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EC number: 241-620-3 | CAS number: 17636-10-1
- 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

Stability: thermal, sunlight, metals
Administrative data
- Endpoint:
- stability: thermal, sunlight, metals, other
- Remarks:
- Migrated from section 'Stability: thermal, sunlight, metals'
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2005-07-22 - 2005-10-17
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: No data on GLP-status, according to Pensky Martens method (DIN 51 758)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 005
- Report date:
- 2005
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Differential scanning calorimetry (DSC)
Investigations by DSC and differential scanning calorimetry (DSC) provide information on the thermal behavior of materials.
Sample quantities of a few milligrams are used. The sample and a thermally neutral behaving reference substance are heated in an oven at a constant heating rate, and the temperatur is measured in two containers. An ideal thermal symmetry of the sample and reference substance (ie same heat capacity, same heat transfer to the surroundings) is characterized by both substances beeing equally rapidly heated and the temperature difference is equal to zero. If heat is consumed by a reaction or a physical process, ie. as a phase transition in the sample heat (endothermic) is used or released (exothermic), then temperature differences appear between sample and reference, which characterize the current operation.
In the DSC diagram of the heat flow of the sample is shown related to the oven temperature. By integrating this curve the amount of heat releases or consumed in the thermal event is calculated.
This method is used mainly for investigations of the thermal stability of samples as a screening method for determining the temperature at which the onset of decomposition can be detected (onset temperature) and used to determine the heats of decomposition. - GLP compliance:
- no
Test material
- Reference substance name:
- Sodium 3-mercaptopropanesulphonate
- EC Number:
- 241-620-3
- EC Name:
- Sodium 3-mercaptopropanesulphonate
- Cas Number:
- 17636-10-1
- Molecular formula:
- C3H8O3S2.Na
- IUPAC Name:
- sodium 3-sulfanylpropane-1-sulfonate
- Details on test material:
- - Name of test material (as cited in study report): 3-mercaptopropanesulfonsaures Natrium
- Substance type: organic salt
- Physical state: solid, white powder
Constituent 1
Results and discussion
For thermal stability study
- Test substance thermally stable:
- no
Operating temperature
- Operating temp.:
- > 15 - 430 °C
- Remarks on result:
- other: Weak exothermic reaction at T>250 °C after an endothermic event. Temperature range of the endothermic event was 216 - 238 and 240-250°C. The enthalpie measured for the events were 33 or 59 J/g, respectively. The second signal was very weak.
- Sublimation:
- no
- Transformation products:
- not measured
Any other information on results incl. tables
Applicant's summary and conclusion
- Conclusions:
- A transition from the melting into decomposition was observed in MPS. The melting temperature is above 200 °C. If, on the substance starts to melt and to decompose, MPS has a relatively low heat release (up to -59 J/g).
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