Registration Dossier
Registration Dossier
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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 231-957-4 | CAS number: 7782-49-2
- 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
![](https://echa.europa.eu./o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_manufacture-use-and-exposure.png)
Formulation
Documentsopen allclose all
Formulation
- Registration/ Notification status for the use:
- use registered according to REACH Article 10; total tonnage manufactured/imported >=10tonnes/year per registrant
- Name:
- selenium high purity, powder (boundary composition 2p)
- Type of composition:
- boundary composition of the substance
- State / form:
- solid: particulate/powder
- Reference substance:
- selenium high purity, powder (boundary composition 2p)
- Name:
- Selenium crude, powder (boundary composition 1p)
- Type of composition:
- boundary composition of the substance
- State / form:
- solid: particulate/powder
- Reference substance:
- Selenium crude, powder (boundary composition 1p)
- Name:
- Selenium crude, massive (boundary composition 1m)
- Type of composition:
- boundary composition of the substance
- State / form:
- other: massive
- Reference substance:
- Selenium crude, massive (boundary composition 1m)
- Name:
- selenium high purity, massive (boundary composition 2m)
- Type of composition:
- boundary composition of the substance
- State / form:
- other: massive
- Reference substance:
- selenium high purity, massive (boundary composition 2m)
- Name of activity / technique:
- mixing of metal
- Environmental release category (ERC):
- ERC3: Formulation into solid matrix
- Name of activity / technique:
- mixing of metal in closed processes
- Process category (PROC):
- PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
- Name of activity / technique:
- mixing of metal in closed batch processes
- Process category (PROC):
- PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
- Name of activity / technique:
- mixing of metal in open processes
- Process category (PROC):
- PROC 4: Chemical production where opportunity for exposure arises
- Name of activity / technique:
- melting of metals
- Process category (PROC):
- PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
- Name of activity / technique:
- casting
- Process category (PROC):
- PROC 23: Open processing and transfer operations with minerals/metals at elevated temperature
- Name of activity / technique:
- processing of alloys at ambient temperature
- Process category (PROC):
- PROC 26: Handling of solid inorganic substances at ambient temperature
- Name of activity / technique:
- production of alloy powders
- Process category (PROC):
- PROC 27a: Production of metal powders (hot processes)
- Name of activity / technique:
- production of alloy powders (wet processes)
- Process category (PROC):
- PROC 27b: Production of metal powders (wet processes)
- Product category formulated:
- PC 7: Base metals and alloys
- Substance supplied to that use in form of:
- as such
- in a mixture
- Related assessment:
- use assessed in a joint CSR
Referenceopen allclose all
Contributing activity / technique for the environment
Contributing activity / technique for workersopen allclose all
Formulation
- Registration/ Notification status for the use:
- use registered according to REACH Article 10; total tonnage manufactured/imported >=10tonnes/year per registrant
- Name:
- Selenium crude, massive (boundary composition 1m)
- Type of composition:
- boundary composition of the substance
- State / form:
- other: massive
- Reference substance:
- Selenium crude, massive (boundary composition 1m)
- Name:
- Selenium crude, powder (boundary composition 1p)
- Type of composition:
- boundary composition of the substance
- State / form:
- solid: particulate/powder
- Reference substance:
- Selenium crude, powder (boundary composition 1p)
- Name:
- selenium high purity, massive (boundary composition 2m)
- Type of composition:
- boundary composition of the substance
- State / form:
- other: massive
- Reference substance:
- selenium high purity, massive (boundary composition 2m)
- Name:
- selenium high purity, powder
- Type of composition:
- legal entity composition of the substance
- State / form:
- solid: particulate/powder
- Reference substance:
- selenium high purity, powder
- Name:
- Selenium metal fine powder
- Type of composition:
- legal entity composition of the substance
- State / form:
- solid: particulate/powder
- Related composition:
- selenium high purity, powder (boundary composition 2p)
- Reference substance:
- Selenium metal fine powder
- Name:
- selenium metal shot
- Type of composition:
- legal entity composition of the substance
- State / form:
- other: massive
- Related composition:
- selenium high purity, massive (boundary composition 2m)
- Reference substance:
- selenium metal shot
- Name:
- selenium high purity, powder (boundary composition 2p)
- Type of composition:
- boundary composition of the substance
- State / form:
- solid: particulate/powder
- Reference substance:
- selenium high purity, powder (boundary composition 2p)
- Environmental release category (ERC):
- ERC3: Formulation into solid matrix
- Process category (PROC):
- PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
- Process category (PROC):
- PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
- Process category (PROC):
- PROC 4: Chemical production where opportunity for exposure arises
- Process category (PROC):
- PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
- Process category (PROC):
- PROC 23: Open processing and transfer operations with minerals/metals at elevated temperature
- Process category (PROC):
- PROC 26: Handling of solid inorganic substances at ambient temperature
- Process category (PROC):
- PROC 27a: Production of metal powders (hot processes)
- Process category (PROC):
- PROC 27b: Production of metal powders (wet processes)
- Substance supplied to that use in form of:
- as such
- in a mixture
- Related assessment:
- use assessed in a joint CSR
Referenceopen allclose all
Contributing activity / technique for the environment
Contributing activity / technique for workersopen allclose all
Formulation
- Registration/ Notification status for the use:
- use registered according to REACH Article 10; total tonnage manufactured/imported >=10tonnes/year per registrant
Contributing activity / technique for the environment
- Name of activity / technique:
- mixing of metal
- Environmental release category (ERC):
- ERC3: Formulation into solid matrix
Contributing activity / technique for workersopen allclose all
- Name of activity / technique:
- mixing of metal in closed processes
- Process category (PROC):
- PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
- Name of activity / technique:
- mixing of metal in closed batch processes
- Process category (PROC):
- PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
- Name of activity / technique:
- mixing of metal in open processes
- Process category (PROC):
- PROC 4: Chemical production where opportunity for exposure arises
- Name of activity / technique:
- melting of metals
- Process category (PROC):
- PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
- Name of activity / technique:
- casting
- Process category (PROC):
- PROC 23: Open processing and transfer operations with minerals/metals at elevated temperature
- Name of activity / technique:
- processing of alloys at ambient temperature
- Process category (PROC):
- PROC 26: Handling of solid inorganic substances at ambient temperature
- Name of activity / technique:
- production of alloy powders
- Process category (PROC):
- PROC 27a: Production of metal powders (hot processes)
- Name of activity / technique:
- production of alloy powders (wet processes)
- Process category (PROC):
- PROC 27b: Production of metal powders (wet processes)
- Substance supplied to that use in form of:
- as such
- in a mixture
- Related assessment:
- use assessed in a joint CSR
Formulation
Contributing activity / technique for the environment
- Environmental release category (ERC):
- ERC3: Formulation into solid matrix
Contributing activity / technique for workersopen allclose all
- Process category (PROC):
- PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
- Process category (PROC):
- PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
- Process category (PROC):
- PROC 4: Chemical production where opportunity for exposure arises
- Process category (PROC):
- PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
- Process category (PROC):
- PROC 23: Open processing and transfer operations with minerals/metals at elevated temperature
- Process category (PROC):
- PROC 26: Handling of solid inorganic substances at ambient temperature
- Process category (PROC):
- PROC 27a: Production of metal powders (hot processes)
- Process category (PROC):
- PROC 27b: Production of metal powders (wet processes)
- Substance supplied to that use in form of:
- as such
- in a mixture
- Related assessment:
- use assessed in a joint CSR
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.
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