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EC number: 253-523-3 | CAS number: 37482-11-4
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
No experimental data on any of the environmental endpoints is available for sodium 2 -mercaptoethanolate. The 2-mercapthoethanolate ion is a conjugated base, 2-mercaptoethanol (CAS 60-24-2) its undissociated acid. With a pKa value of ca. 9.5 for both substances, in an aqueous environment with pH 7, they will be present almost exclusively as 2-mercaptoethanol. Therefore, fate parameters in aqueous environments are assessed by by read-across to 2 -mercaptoethanol. More specific considerations on read-across are given in the endpoint specific sections.
All available relevant environmental fate data is tabulated below.
Physchem property |
Key value for assessment |
Comments |
Phototransformation in air |
Half-life: ca 6 hours |
AOPWIN (v1.92) estimation |
Hydrolysis |
Not expected / probable |
According to structural properties |
Biodegradation |
Readily biodegradable |
Brands, 2016 (read across to 2 -mercaptoethanol) |
Adsorption / desorption |
Koc: ca. 2 (log Kow = 0.28) |
KOCWIN (v2.00) estimation (MCI method) (read across to 2 -mercaptoethanol) |
Henry’s Law Constant |
HLC: 0.0129 Pa·m3/mole |
HENRYWIN (v3.20) estimation (Bond method) (read across to 2 -mercaptoethanol) |
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