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EC number: 617-084-5 | CAS number: 80474-45-9
- 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

Oxidising properties
Administrative data
Link to relevant study record(s)
- Endpoint:
- oxidising solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 23rd March 2015 - 27th March 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.17 (Oxidising Properties (Solids))
- Deviations:
- no
- GLP compliance:
- yes
- Contact with:
- powdered cellulose
- Key result
- Sample tested:
- other: Reference: 2:1 Cellulose
- Parameter:
- burning time of reaction over a distance of 200 mm
- Result:
- ca. 32 s
- Key result
- Sample tested:
- other: Test sample: 2:1 Cellulose
- Parameter:
- burning time of reaction over a distance of 200 mm
- Result:
- ca. 47 s
- Interpretation of results:
- GHS criteria not met
- Remarks:
- The sample of Thio-Acid Propionate should be classed as "Not an oxidising solid"
- Conclusions:
- The sample of Thio-Acid Propionate should be classed as ‘Not an oxidising solid’.
- Executive summary:
It was noted that the rate of burning propagation increased as the sample became more concentrated, this suggested that the sample may be flammable and thus may give rise to a false positive for oxidising properties.
The preliminary test was re-run using an inert substance (diatomaceous earth) in place of cellulose in accordance with the test standard. It was found that the burning rate was slightly faster when using an inert material, and therefore confirmed that the initial preliminary result and subsequent train test results are a false positive.
This was supported also by additional information supplied by the client. Previous Flammability of Solids testing conducted by the client on Thio-Acid Propionate provided burning times of between 57 to 79 seconds over a 100 mm distance (burning rate = 1.3 - 1.8 mm.s-1 ).
Therefore the sample of Thio-Acid Propionate should be classed as ‘Not an oxidising solid’.
Reference
Preliminary Screening Test:
Composition of 2:1 Ratio | Mass of material (g) | Type of reaction | Burning time (sec) | Comments on burning behaviour |
Reference sample | 4 | Vigorous | 32 | Sample completely Cellulose 2 finished burning at 48 s |
Cellulose | 2 | Vigorous | 32 | Sample completely Cellulose 2 finished burning at 48 s |
Test sample | 4 | Moderate | 47 | Sample completely Cellulose 2 finished burning at 156 s |
Cellulose | 2 | Moderate | 47 | Sample completely Cellulose 2 finished burning at 156 s |
Full Train Test – For Reference Material with Cellulose:
Concentration (%) | 50 | 60 | 70 | 80 | 90 | Max Burning mixture (%) | Maximum Burning rate (mm/s) |
Mass of Reference (g) | 6 | 9 | 14 | 16 | N/A | 60 | 1.7 |
Mass of Cellulose (g) | 6 | 6 | 6 | 4 | N/A | 60 | 1.7 |
Burning time (s) | 153 | 118 | 205 | 345 | N/A | 60 | 1.7 |
Burning rate <mm/s) | 1.3 | 1.7 | 1.0 | 0.6 | - | 60 | 1.7 |
Train Test - For Thio-Acid Propionate:
Concentration (%) | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 |
Mass of Sample (g) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
Mass of cellulose (g) | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
Burning time over 200mm (sec) | 185 | 177 | 171 | 151 | 139 | 140 | 136 | 114 | 113 |
Burning rate (mm/s) | 1.1 | 1.1 | 1.2 | 1.3 | 1.4 | 1.4 | 1.5 | 1.8 | 1.8 |
Note 1: If any of these mixtures exceeds or equals the burning rate of the reference standard, the sample is considered an oxidiser and the test is complete. Otherwise repeat the test five times with each of the three concentrations that show the fastest burning rate.
Note : Maximum burning rate for Thio-Acid Propionate : 1.8 mm.s-1
Description of key information
It was noted that the rate of burning propagation increased as the sample became more concentrated, this suggested that the sample may be flammable and thus may give rise to a false positive for oxidising properties.
The preliminary test was re-run using an inert substance (diatomaceous earth) in place of cellulose in accordance with the test standard. It was found that the burning rate was slightly faster when using an inert material, and therefore confirmed that the initial preliminary result and subsequent train test results are a false positive.
This was supported also by additional information supplied by the client. Previous Flammability of Solids testing conducted by the client on Thio-Acid Propionate provided burning times of between 57 to 79 seconds over a 100 mm distance (burning rate = 1.3 - 1.8 mm.s-1 ).
Therefore the sample of Thio-Acid Propionate should be classed as ‘Not an oxidising solid’.
Key value for chemical safety assessment
- Oxidising properties:
- non oxidising
Additional information
Justification for classification or non-classification
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