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EC number: 813-788-3 | CAS number: 1803551-73-6
Oxidising properties
Administrative data
Link to relevant study record(s)
- Endpoint:
- oxidising solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- according to guideline
- Guideline:
- UN Manual of Tests and Criteria: Test O.3 (Gravimetric test for oxidizing solids)
- Deviations:
- no
- GLP compliance:
- no
- Specific details on test material used for the study:
- Storage: Room temperature under nitrogen atmosphere (substance is hygroscopic)
- Contact with:
- powdered cellulose
- Duration of test (contact time):
- 300 s
- Sample tested:
- 1:1 sample-to-cellulose ratio
- Parameter:
- burning rate
- Result:
- 0.05 g/s
- Remarks on result:
- other: Arithmetic mean
- Sample tested:
- 4:1 sample-to-cellulose ratio
- Parameter:
- burning rate
- Result:
- 0.02 g/s
- Remarks on result:
- other: Arithmetic mean
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- RFR 6634 has no oxidizing properties when tested according to UN-MTC Procedure O.3.
- Executive summary:
RFR 6634 is hygroscopic. The test substance was taken from the sample container in a nitrogen atmosphere.
The test was performed as stipulated in UN-MTC Procedure O.3 ‘Gravimetric test for oxidizing solids'.
The substance in its delivery state was measured. The solid was mixed in a 1:1 and 4:1 ratio, by mass, with fibrous cellulose. Separate aliquots of 30 ± 0.1 g of each mixture were formed into method given conical piles and ignited by means of an electrically-heated ignition wire.
The burning rate (BR) depends on the burning intensity and the amount of cellulose in the mixture. Therefore it is defined as the quotient of 60 % of the total amount of cellulose in the conical pile and the main combustion time t20-80. The time t20-80 is the time between 20 % and 80 % of the total mass loss. The total mass loss is the difference in mass before ignition and at the end of the main reaction, which is defined as a rate of mass loss less than 1 g per minute.
Detailed results:
Mixture 1:1 (substance : cellulose)
Test Run
Weighed Portion Ignition Energy t20-80
BR20 -80 Substance Cellulose 1 15 g 15 g 153 W 153 s* 0.06 g/s 2 15 g 15 g 153 W 183 s* 0.05 g/s 3 15 g 15 g 153 W 191 s* 0.05 g/s 4 15 g 15 g 153 W 179 s* 0.05 g/s 5 15 g 15 g 153 W 191 s* 0.05 g/s * burning time > 300 s Arithmetic mean: 0.05 g/s Mixture 4:1 (substance : cellulose)
Test Run
Weighed Portion Ignition Energy t20-80
BR20 -80 Substance Cellulose 1 24 g 6 g 153 W 146 s* 0.02 g/s 2 24 g 6 g 153 W 139 s* 0.03 g/s 3 24 g 6 g 153 W 129 s* 0.03 g/s 4 24 g 6 g 153 W 146 s* 0.02 g/s 5 24 g 6 g 153 W 146 s* 0.02 g/s * burning time > 300 s Arithmetic mean: 0.02 g/s Mean values of the reference mixtures:
Mixture 3:1 (calcium peroxide : cellulose) BR20-80mean: 1.13 g/s
Mixture 1:1 (calcium peroxide : cellulose) BR20-80mean: 0.62 g/s
Mixture 1:2 (calcium peroxide : cellulose) BR20-80mean: 0.21 g/s
The burning rate of the substance is significantly below the burning rate of reference mixture.
RFR 6634 has no oxidizing properties when tested according to UN-MTC Procedure O.3.
