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EC number: 944-232-9 | CAS number: -
- 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:
- July 20, 2015 - August 05, 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:
- not specified
- GLP compliance:
- no
- Contact with:
- powdered cellulose
- Key result
- Sample tested:
- test mixture as specified
- Parameter:
- maximum burning rate
- Result:
- 1.01 mm/s
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The maximum burning rate of the mixtures of the test item and cellulose (1.01 mm/s) was less than the maximum burning rate of the reference mixture of cellulose and barium nitrate (1.20 mm/s). Due to the fact that the mixture of the test item with cellulose burned slower compared to the reference mixture it was concluded that the test item has no oxidizing properties.The test item had no oxidizing properties in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.17.
- Executive summary:
Study performed in accordance with EU Method A.17 (Oxidising Properties (Solids)).
A preliminary test is carried out in the interest of safety. The preliminary test will be sufficient when it clearly indicates that the test item or the preparation has oxidizing properties. If this is not the case, the substance or preparation is subject to the full main test.
In the main test, the test item and a defined combustible substance (both sieved to < 0.125 mm and dried) will be mixed in various ratios. Each mixture is then formed into a pile and the pile is ignited at one end. The maximum burning rate determined is compared with the maximum burning rate of the reference mixture.
Mixtures of oxidizers with cellulose must be treated as potentially explosive and handled with care.
Preliminary test
The dried test item is mixed with the dried cellulose in the proportions 2 of the test item to 1 of cellulose by weight and the mixture is formed into a small cone shaped pile of dimensions 3.5 cm (diameter of base) x 2.5 cm (height) by filling, without tamping, a cone-shaped glass. The pile is placed on a non-combustible and non-porous plate. As ignition source a flame is used to ignite the pile. The vigour and duration of the resultant reaction is observed and recorded.
The test result is compared with this of a mixture of barium nitrate/cellulose 2:1.
The test item is to be considered as oxidizing if the reaction is vigorous. In this case no further testing is required. When this is not the case, the substance should then be subject to the main test.
Main test
Mixtures of oxidizer/cellulose are prepared in 10 wt. % increments. For borderline cases, intermediate oxidizer/cellulose-mixtures are used to obtain the maximum burning rate more precisely. The pile is formed by means of a mould. The mould is made of metal, has a length of 250 mm and a triangular cross-section with an inner height of 10 mm and an inner width of 20 mm. On both sides of the mould, in longitudinal direction, two metal sheets are mounted as lateral limitations which overlook 2 mm the upper edge of the triangular cross-section. This arrangement is loosely filled with mixture in a slight excess. After dropping the mould from a height of 2 cm on to a solid surface, the remaining excess test item is scraped off with an oblique positioned sheet. Then the lateral limitations are removed and the remaining powder is smoothed. A non-combustible plate is then placed on the top of the mould, the apparatus is inverted and the mould removed. The flame of a gas burner is used as ignition source. The time of reaction over 200 mm after the reaction zone has propagated an initial distance of 30 mm is measured. First the test is performed with the reference substance. The test is then carried out at least once with each one of the range of mixtures of the test item with cellulose. If the burning rate of a given mixture is found significantly greater than that of the reference mixture, the test can be stopped. Otherwise, the test has to be repeated five times more with the three mixtures having shown the highest burning rate. In case of a positive result additional tests of the reference substance and of the test item in mixture with kieselguhr are performed as well as experiments under an inert atmosphere (Argon). For safety reasons the maximum burning rate - not the mean value - shall be considered to be the characteristic oxidizing property of the test item.
Results
Grinding, sieving and drying f the test item, barium nitrate and cellulose.
The cellulose was dried by treating the sample at 105 °C ± 5 °C until the weight was constant. Due to the particle size of the cellulose grinding and sieving was not necessary. The barium nitrate was grounded with a mill, sieved< 0.12 mm and dried by treating the sample at 105 °C ± 5 °C until the weight was constant. The test item was grounded with a mortar, sieved <125 µm and dried by treating the sample at 50 °C ± 5 °C under vacuum until the weight was constant.
Preliminary test
Three test mixtures with the test item and cellulose 2:1 showed a short flame with discolouring of the surface of the mixture. The mixtures burned for 5 s, 7 s and 7 s, respectively. The flames extinguished before the pile was completely consumed. Three test mixtures with barium nitrate/cellulose 2:1 burned down completely in 57 s, 57 s and 58 s, respectively. Due to the results of the preliminary test the main test had to be performed.
Main test
Four tests were performed for the reference mixture (barium nitrate and cellulose) with 50, 55, 60 and 70 wt. %oxidizer (barium nitrate).
The highest burning rate of 1.46 mm/s was found for the mixture with 55 wt. % oxidizer.
Mixtures of the test item with cellulose were prepared in between 10 and 90 wt. % of the test item and tested. An additional test with 15 % was performed.
