Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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: 240-934-8 | CAS number: 16893-85-9
Manufacture, use & exposure
Uses by professional workers
Documentsopen allclose all
Uses by professional workers
- 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:
- Waste gases from glass melting process are guided to an electrical filter. On the way to the filter very fine Ca(OH)2 powder is given to the gas stream reacting with the different gases and form filter dust which is collected in a big electrical filter system. The filter dust is collected and brought to special deposition.
- Environmental release category (ERC):
- ERC8c: Widespread use leading to inclusion into/onto article (indoor)
Contributing activity / technique for workers
- Name of activity / technique:
- The sodium hexafluorosilicate is used in the melting / refining process as a raw material to get certain properties of the glass. The material is given to the batch mixture from a hopper where about 1 ton of the material is stored. Is the correct weight in the scale, all materials go into a batch mixer and from there into the hopper above the batch feeding machine. The batches for our furnaces are produced around the clock (24/7). When the workers are in direct contact with the material ( feeding the hopper) they use gloves and filter masks for protection.
- Process category (PROC):
- PROC 5: Mixing or blending in batch processes
- PROC 23: Open processing and transfer operations with minerals/metals at elevated temperature
- Product category used:
- PC 15: Non-metal-surface treatment products
- Sector of end use:
- SU 0: Other: Manufacture of different types of glass.
- Substance supplied to that use in form of:
- as such
- Subsequent service life relevant to this use:
- no
Contributing scenario for the environment (related to workers activities)
Conditions of use for the environment
Amounts used, frequency and duration of use (or from service life)
Conditions and measures related to Biological Sewage Treatment Plant
- Biological Sewage Treatment Plant (STP):
- no
Conditions and measures related to external treatment of waste (including article waste)
- Particular considerations on the waste treatment operations:
- other: See details below.
Other conditions affecting environmental exposure
- Place of use:
- indoor
Contributing scenario for the workers
Conditions of use for workers
Product (article) characteristics
- Physical form of the used product:
- solid (unspecified form)
Amounts used (or contained in articles), frequency and duration of use/exposure
Other conditions affecting workers exposure
- Place of use:
- indoor
Uses by professional workers
Contributing activity / technique for the environment
- Environmental release category (ERC):
- ERC8b: Widespread use of reactive processing aid (no inclusion into or onto article, indoor)
Contributing activity / technique for workers
- Process category (PROC):
- PROC 11: Non industrial spraying
- Sector of end use:
- SU 0: Other: SU22
- Subsequent service life relevant to this use:
- yes
Uses by professional workers
- Registration/ Notification status for the use:
- use registered according to REACH Article 10; total tonnage manufactured/imported >=10tonnes/year per registrant
- Regulatory status:
- other: Substance is not included in the end product, but used to amend the properties of metals.
Contributing activity / technique for the environment
- Name of activity / technique:
- The substance is melted in melted alloy, producing fumes (the downstream user may have ventilation and air filters on his site). The solid part of the reacted product is collected and recycled by a specialized company. No release into water.
- Environmental release category (ERC):
- ERC8b: Widespread use of reactive processing aid (no inclusion into or onto article, indoor)
Contributing activity / technique for workers
- Name of activity / technique:
- PROC22, PROC23, PROC 26: the product is spread on melted metal (by worker with a tool or by automatic device). Possible presence of air extraction above the furnace. After the reaction, the product is skimmed off the metal bath, let cool down to ambient temperature and this dross is packaged, in order to be recycled by a specialised company. The worked usually uses gloves but not necessarily masks. Concentration of sodium fluosilicate in the final product : below 15%.
- Process category (PROC):
- PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
- PROC 23: Open processing and transfer operations with minerals/metals at elevated temperature
- PROC 26: Handling of solid inorganic substances at ambient temperature
- Product category used:
- PC 14: Metal surface treatment products
- Sector of end use:
- SU 14: Manufacture of basic metals, including alloys
- Subsequent service life relevant to this use:
- no
- Insignificant exposure via the following route:
- oral
- dermal
- eye
- inhalatory
- Insignificant release via the following route:
- water
Contributing scenario for the workers
Conditions of use for workers
Product (article) characteristics
- Physical form of the used product:
- solid (material with no or very low dustiness)
Amounts used (or contained in articles), frequency and duration of use/exposure
Technical and organisational conditions and measures
Technical and organisational conditions
Effectiveness
- Route affected:
- inhalation
Conditions and measures related to personal protection, hygiene and health evaluation
Effectiveness
Other conditions affecting workers exposure
Uses by professional workers
Contributing activity / technique for the environment
- Environmental release category (ERC):
- ERC5: Use at industrial site leading to inclusion into/onto article
Contributing activity / technique for workersopen allclose all
- 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 6: Calendering operations
- Process category (PROC):
- PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
- Sector of end use:
- SU 0: Other: SU22
- Subsequent service life relevant to this use:
- no
Uses by professional workers
Contributing activity / technique for workers
- Process category (PROC):
- PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
- Sector of end use:
- SU 0: Other: SU22
- Subsequent service life relevant to this use:
- no
Uses by professional workers
Contributing activity / technique for workers
- Process category (PROC):
- PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
- Sector of end use:
- SU 0: Other: SU22
- Subsequent service life relevant to this use:
- no
Uses by professional workers
Contributing activity / technique for the environment
- Environmental release category (ERC):
- ERC8c: Widespread use leading to inclusion into/onto article (indoor)
Contributing activity / technique for workersopen allclose all
- 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 6: Calendering operations
- Process category (PROC):
- PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
- Subsequent service life relevant to this use:
- yes
Uses by professional workers
Contributing activity / technique for the environment
- Environmental release category (ERC):
- ERC8c: Widespread use leading to inclusion into/onto article (indoor)
Contributing activity / technique for workersopen allclose all
- 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 6: Calendering operations
- Process category (PROC):
- PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
- Subsequent service life relevant to this use:
- no
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.
