Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 259-915-0 | CAS number: 55947-46-1
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
Biodegradation
Biodegradation in water
The predicted data for the test compoundSodium 2-propyne-1-sulphonate (CAS No. 55947-46 -1) and the study for its read across substance were reviewed for the biodegradation end point which are summarized as below:
Estimation Programs Interface Suite (EPI suite, 2016) was run to predict the biodegradation potential of the test compound Sodium 2-propyne-1-sulphonate (CAS No. 55947 -46 -1). The screening test ready biodegradability of the substance was calculated using the software BIOWIN v4.10. The results indicate that Sodium 2-propyne-1-sulphonate is not expected to be readily biodegradable in nature.
A OECD screening test (GREIM H. et. al; 1994) was performed to determine the ready biodegradability of sodium 2–methylprop–2–ene–1–sulphonate.Only 19% degradation was observed for the test chemical. Thus, the test chemical sodium 2–methylprop–2–ene–1–sulphonate was determined to be not readily biodegradable under the test conditions.
Biodegradation study [EUROPEAN COMMISSION European Chemicals Bureau (IUCLID dataset), 2000] was conducted for 3 hrs according to OECD Guideline 303 A "Simulation Test – Aerobic Sewage Treatment: Coupled Unit Test" for evaluating the percentage biodegradability of test substance Sodium 2-propyne-1-sulphonate. Initial test substance conc. used in the study was 10 mg/l. The percentage degradation of test substance was found to be 2.03% by DOC removal in 3 hrs. Thus, the test chemical sodium 2–methylprop–2–ene–1–sulphonate was determined to be not readily biodegradable under the test conditions.
Biodegradation study [EUROPEAN COMMISSION European Chemicals Bureau (IUCLID dataset), 2000] was conducted for 28 days according to Guideline EU Method C.4-A (Determination of the "Ready" Biodegradability - Dissolved Organic Carbon (DOC) Die-Away Test) for evaluating the percentage biodegradability of test substance Sodium 2-propyne-1-sulphonate. Initial test substance conc. used in the study was 11 mg/l. The percentage degradation of test substance was found to be 3% by DOC removal in 28 days. Thus, the test chemical sodium 2–methylprop–2–ene–1–sulphonate was determined to be not readily biodegradable under the test conditions.
On the basis of above results for target and read across substance, it can be concluded that the test substance can be expected to be not readily biodegradable in nature.
Biodegradation in water and sediment
Estimation Programs Interface (EPI) Suite (2016) prediction model was run to predict the half-life in water and sediment for the test compound sodium 2-propyne-1-sulphonate(CAS No. 55947 -46 -1). Half-life of sodium 2-propyne-1-sulphonatein water is estimated to be 15 days (360 hrs) while in sediment it is 135 days (3240 hrs). Based on these half-life value of sodium 2-propyne-1-sulphonate,it is concluded that the chemical is not persistent in water while it is persistent in sediment.
Biodegradation in soil
Based on EPI prediction Level III Fugacity Model (EPI suite, 2016), the estimated half-life period of sodium 2-propyne-1-sulphonate(CAS No. 55947 -46 -1) in soil was obtained to be 30 days (720 hrs). Based on this half-life value of sodium 2-propyne-1-sulphonate, it is concluded that the chemical is not persistent in the soil environment.
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.