Rhodium tris(2-ethylhexanoate)

Flash point

Link to relevant study record(s)

Reference

Endpoint:

flash point of flammable 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.9 (Flash-Point)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

equilibrium method closed cup

Flash point apparatus:

other: Normalab NPV310, Inv. No. 49405775

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

Flash point:

74.5 °C

Atm. press.:

1 013 hPa

The lowest flash point of the preliminary test corrected to 1013 hPa is rounded down with an accuracy of 0.5 °C: 74.5 °C.

The lowest flash point of the main test (equilibration times: 60 and 300 seconds, respectively) corrected to 1013 hPa is rounded down with an accuracy of 0.5 °C: 77.0 °C.

The flash point found in the preliminary test was lower than the flash of the main test. For safety reasons the flash point of the preliminary test is reported.

Table 1: Preliminary test

Test item / ml	Starting temperature / °C	Temperature / °C	Ignition + / -	Barometric pressure / hPa
2	20.0	81.0	+	999.2
2	20.0	76.5	+
2	56.5	74.5	+

Table 2: Main test, equilibration time: 60 seconds

Test item / g	Temperature / °C	Ignition + / -	Barometric pressure / hPa
2	74.5	-	998.8
2	79.5	-
2	84.5	+
2	79.5	-
2	80.5	-
2	81.5	+
2	81.0	-
2	81.5	+
2	81.0	-
2	81.5	+
2	81.0	-

Table 3: Main test, extended equilibration time: 300 seconds

Test item / g	Temperature / °C	Ignition + / -	Barometric pressure / hPa
2	77.0	+	1007.4
2	76.5	-
2	77.0	+
2	76.5	-
2	77.0	+
2	76.5	-

Interpretation of results:

GHS criteria not met

Conclusions:

The flash point found in the preliminary test was lower than the flash point of the main test. The lowest flash point of the test item was 74.5 °C under atmospheric conditions (1013 hPa).

Executive summary:

Nau (2018) is a GLP-compliant study following EU method A9. It is reliable without restrictions and can be used as the key study for this endpoint. The flash point found in the preliminary test was lower than the flash point of the main test. The lowest flash point of the test item was 74.5 °C under atmospheric conditions (1013 hPa).

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.

Rhodium tris(2-ethylhexanoate), solvent 2-ethylhexan-1-ol had a lowest flash point of 74.5°C under atmospheric conditions (1013 hPa).

Rhodium tris(2-ethylhexanoate), solvent 2-ethylhexanoic acid had a lowest flash point of 112°C under atmospheric conditions (1013 hPa).

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 (2018a) is a GLP-compliant study following EU method A9 and assessed the flash point of rhodium tris(2-ethylhexanoate), solvent 2-ethylhexan-1-ol. It is reliable without restrictions and can be used as the key study for this endpoint. The flash point found in the preliminary test was lower than the flash point of the main test. The lowest flash point of the test item was 74.5°C under atmospheric conditions (1013 hPa).

Nau (2018b) is a GLP-compliant study following EU method A9 and assessed the flash point of rhodium tris(2-ethylhexanoate), solvent 2-ethylhexanoic acid. It is reliable without restrictions and can be used as the key study for this endpoint. The flash point found in the preliminary test was lower than the flash point of the main test. The lowest flash point of the test item was 112°C under atmospheric conditions (1013 hPa).