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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)
GLP compliance:
no
Test procedure:
burning rate test with wetted zone
Burning time:
>= 4.8 - <= 5.8 s
Remarks on result:
flame passes the wetted zone
Test procedure:
burning rate test: preliminary screening test
Burning time:
11.8 s
Remarks on result:
other:
Remarks:
The burning time for a measuring length of 200 mm

Burning rate test results for (Acetylacetonato) dicarbonyle Rhodium (I):

Description of burning behaviour flames/glow/ashes                 Burning time for a measureing section of 100 mm of length
   Test 1  Test 2  Test 3  Test 4  Test 5  Test 6
 The substance could be ignitd and a fast burning was observed  4.8 s  5.0 s  5.4 s  5.8 s  5.4 s  5.0 s
 Does the wetted zone stop the propagation of the flame for at least 4 min?  No  No  No  No  No  No
Interpretation of results:
Category 1 (flammable solids) based on GHS criteria
Conclusions:
The substance dicarbonyl(pentane-2,4-dionato-O,O')rhodium is classified under Division 4.1 "Flammable Solids", packing group II of the UN Recommendation on the Transport of Dangerous Goods and is classified in Hazard Class "Flammable Solids", category 1 according to the criteria specified in Regulation (EC) No 1272/2008 (CLP-/GHS-Regulation).
Executive summary:

This is a non-GLP study following UN method N1 and is considered suitable for assessment as the key study for this endpoint.

The substance dicarbonyl(pentane-2,4 -dionato-O,O')rhodium fulfils the criteria of Division 4.1 "Flammable Solids", packing group II of the UN Recommendations on the Transport of Dangerous Goods, because the burning time along the 100 mm powder train was less than 45 s and the flame passed the wetted zone. On the basis of the test results and according to the criteria specified in the Regulation (EC) No 1272/2008 (CLP-/GHS-Regulation) this substance is classified to the Hazard Class "Flammable Solids", category 1 according to the Regulation (EC) No 1272/2008 (CLP-/GHS-Regulation).

Description of key information

Dicarbonyl(pentane-2,4-dionato-O,O')rhodium is classified as a flammable substance under Division 4.1 "Flammable Solids", packing group II of the UN Recommendations on the Transport of Dangerous Goods and is classified to the Hazard Class "Flammable Solids", category 1 according to the Regulation (EC) No 1272/2008 (CLP-/GHS-Regulation).

Key value for chemical safety assessment

Flammability:
flammable

Additional information

Michael-Schulz (2012) is a non-GLP study following UN method N1 and is considered reliable and suitable for use as the key study for this endpoint. The substance dicarbonyl(pentane,2,4 -dionato-O,O')rhodium fulfils the criteria of Division 4.1 "Flammable Solids", packing group II of the UN Recommendations on the Transport of Dangerous Goods, because the burning time along the 100 mm powder train is less than 45 s and the flame passes the wetted zone. On the basis of the test results and according to the criteria specified in the Regulation (EC) No 1272/2008 (CLP-/GHS-Regulation) this substance is classified to the Hazard Class "Flammable Solids", category 1 according to the Regulation (EC) No 1272/2008 (CLP-/GHS-Regulation).

Justification for classification or non-classification

The substance dicarbonyl(pentane,2,4 -dionato-O,O')rhodium fulfils the criteria of Division 4.1 "Flammable Solids", packing group II of the UN Recommendations on the Transport of Dangerous Goods, because the burning time along the 100 mm powder train is less than 45 s and the flame passes the wetted zone. On the basis of the test results and according to the criteria specified in the Regulation (EC) No 1272/2008 (CLP-/GHS-Regulation) this substance is classified to the Hazard Class "Flammable Solids", category 1 according to the Regulation (EC) No 1272/2008 (CLP-/GHS-Regulation).