Reference
Detailed results:
Mixture 1:1 (substance : cellulose)
Test Run |
Weighed Portion | Ignition Energy | t20-80 |
BR20 -80 | |
| Substance | Cellulose | ||||
| 1 | 15 g | 15 g | 153 W | 153 s* | 0.06 g/s |
| 2 | 15 g | 15 g | 153 W | 183 s* | 0.05 g/s |
| 3 | 15 g | 15 g | 153 W | 191 s* | 0.05 g/s |
| 4 | 15 g | 15 g | 153 W | 179 s* | 0.05 g/s |
| 5 | 15 g | 15 g | 153 W | 191 s* | 0.05 g/s |
| * burning time > 300 s | Arithmetic mean: | 0.05 g/s | |||
Mixture 4:1 (substance : cellulose)
Test Run |
Weighed Portion | Ignition Energy | t20-80 |
BR20 -80 | |
| Substance | Cellulose | ||||
| 1 | 24 g | 6 g | 153 W | 146 s* | 0.02 g/s |
| 2 | 24 g | 6 g | 153 W | 139 s* | 0.03 g/s |
| 3 | 24 g | 6 g | 153 W | 129 s* | 0.03 g/s |
| 4 | 24 g | 6 g | 153 W | 146 s* | 0.02 g/s |
| 5 | 24 g | 6 g | 153 W | 146 s* | 0.02 g/s |
| * burning time > 300 s | Arithmetic mean: | 0.02 g/s | |||
Mean values of the reference mixtures:
Mixture 3:1 (calcium peroxide : cellulose) BR20-80mean: 1.13 g/s
Mixture 1:1 (calcium peroxide : cellulose) BR20-80mean: 0.62 g/s
Mixture 1:2 (calcium peroxide : cellulose) BR20-80mean: 0.21 g/s
The burning rate of the substance is significantly below the burning rate of reference mixture.
RFR 6634 has no oxidizing properties when tested according to UN-MTC Procedure O.3.
Description of key information
RFR 6634 is hygroscopic. The test substance was taken from the sample container in a nitrogen atmosphere.
The test was performed as stipulated in UN-MTC Procedure O.3 ‘Gravimetric test for oxidizing solids'.
The substance in its delivery state was measured. The solid was mixed in a 1:1 and 4:1 ratio, by mass, with fibrous cellulose. Separate aliquots of 30 ± 0.1 g of each mixture were formed into method given conical piles and ignited by means of an electrically-heated ignition wire.
The burning rate (BR) depends on the burning intensity and the amount of cellulose in the mixture. Therefore it is defined as the quotient of 60 % of the total amount of cellulose in the conical pile and the main combustion time t20-80. The time t20-80is the time between 20 % and 80 % of the total mass loss. The total mass loss is the difference in mass before ignition and at the end of the main reaction, which is defined as a rate of mass loss less than 1 g per minute.
Detailed results:
Mixture 1:1 (substance : cellulose)
Test Run |
Weighed Portion | Ignition Energy | t20-80 |
BR20 -80 | |
| Substance | Cellulose | ||||
| 1 | 15 g | 15 g | 153 W | 153 s* | 0.06 g/s |
| 2 | 15 g | 15 g | 153 W | 183 s* | 0.05 g/s |
| 3 | 15 g | 15 g | 153 W | 191 s* | 0.05 g/s |
| 4 | 15 g | 15 g | 153 W | 179 s* | 0.05 g/s |
| 5 | 15 g | 15 g | 153 W | 191 s* | 0.05 g/s |
| * burning time > 300 s | Arithmetic mean: | 0.05 g/s | |||
Mixture 4:1 (substance : cellulose)
Test Run |
Weighed Portion | Ignition Energy | t20-80 |
BR20 -80 | |
| Substance | Cellulose | ||||
| 1 | 24 g | 6 g | 153 W | 146 s* | 0.02 g/s |
| 2 | 24 g | 6 g | 153 W | 139 s* | 0.03 g/s |
| 3 | 24 g | 6 g | 153 W | 129 s* | 0.03 g/s |
| 4 | 24 g | 6 g | 153 W | 146 s* | 0.02 g/s |
| 5 | 24 g | 6 g | 153 W | 146 s* | 0.02 g/s |
| * burning time > 300 s | Arithmetic mean: | 0.02 g/s | |||
Mean values of the reference mixtures:
Mixture 3:1 (calcium peroxide : cellulose) BR20-80mean: 1.13 g/s
Mixture 1:1 (calcium peroxide : cellulose) BR20-80mean: 0.62 g/s
Mixture 1:2 (calcium peroxide : cellulose) BR20-80mean: 0.21 g/s
The burning rate of the substance is significantly below the burning rate of reference mixture.
RFR 6634 has no oxidizing properties when tested according to UN-MTC Procedure O.3.
Key value for chemical safety assessment
- Oxidising properties:
- non oxidising
Additional information
Justification for classification or non-classification
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