Rhodium tris(2-ethylhexanoate)

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

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)

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Expiration date of the lot/batch: March 31, 2018
- Purity test date: Inspection certificate dated September 22, 2017

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Ambient temperature (10 °C to 30 °C), dry

FORM OF THE TEST ITEM
- Purity: 2.07% rhodium
- Form: Liquid
- Appearance: Brownish liquid
- Solvent: 2-ethylhexan-1-ol

Key result

Auto-ignition temperature:

300 °C

Atm. press.:

992.5 hPa

Table 1: Auto-ignition temperature (preliminary test)

Preliminary test
T / °C	portions	+ / -	Time lag / s
202	5	-	-
252	5	-	-
302	5	+	10
272	5	-	-
292	5	-	-
297	5	-	-
barometric pressure: 1018.6 hPa

The lowest auto-ignition temperature of the test item was determined to be 302 °C in the preliminary test.

Table 2: Auto-ignition temperature (1^stmain test, part 1)

1^stmain test (5 K steps)				1^stmain test continued (5 K steps)
T / °C	portions	+ / -	Time lag / s	T / °C	portions	+ / -	Time lag / s
302	5	-	-	297	1	-	-
307	5	+	8	297	9	-	-
302	5	-	-	297	8	-	-
302	2	-	-
302	10	+	2
297	10	-	-
297	4	-	-
297	7	-	-
297	2	-	-
297	6	-	-
297	5	-	-
297	3	-	-
barometric pressure: 1014.3 hPa				barometric pressure: 1012.6 hPa

Table 3: Auto-ignition temperature (1^stmain test, part 2)

1^stmain test (2 K steps)
T / °C	portions	+ / -	Time lag / s
302	10	+	13
300	10	-	-
300	2	-	-
300	5	-	-
300	1	-	-
300	4	-	-
300	7	-	-
300	8	-	-
300	3	-	-
300	9	-	-
300	6	-	-
barometric pressure: 1013.9 hPa

 

Table 4: Auto-ignition temperature (2^ndmain test)

2^ndmain test (2 K steps)
T / °C	portions	+ / -	Time lag / s
303	10	+	10
301	10	+	10
299	10	-	-
299	5	-	-
299	3	-	-
299	4	-	-
299	8	-	-
299	7	-	-
299	2	-	-
299	1	-	-
299	6	-	-
299	9	-	-
barometric pressure: 1003.0 hPa

Table 5: Auto-ignition temperature (3^rdmain test)

3^rdmain test (2 K steps)
T / °C	portions	+ / -	Time lag / s
301	10	+	8
299	10	-	-
299	7	-	-
299	3	-	-
299	5	-	-
299	1	-	-
299	2	-	-
299	9	-	-
299	8	-	-
299	4	-	-
299	6	-	-
barometric pressure: 992.5 hPa

Table 6: Auto-ignition temperature (summary)

Main test series	Auto-ignition temperature / °C	Time lag / s
1^stmain test (5 K)	302	2
1^stmain test (2 K)	302	13
2^ndmain test (2 K)	301	10
3^rdmain test (2 K)	301	8

Conclusions:

The auto-ignition temperature was determined to be 300°C.

Executive summary:

Nau (2018) is a GLP-compliant study following EU method A15. A preliminary test was performed, followed by a main test. The study is considered to be reliable without restrictions (Klimisch 1). The auto-ignition temperature was determined to be 300°C.

Description of key information

Rhodium tris(2-ethylhexanoate) is placed on the market with two different solvents, 2-ethylhexan-1-ol and 2-ethylhexanoic acid. Information on both compositions is therefore included.

For rhodium tris(2-ethylhexanoate), solvent 2-ethylhexan-1-ol, the auto-ignition temperature was determined to be 300°C.

For rhodium tris(2-ethylhexanoate), solvent 2-ethylhexanoic acid, the auto-ignition temperature was determined to be 310°C.

Additional information

Rhodium tris(2-ethylhexanoate) is placed on the market with two different solvents, 2-ethylhexan-1-ol and 2-ethylhexanoic acid. Information on both compositions is therefore included.

Nau (2018) is a GLP-compliant study following EU method A15. A preliminary test was performed, followed by a main test. The study is considered to be reliable without restrictions (Klimisch 1). The auto-ignition temperature for rhodium tris(2-ethylhexanoate), solvent 2-ethylhexan-1-ol was determined to be 310°C.

Nau (2018) is a GLP-compliant study following EU method A15. A preliminary test was performed, followed by a main test. The study is considered to be reliable without restrictions (Klimisch 1). The auto-ignition temperature for rhodium tris(2-ethylhexanoate), solvent 2-ethylhexanoic acid was determined to be 310°C.