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Diss Factsheets
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EC number: 212-800-9 | CAS number: 870-72-4
- 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
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 18 to 25 Sep 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Cross-reference
- Reason / purpose for cross-reference:
- reference to other study
Reference
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 18 to 25 Sep 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- 27th July 1995
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Remarks:
- confirmed by means of TGA
- Boiling pt.:
- >= 192 °C
- Atm. press.:
- 1 007 mBar
- Decomposition:
- ambiguous
- Decomp. temp.:
- >= 192 °C
The test item shows a boiling and/or thermal decomposition earliest at approx. 192 °C (at 1007 mBar) according to the definition in the OECD guideline 103.
192 °C (from first measurement)
191°C (from second measurement)
192 °C (from third measurement)
From 192 °C the test item shows a boiling and/or thermal decomposition with evaporation of the decomposition components.
The DSC measurements were confirmed by means of TGA measurements under the same measuring conditions.
The start of the area of boiling temperatures is defined by using the on-set temperature.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 27th July 1995
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Sodium hydroxymethanesulphonate
- EC Number:
- 212-800-9
- EC Name:
- Sodium hydroxymethanesulphonate
- Cas Number:
- 870-72-4
- Molecular formula:
- CH3O4S.Na
- IUPAC Name:
- sodium hydroxymethanesulfonate
Constituent 1
Results and discussion
Melting / freezing point
- Decomposition:
- ambiguous
- Decomp. temp.:
- >= 184 °C
- Remarks on result:
- not determinable
Any other information on results incl. tables
The test item shows no melting of the main component up to 184 °C, according to the definition in the OECD Guideline 102 (mean value from repeat determination).
185 °C (from first measurement)
184 °C (from second measurement)
184 °C (from third measurement)
From 184 °C the test item shows an endothermic effect (decomposition presumably - a melting > 184 °C can't be excluded).
The possible decomposition temperatures according to
- the melting results (184 °C)
- the boiling results (192 °C - see section 4.3)
differ due to different measuring conditions (melting - capsulated crucible / boiling- partially capsulated).
The cooling runs do not show a crystallization of the main component.
At approximately 49 °C the test item shows an endothermic effect. This effect is possibly melting of a part component and / or a solid-solid phase transformation.
In the temperature range between about 82 °C and 94 °C the test item shows a further endothermic effect. This effect is possibly melting of a part component, evaporating of a part component and / or a solid to solid phase transformation.
These effects do not correlate with the melting of the test item (main component) which was verified by subsequent tests with the Kofler-heating bank.
Applicant's summary and conclusion
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.