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EC number: 241-034-8 | CAS number: 16961-83-4
- 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
No acute toxicity data have been identified for the substance: no testing has been performed and non is proposed. The substance is classified as H314 – Causes severe skin burns and eye damage according to CLP Regulation (No. 1272/2008 of 16 December 2008), therefore acute toxicity will be dominated by local (site of contact) irritant and corrosive effects. Testing of the substance for acute toxicity is not justified and was waived based on GLP Regulation Annex VII, column 2 specific rules of adaptation of 18 December 2006.
The boundary composition reports that H2SiF6 may contain “Free hydrogen fluoride, expressed as HF (%): max 15 %on dry basis”. Hydrogen fluoride has a harmonized classification in place.
Based on the classification of mixtures, classification shall therefore be given based on the % HF concentration.
Key value for chemical safety assessment
Acute toxicity: via oral route
Endpoint conclusion
- Endpoint conclusion:
- no study available
Acute toxicity: via inhalation route
Endpoint conclusion
- Endpoint conclusion:
- no study available
Acute toxicity: via dermal route
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
No reliable data are available. The acute oral, dermal and inhalation toxicity is likely to be dominated by local (site of contact) effects as a consequence of the corrosivity of the substance. Further testing was waived based on GLP Regulation Annex VII, column 2 specific rules of adaptation of 18 December 2006.
The boundary composition reports that H2SiF6 may contain “Free hydrogen fluoride, expressed as HF (%): max 15 %on dry basis”.
Hydrogen fluoride has a harmonized classification in place, and it is classified for Acute toxicity hazard as following :
Oral Acute tox 2; (LD50 Oral: Not available: ATE = 5)
Dermal Acute tox 1; (LD50 Dermal: Not available: ATE = 5)
Inhalation Acute tox 2; (LD50 Inhalation: Not available: ATE = 100).
Based on the classification of mixtures, classification of a substance containing HF as impurity result to be the following. Classsification shall therefore be given based on the % HF concentration.
Oral Acute Tox Cons:
Acute tox 2: ATE mix < 50 => CHF >100*5/50 = 10 %
Acute Tox 3: ATE mix < 300 => CHF >100*5/300 = 1,6 %
Acute Tox 4: ATE mix < 2000 => CHF >100*5/2000 = 0,25%
Dermal Acute Tox Cons:
Acute tox 1: ATE mix < 50 => CHF >100*5/50 = 10 %
Acute Tox 2: ATE mix < 200 => CHF >100*5/200 =2,5%
Acute Tox 3: ATE mix < 1000 => CHF >100*5/1000 = 0,5 %
Acute Tox 4: ATE mix < 2000 => CHF >100*5/2000 = 0,25%
Inhalation Acute Tox Cons:
Acute tox 2: ATE mix < 500 => CHF >100*100/500 = 20 %
Acute Tox 3: ATE mix < 2500 => CHF >100*100/2500 = 4 %
Acute Tox 4: ATE mix < 20000 => CHF >100*100/20000 = 0,5%
Justification for classification or non-classification
Acute toxicity testing was waived based on corrosive properties of the substance. There is no reliable information to classify Hexafluorisilic acid for acute oral, dermal or inhalation toxicity based CLP Regulation (No. 1272/2008 of 16 December 2008).
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