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EC number: 208-142-7 | CAS number: 512-42-5
- 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Sodium methyl sulphate
- EC Number:
- 208-142-7
- EC Name:
- Sodium methyl sulphate
- Cas Number:
- 512-42-5
- Molecular formula:
- CH4O4S.Na
- IUPAC Name:
- sodium methyl sulphate
- Details on test material:
- TS-Freetext:
Sodium methyl sulphate
CAS: 512-42-5
Constituent 1
- Specific details on test material used for the study:
- Purity of the test item: 99.9 %
Batch: KIRSCHAZ2-00182
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- >= 206 - <= 210 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
Any other information on results incl. tables
Results:
The test item had a melting range starting at 206 °C and ranging up to 210 °C with two pronounced peaks at 207 °C and 209 °C.
Observed thermic procecess:
In the first tests, an endothermal range was found between about RT and about 110 °C
with a distinct maximum at 90 °C. This is due to evaporation of water and is confirmed by the weight loss of 7.6 % after Test 1 and the
weight loss in the TG/DSC-Test of 5.2 % at 96 °C. An additional measurement in a sealed pan to avoid loss of volatiles led to a
sharp endothermal peak at 88 °C, which can be explained by the melting of a hydrate and is an explanation of the maximum in Test 1.
Between about 160 °C and 180 °C, another small endothermal region was found with a rather noisy signal. The additional weight loss
of about 0.2 % (Test 3) speaks for the evaporation of rather strongly bound water.
Therefore, to measure the melting of the dry test item, it was heated first up to 190 °C to evaporate all water, cooled down and then measured.
In these measurements (determination A and B) only a narrow endothermal range between 206 °C and 210 °C was detected with distinct
peaks at 207 °C and 209 °C. That this was the melting of the dry test item is supported by the observation, that e.g. after determination
A (maximum temperature 230 °C) or Test 5 (maximum temperature 215 °C) the test item partly leaked from the crucible.
In order to survey the thermic behavior of the test item a preliminary TG/DSC-Test (non-GLP) was run up to 600 °C.
A decreasing TG-signal starting directly after the melting with a weight loss of about 50 % at 530 °C showed the decomposition of the test item.
Applicant's summary and conclusion
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