Due to the fact that the maximum burning rate of the mixtures of the test item with cellulose is lower than the maximum burning rate of the reference mixture, six tests were performed only with the three mixtures with the highest burning rates of 10, 15 and 20 wt.% of test item to verify these values.
The maximum burning rate of the mixtures of the test item and cellulose (1.01 mm/s) was less than the maximum burning rate of the reference mixture of cellulose and barium nitrate (1.20 mm/s). Due to the fact that the mixture of the test item with cellulose burned slower compared to the reference mixture it was concluded that the test item has no oxidizing properties.
The test item had no oxidizing properties in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.17.
Reference
Results
Grinding, sieving and drying of the test item, barium nitrate and cellulose.
The cellulose was dried by treating the sample at 105 °C ± 5 °C until the weight was constant. Due to the particle size of the cellulose grinding and sieving was not necessary. The barium nitrate was grounded with a mill, sieved< 0.12 mmand dried by treating the sample at 105 °C ± 5 °C until the weight was constant. The test item was grounded with a mortar, sieved <125 µm and dried by treating the sample at 50 °C ± 5 °C under vacuum until the weight was constant.
Preliminary test
Three test mixtures with the test item and cellulose 2:1 showed a short flame with discoloring of the surface of the mixture. The mixtures burned for 5 s, 7 s and 7 s, respectively. The flames extinguished before the pile was completely consumed. Three test mixtures with barium nitrate/cellulose 2:1 burned down completely in 57 s, 57 s and 58 s, respectively. Due to the results of the preliminary test the main test had to be performed.
Main test
Four tests were performed for the reference mixture (barium nitrate and cellulose) with 50, 55, 60 and 70 wt. %oxidizer (barium nitrate). The results are shown in Table1.
Table1: Burning times and rates of reference mixtures
Barium nitrate [wt.%] |
Burning time over 200 mm [s] |
Burning rate [mm/s] |
50 |
144 |
1.39 |
55 |
137 |
1.46 |
60 |
144 |
1.39 |
70 |
167 |
1.20 |
The highest burning rate of 1.46 mm/s was found for the mixture with 55 wt. % oxidizer.
Mixtures of the test item with cellulose were prepared in between 10 and 90 wt. % of the test item and tested. An additional test with 15 % was performed. Table2 shows the results.
Table2: Burning times and rates of test item mixtures
Test item[%] |
Burning time over 200 mm [s] |
Burning rate [mm/s] |
10 |
213 |
0.94 |
15 |
238 |
0.84 |
20 |
260 |
0.77 |
30 |
336 (¼ of zone with burning, ¾ of zone with flame shortly before extinguishing) |
- |
40 |
Flame extinguished in starting zone |
- |
60 |
The test item could not be ignited |
- |
90 |
The test item could not be ignited |
- |
Due to the fact that the maximum burning rate of the mixtures of the test item with cellulose is lower than the maximum burning rate of the reference mixture, six tests were performed only with the three mixtures with the highest burning rates of 10, 15 and 20 wt.% of test item to verify these values (seeTable3)
Table3: Burning times and rates of the fastest test item mixtures
Test: |
t [s] |
V[mm/s] |
t [s] |
V[mm/s] |
t [s] |
V[mm/s] |
t [s] |
V[mm/s] |
t [s] |
V[mm/s] |
t [s] |
V[mm/s] |
10 % |
231 |
0.94 |
206 |
0.97 |
208 |
0.96 |
199 |
1.01 |
203 |
0.99 |
199 |
1.01 |
15 % |
238 |
0.84 |
228 |
0.88 |
226 |
0.89 |
230 |
0.87 |
223 |
0.90 |
232 |
0.86 |
20 % |
260 |
0.77 |
250 |
0.80 |
255 |
0.78 |
245 |
0.82 |
258 |
0.78 |
250 |
0.80 |
The maximum burning rate of the mixtures of the test item and cellulose (1.01 mm/s) was less than the maximum burning rate of the reference mixture of cellulose and barium nitrate (1.20 mm/s). Due to the fact that the mixture of the test item with cellulose burned slower compared to the reference mixtureit was concluded that the test item has no oxidizing properties.
Description of key information
Key value determined in a laboratory study performed in accordance with EU Method A.17 (Oxidising Properties (Solids)).
According to this study, the test item has no oxidising properties.
Key value for chemical safety assessment
- Oxidising properties:
- non oxidising
Additional information
Study performed in accordance with EU Method A.17 (Oxidising Properties (Solids)).
The maximum burning rate of the mixtures of the test item and cellulose (1.01 mm/s) was less than the maximum burning rate of the reference mixture of cellulose and barium nitrate (1.20 mm/s). Due to the fact that the mixture of the test item with cellulose burned slower compared to the reference mixture it was concluded that the test item has no oxidising properties.
Justification for classification or non-classification
The test substance is not classified as oxidising in accordance with the CLP regulation.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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