Tetrasodium 4-amino-5-hydroxy-6-[[2-methoxy-5-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-3-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

February 27, 2015 - March 02, 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

other: Guideline VDI 2263, sheet 1 (Grewer-oven) and UN Recommendations on the Transport of Dangerous Goods, fifth revised edition, 2009, Appendix 6

Deviations:

no

GLP compliance:

no

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Key result

Relative self-ignition temperature:

>= 230 °C

Individual results

2.8 g of the test item were placed into the wire-basket.

The temperature of the test item showed an exothermal effect starting at 230 °C. This exothermal effect led to a maximum temperature of > 550 °C. After the test the test item was discoloured to black, the mesh wire basket was still filled to approximately 50 %.

Conclusions:

Self-ignition was observed starting at 230 °C.

Executive summary:

According to the guideline VDI 2263, sheet 1 (Grewer-Oven) a self-ignition was observed at 230 °C.

Due to these results the test item does not have to be classified as a “self-heating substance”, class 4.2 of the Recommendations on the Transport of Dangerous Goods / Manual of Tests and Criteria and according to chapter 2.11[1] of the GHS (CLP) regulations.

[1] Chapter 2.11 of the UN Globally harmonized system of classification and labelling of chemicals (GHS), 4^th revised edition, 2011 (UN GHS) and also chapter 2.11 in the CLP regulation1272/2008 (EU GHS).

Description of key information

The relative self-ignition temperature of the test item was determined according to the Guideline VDI 2263, sheet 1 (Grewer-oven) UN Recommendations on the Transport of Dangerous Goods, fifth revised edition, 2009, Appendix 6 to be 230°C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

230 °C

Additional information

According to the guideline VDI 2263, sheet 1 (Grewer-Oven) a self-ignition of the test item was observed at 230 °C.

Due to these results the test item does not have to be classified as a “self-heating substance”, class 4.2 of the Recommendations on the Transport of Dangerous Goods / Manual of Tests and Criteria and according to chapter 2.11 [1] of the GHS (CLP) regulations.

[1] Chapter 2.11 of the UN Globally harmonized system of classification and labelling of chemicals (GHS), 4^th revised edition, 2011 (UN GHS) and also chapter 2.11 in the CLP regulation1272/2008 (EU GHS).

The results apply only to the classes investigated. Therefore it cannot be excluded by this report that any other classifications have to be applied to the sample. The classification was done according to the criteria of the UN Recommendations on the Transport of Dangerous Goods (Manual of Test and Criteria, 5th revised edition).