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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 240-896-2 | CAS number: 16871-90-2
Guidance on Safe Use
Administrative data
First-aid measures
If in contact with skin:
wash immediately with large amounts with water. Wash hands and all contaminated areas with water. Remove clothes and shoes.
Gently wash with plenty of soap and water.
If in contact with eyes:
rinse immediately with large amounts of water. Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing. Get medical attention if irritation occurs or persists.
If inhaled:
Remove victim to fresh air and keep at rest in a position comfortable for breathing.
Get medical attention immediately.
If swallowed:
Rinse mouth.
Get medical attention immediately.
Fire-fighting measures
Suitable fire extinguishing media: Use regular dry chemical extinguisher
The product is not flammable.
Toxic gases may be formed.
In case of fire:
Evacuate area.
Fight fire with normal precautions from a reasonable distance.
Wear suitable respiratory equipment.
Total impervious protective suits, gloves, and boots must be worn.
Accidental release measures
Keep public away from danger area.
Environmental precautions :
Prevent entry to sewers and public waters. Notify authorities if product enters sewers or public waters.
After spillage and/or leakage :
Sweep or shovel spills into appropriate container for disposal.
Avoid dust production.
Do not breathe dust.
Do not get in eyes, on skin, or on clothing.
Use only outdoors or in a well-ventilated area.
Wear protective gloves, eye and respiratory protection.
see section exposures control/ personal protection
Handling and storage
Avoid inhalation, absorption, and contact with the product. Handle carefully. Keep container tightly closed.
Avoid contact during pregnancy/ while nursing. Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Use personal protective equipment as required. Do not get in eyes, on skin, or on clothing.
Store in a dry place. Store in a well-ventilated place. Store in a closed container. Store away from other materials.
Transport information
Land transport (UN RTDG/ADR/RID)
- UN number:
- 2674
Shippingopen allclose all
SpecialProvisionsopen allclose all
Shippingopen allclose all
Remarksopen allclose all
Marine transport (UN RTDG/IMDG)
Shippingopen allclose all
Remarksopen allclose all
Shippingopen allclose all
Remarksopen allclose all
SpecialProvisionsopen allclose all
Exposure controls / personal protection
measures for workers:
Use gloves, eye protection and wear suitable protective clothing. Do not use contact lenses.
Avoid inhalation of dust.
Wear respiratory protection mask (type P3 or FFP3).
technical measures:
Occupational Exposure Limit Value - (8h, TWA) as F= 2,5 mg/m³.
Use in a well-ventilated area.
Provide a local exhaust ventilation system at the sources of emission.
Do not eat, drink or smoke when using the substance.
Stability and reactivity
Stable under normal conditions, but hydrolysable in aqueous solution. Do not use at temperatures higher than 620ºC due to decomposition.
Avoid temperatures higher than 390ºC. Avoid contact with water, acids, oxidising agents, cyanides. active metals,s uch as Al or Mg. Not soluble in organic solvents. Dissociation reaction provides hexafluorosilicate as product, which hydrolyses providing fluoride and release of HF being possible. At temperatures higher than 390ºC, SiF4 and NaF are formed.
Disposal considerations
Dispose waste according to local/regional/national regulations.
Containers should be carefully cleaned before disposal.
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.
