of information:

read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

supporting study

Reason / purpose for cross-reference:

read-across: supporting information

Key result

Auto-ignition temperature:

360 °C

Atm. press.:

1 029 mBar

Auto-ignition temperature:

363 °C

Atm. press.:

1 019 mBar

Conclusions:

The auto-ignition temperature of the test substance is 360°C at 1029 mbar.

Executive summary:

The auto-ignition temperature is the lowest temperature at which the test substance will ignite when mixed with air under the conditions defined in the test method. The units are degrees Celsius.

A known volume of the test substance was injected into a heated open round-bottomed flask (500 m1) containing air. The contents of the flask were observed in a darkened room for ten minutes following injection of a sample or until ignition occurred. Due to the high viscosity of the test substance the material and syringe where kept at 100°C in order to reduce the viscosity and enable injections to be made. A temperature of 400°C was chosen as a starting point above the expected auto-ignition temperature. Test substance (100 ,.d) was injected into the flask, and observations made for auto-ignition up to a maximum time of 10 minutes. The test was repeated at this temperature using injection volumes of 150,200,250 and 50 ul to see if ignition would occur.

The auto-ignition temperature of the test substance is 360°C at 1029 mbar.

Given the chemical and structural similarities between EC: 457 -320 -2 and EC: 434 -650 -5, this study is considered suitable for read-across.

Description of key information

In a GLP study conducted according to BS 4056, the auto-ignition temperature of EC# 457-320-2 was 298oC

A supporting GLP study on EC: 434-650-5 was also added to the dataset to support the chemical similarities between these substances. The auto-ignition temperature of EC:434 -650 -5 was concluded to be 360 degrees C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

298 °C