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EC number: 220-778-7 | CAS number: 2896-70-0
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- October 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: UN Manual of Tests and Criteria, ST/SG/AC. 10/11/Rev.5
- Version / remarks:
- 2009
- Deviations:
- no
- GLP compliance:
- no
- Remarks on result:
- other: Detonation (Test Series A): BAM 50/60 Steel Tube Test (Test A.1)
- Remarks:
- No detonation - Fragmentation length shorter than 1.5 times comparative length, i.e. < 18.75 cm.
- Remarks on result:
- other: Deflagration (Test Series C): Time / Pressure Test (Test C.1).
- Remarks:
- “No” (Gauge pressure 2070 kPa not achieved).
- Remarks on result:
- other: Deflagration Test (Test C.2).
- Remarks:
- “No deflagration” was detected.
- Remarks on result:
- other: Heating Under Defined Confinement: Koenen Test (E.1)
- Remarks:
- Tubes unchanged: Concluding result “no”.
- Remarks on result:
- other: Heating Under Defined Confinement: Dutch Pressure Vessel Test (E.2)
- Remarks:
- The limiting diameter is < 1.0 mm.
- Remarks on result:
- other: Test on Explosion Power, BAM Trauzl Test (Test F.3)
- Remarks:
- The sample has no explosive power.
- Remarks on result:
- other: Performance of the SADT Test
- Remarks:
- The SADT of the test material is ≥ 60 °C.
- Conclusions:
- Under the conditions of the study, the test material is not considered as a self-reactive substance of transport class 4.1.
- Executive summary:
In order to check whether the test material fulfils the criteria to be classified in Division 4.1 (self-reactive substances) the prescribed tests according to the flow-chart scheme for self-reactive substances (UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, CT/SG/AC.10/11/Rev. 5, 2009, section 20, fig. 20.1 a/b) were performed.
The BAM 50/60 steel tube test (Test A.1) resulted in no detonation - Fragmentation length was shorter than 1.5 times comparative length, i.e. < 18.75 cm.
The deflagration (Test Series C) time / pressure test (Test C.1) showed that in none of the three trials a pressure rise to 2070 kPa above atmospheric pressure was achieved. The evaluation was “No” (Gauge pressure 2070 kPa not achieved).
Deflagration test (Test C.2) showed the substance could not be ignited within 5 minutes during application of a gas burner flame. Thus, “no deflagration” was detected.
In the heating under defined confinement: Koenen Test (E.1) it was found that the limiting diameter is less than 1.0 mm and the effect in all tests was type “O” tubes unchanged”. Concluding result: “No”.
In the heating under defined confinement test using the Dutch Pressure Vessel Test (E.2) the limiting diameter is < 1.0 mm. Concluding result: “No”.
Test on explosion power using the BAM Trauzl Test (Test F.3) showed that in both cases the volume of expansion of the lead block was less than 10 cm^3 per 10 g sample. Therefore it can be stated that the sample has no explosive power.
These measurements led to “Exit G” (material should be considered for exemption).
The SADT test (representing a 50 kg transport package) was ≥ 60 °C.
Under the conditions of the study, the test material is not considered as a self-reactive substance of the transport class 4.1.
Reference
Detonation (Test Series A): BAM 50/60 Steel Tube Test (Test A.1).
Sample conditions: Ambient temperature (12 – 14 °C)
Fragmentation length: 12.3 cm / 12.7 cm
Comparative fragmentation length with an inert substance (water) 12.5 cm.
Result: No detonation - Fragmentation length shorter than 1.5 times comparative length, i.e. < 18.75 cm.
Deflagration (Test Series C): Time / Pressure Test (Test C.1).
Sample conditions: Ambient temperature (16 – 18 °C).
The sample was investigated at ambient temperature.
Trial 1: Maximum pressure 560 kPa.
Trial 2: Maximum pressure 452 kPa.
Trial 3: Maximum pressure 473 kPa.
In none of the three trials a pressure rise to 2070 kPa above atmospheric pressure was achieved.
Evaluation: “No” (Gauge pressure 2070 kPa not achieved).
Deflagration Method 2: Deflagration Test (Test C.2).
Sample masses: 254 g / 256 g.
Sample conditions: 50 °C
The substance could not be ignited within 5 minutes during application of a gas burner flame.
Thus, “no deflagration” was detected.
Conclusion on Propagation of Deflagration
According to the results of the tests C1 and C2 the test material is not able to propagate a deflagration. The answer is “no” if the deflagration test (C.2) result is “no” and the time/pressure test (C.1) result is not “yes rapidly” according to the UN Manual of Tests and Criteria, Section 23, point 23.2.2.
Heating Under Defined Confinement: Koenen Test (E.1)
Sample mass: 27.3 g
Orifice diameter 20.0 mm: Tube unchanged / No explosion.
Orifice diameter 12.0 mm: Tube unchanged / No explosion.
Orifice diameter 8.0 mm: Tube unchanged / No explosion.
Orifice diameter 5.0 mm: Tube unchanged / No explosion.
Orifice diameter 3.0 mm: Tube unchanged / No explosion.
Orifice diameter 2.0 mm: Tube unchanged / No explosion.
Orifice diameter 1.5.0 mm: Tube unchanged / No explosion.
Orifice diameter 1.0 mm: Tube unchanged / No explosion.
Orifice diameter 1.0 mm: Tube unchanged / No explosion.
Orifice diameter 1.0 mm: Tube unchanged / No explosion.
Limiting diameter: < 1.0 mm
It was found that the limiting diameter is less than 1.0 mm and the effect in all tests was type “O” (tubes unchanged).
Concluding result: “No”.
