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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 240-968-3 | CAS number: 16919-19-0
- 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
Explosiveness
Administrative data
Link to relevant study record(s)
- Endpoint:
- explosive properties of explosives
- Type of information:
- other: Expert statement
- Adequacy of study:
- key study
- Study period:
- Study completion date - 13 June 2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Expert statement
- Principles of method if other than guideline:
- Expert judgment based on the screening procedure as described in:
- CLP, Annex I, Part 2, paragraphs 2.1.4.2 and 2.1.4.3
- Appendix 6 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria
- Technical Guidance Document on the Information Requirements for REACH, Part 2 EWG 1-7, REACH Implementation Project (RIP) 3.3 Phase 2, chapter 7.1.11.3 - GLP compliance:
- no
- Key result
- Parameter:
- other: Determination of the exothermic decomposition energy
- Remarks on result:
- other: Analysis of the above depicted molecular structure revealed, that no such chemical alert structures are present in the molecule. Calculation of the oxygen balance was calculated to -26.94.
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The substance is considered to be non-explosive.
- Executive summary:
No experimental test data according to EU Method A.14 or comparable methods are available for Reactive Blue 069. Hence an expert judgment based on the screening procedure as described in below mentioned guidelines was conducted:
- CLP, Annex I, Part 2, paragraphs 2.1.4.2 and 2.1.4.3
- Appendix 6 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria
- Technical Guidance Document on the Information Requirements for REACH, Part 2 EWG 1-7, REACH Implementation Project (RIP) 3.3 Phase 2, chapter 7.1.11.3
Analysis of the chemical structure reveals no alerts for explosive properties. Also data available in various databases do not contain any information about explosive properties of the substance. The calculation of a chemical oxygen balance gave a value of -26.94. The substance has been demonstrate to decompose starting at about 100-140 °C with no release of explosive of combustible gases and the energy release is expected to be below a critical trigger level of 500 J/g with the onset of energy release being below 500 °C since the enthalpy of formation is demonstrating the decomposition reaction to be endothermic. Therefore, the substance is considered to be non-explosive according to Directive 67/548/EEC and Regulation (EC) 1272/2008 and no further testing is required.
Reference
Screening evaluation
From literature Ammonium fluorosilicate is known to be noncombustible, but it will still release dangerous fumes in a fire, including hydrogen fluoride, silicon tetrafluoride, and nitrogen oxides1. When heating up, the substance is known to decompose starting at about 140-150 °C emitting very toxic fumes of hydrogen fluoride, ammonia, and nitroxides2,3,4. No information on explosive properties are available in literature. Considering that explosive properties are associated with the presence of certain chemical groups in the molecule, a screening evaluation can be conducted aimed to identify the presence of such reactive groups within the molecular structure harvesting the capability for a rapid high energy release. Analysis of the above depicted molecular structure revealed, that no such chemical alert structures are present in the molecule. Calculation of the oxygen balance was calculated to -26.94.
Determination of the exothermic decomposition energy
In this case this analysis is not possible since the substance composes at about 140-150 °C to release SiF4, HF and NH3. Heating up to 350 °C will not result in the release of high energy peaks. The only energy released corresponds with substance decomposition energy. Due to safety reasons because of HF formed this analysis has not been performed and it is referred to literature data at this point. As a result the energy release is expected to be below a critical trigger level of 500 J/g with the onset of energy release being below 500 °C. In addition the dissociation reaction of (NH4)2SiF6in SiF4, 2NH3and 2HFis endotherm (based on the thermodynamic calculation of the enthalpy of formation of the educts (compare data provided inCRC Handbook of Chemistry and Physics, 97th Edition5).
∑DMfproducts - ∑DMfeducts = -12946.24 kJ/kg – (-15051.39 kJ/kg) = -2105.15 kJ/kg (or -2681 kJ/mol).
Description of key information
Ammonium hexafluorosilicate is considered to be non-explosive.
Key value for chemical safety assessment
- Explosiveness:
- non explosive
Additional information
No experimental test data according to EU Method A.14 or comparable methods are available for Reactive Blue 069. Hence an expert judgment based on the screening procedure as described in below mentioned guidelines was conducted:
- CLP, Annex I, Part 2, paragraphs 2.1.4.2 and 2.1.4.3
- Appendix 6 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria
- Technical Guidance Document on the Information Requirements for REACH, Part 2 EWG 1-7, REACH Implementation Project (RIP) 3.3 Phase 2, chapter 7.1.11.3
Analysis of the chemical structure reveals no alerts for explosive properties. Also data available in various databases do not contain any information about explosive properties of the substance. The calculation of a chemical oxygen balance gave a value of -26.94. The substance has been demonstrate to decompose starting at about 100-140 °C with no release of explosive of combustible gases and the energy release is expected to be below a critical trigger level of 500 J/g with the onset of energy release being below 500 °C since the enthalpy of formation is demonstrating the decomposition reaction to be endothermic. Therefore, the substance is considered to be non-explosive according to Directive 67/548/EEC and Regulation (EC) 1272/2008 and no further testing is required.
Justification for classification or non-classification
The substance is considered to be non-explosive according to Directive 67/548/EEC and Regulation (EC) 1272/2008 and accordingly no classification is required.
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.