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EC number: 231-890-0 | CAS number: 7775-14-6
- 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

Explosiveness
Administrative data
Link to relevant study record(s)
- Endpoint:
- explosive properties of explosives
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2010-07-14 to 2010-07-23
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.14 (Explosive properties)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Recommandations on the Transport of Dangerous Goods: Manual of tests and Criteria, 4th edition, New York and Geneva, 2003: Class 1, Test series: 1(b)/2(b), 3(a) (ii) and 3(b) (i)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 113 (1981) Screening test for thermal stability and stability in air
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Parameter:
- sensitiveness to impact: impact energy (J)
- Remarks on result:
- negative (not further specified)
- Parameter:
- sensitiveness to friction: friction load (N)
- Remarks on result:
- negative (not further specified)
- Parameter:
- other: Explosive (not specified)
- Remarks on result:
- negative (not further specified)
- Remarks:
- No explosion was observed.
- Interpretation of results:
- non explosive
- Conclusions:
- The decomposition energy of sodium dithionite in the DSC was > 500 J/g, therefore the main test had to be performed.
The test item has no explosive properties according to EC 440/2008, Part a, A.14..
Reference
The test item contains a residual moisture of 0.2 wt-% which was determined by drying the test item under reduced pressure (approximately 100 mbar) at a temperature of 50 °C.
Thermal stability:
The decomposition energy of sodium dithionite in the DSC was > 500 J/g, therefore the main test had to be performed.
Explosive properties
Mechanical sensitivity: Friction
No explosion was observed within 6 tests using a 360 N loading.
Mechanical sensitivity: Impact
No explosion was observed within 6 testsdropping the 10 kg mass from 0.40 m (40 J).
Thermal sensitivity: Koenen-Test
Due to the fact that the test series with a 2.0 mm diameter orifice plate showed no explosion, the fact that the area of a 6.0 mm orifice is an order of magnitude higher and the physical state of the test item (solid) which excludes an enrichment of test item due to the evaporation of solvent an explosion can also be excluded for the 6.0 mm diameter orifice plate.
Description of key information
Explosive properties of sodium dithionite (experimental results, according to EC 440/2008, Part A, A.14): non explosive substance
Key value for chemical safety assessment
- Explosiveness:
- non explosive
Additional information
For evaluation of this endpoint, data from an experimental study are used as key information. The study was conducted according to GLP and according to EU method A.14. Therefore, the test data are reliable without restrictions.
The decomposition energy of sodium dithionite in the DSC analysis was > 500 J/g, therefore the main test had to be performed. Results from the main test indicate that the test item has no explosive properties according to EC 440/2008, Part a, A.14..
Justification for classification or non-classification
The test item had no explosive properties according to EC 440/2008, Part A, A.14. Therefore the substance does not require classification as explosive according to Regulation (EC) No 1272/2008.
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