Heating Under Defined Confinement: Dutch Pressure Vessel Test (E.2)
Sample Mass |
Orifice Diameter |
Effect / Assessment (+ Rupture, - No rupture) |
10 g |
16.0 mm |
No rupture / - |
10 g |
6.0 mm |
No rupture / - |
10 g |
2.0 mm |
No rupture / - |
10 g |
1.0 mm |
No rupture / - |
50 g |
1.0 mm |
No rupture / - |
50 g |
1.0 mm |
No rupture / - |
50 g |
1.0 mm |
No rupture / - |
The limiting diameter is < 1.0 mm.
Concluding result: “No”.
Concluding Result of the Effect of Heating Under Defined Confinement
According to the results of the tests E.1 and E.2 the concluding assessment of the effect under defined confinement is: “No”.
Test on Explosion Power, BAM Trauzl Test (Test F.3)
The results of two trials (sample masses: 10.7 g test 1 and 10.6 g test 2) are:
Test 1: 6.4 cm^3 expansion per 10 g sample.
Test 2: 6.4 cm^3 expansion per 10 g sample.
In both cases the volume of expansion of the lead block was less than 10 cm^3 per 10 g sample. Therefore it can be stated that the sample has no explosive power.
The assessment result: “No”.
The question “what is the effect of heating it under confinement” led to the answer “No”. Therefore Exit G had to be selected.
Concluding Result of the Flow Chart Testing.
With reference to all test results “Exit G” (should be considered for exemption) was reached in the flow-chart scheme. According to the classification procedure for self-reactive substances (point 20.4.2 “g”) the sample should be exempted from classification as a self-reactive substance of Division 4.1 provided that the formulation in thermally stable (self-accelerating decomposition temperature 60 °C to 75 °C for a 50 kg package) and any diluent meets the requirements of paragraph 2.4.2.3.5 of the Model Regulations (defined as self-reactive substance type G ,exit box G of figure 20.1).
Therefore the last and final step was the executing of an UN H.4 SADT-test.
SADT Test for Organic Peroxides of Div. 5.2 and self-reactive substances of Div. 4.1 (UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, ST/SG/AC.10/11/Rev. 5, New York and Geneva, 2009, Section 28.4.4, Test H4, Heat Accumulation Storage Test).
At the ambient temperature of 55 °C, the sample showed stability in the Dewar Vessel. Within the testing time period of Seven days (noted from the point when the sample reaches a temperature 2 K below the ambient temperature, i.e. 53 °C), the sample temperature did not exceed a temperature 6 K above the test chamber temperature, i.e. 61 °C (maximum temperature 58.2 °C).
According to the UN Test Manual, the H.4 SADT test is performed in steps of 5 °C. As the SADT is defined as the lowest ambient temperature at which instability is detected, the SADT of the sample tested is at least 5 K higher than 55 °C (which means 60 °C).
Therefore the SADT of the test material is ≥ 60 °C.
Concluding Assessment of all Test Results
The measurements according to the flow scheme (UN Manual of Tests and Criteria figure 20.1 a/b) led to “Exit G” (material should be considered for exemption).
The SADT test (representing a 50 kg transport package) was ≥ 60 °C.
Therefore it can be stated that the sample of the test material has not to be considered as a material of the transport class 4.1 “self-reactive substances".
Description of key information
Autoflammabilty testing on 4-Oxo Tempo results in negative results for all tests (Habrich, J. 2014, report A140003711).
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 60 °C
Additional information
To identify whether the test material fulfils the criteria to be classified in Division 4.1 (self-reactive substances) the prescribed tests according to the flow-chart scheme for self-reactive substances (UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, CT/SG/AC.10/11/Rev. 5, 2009, section 20, fig. 20.1 a/b) were performed (Habrich, J. 2014).
The BAM 50/60 steel tube test (Test A.1) resulted in no detonation - Fragmentation length was shorter than 1.5 times comparative length, i.e. < 18.75 cm.
The deflagration (Test Series C) time / pressure test (Test C.1) showed that in none of the three trials a pressure rise to 2070 kPa above atmospheric pressure was achieved. The evaluation was“No”(Gauge pressure 2070 kPa not achieved).
Deflagration test (Test C.2) showed the substance could not be ignited within 5 minutes during
application of a gas burner flame. Thus,“no deflagration”was detected.
In the heating under defined confinement: Koenen Test (E.1) it was found that the limiting diameter is less than 1.0 mm and the effect in all tests was type“O”tubes unchanged. Concluding result:“No.
In the heating under defined confinement test using the Dutch Pressure Vessel Test (E.2) the limiting
diameter is < 1.0 mm. Concluding result:“No”.
Test on explosion power using the BAM Trauzl Test (Test F.3) showed that in both cases the volume
of expansion of the lead block was less than 10 cm^3 per 10 g sample. Therefore, it can be stated that the sample has no explosive power.
These measurements led to“Exit G”(material should be considered for exemption).
The SADT test (representing a 50 kg transport package) was≥60°C.
Under the conditions of the study, the test material is not considered as a self-reactive substance of the transport class 4.1.
Additional supporting data is available in the form of adiabatic calorimetry on the Oxo Tempo concentrate (Tee, Waldram, 1999), tests for determination of transport classification of the formulated product (Brown, Fletcher, 1999) and Differential Scanning Calorimetry on formulated Oxo Tempo (McIntosh, Tee, 1999). Althou8gh providing useful information regarding the safe handling of the substance, the Habrich 2014 study is the only available guideline study. As a result, this study was taken as the key study and classification of the substance is based solely on the outcome of this study.
According to the flow scheme (UN Manual of Tests and Criteria figure 20.1 a/b) the Habrich study results lead to“Exit G”(material should be considered for exemption). Oxo Tempo is not considered as a self-reactive substance of transport class 4.1.
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