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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 233-801-0 | CAS number: 10361-92-9
- 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
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 06 July 2017 - 26 October 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Melting / freezing pt.:
- > 600 °C
- Atm. press.:
- 101.325 kPa
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: No melting point was recorded up to 600°C.
- Conclusions:
- The melting behaviour of yttrium trichloride hexahydrate was assessed according to the EU A.1 method and OECD test guideline 102 in compliance with GLP using Differential Scanning Calorimetry (DSC). No melting point of the test item was recorded up to 600°C.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- no data
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Principles of method if other than guideline:
- Data in this peer-reviewed publication were taken from many sources, including both compilations and primary literature. Where conflicts were found, the value deemed most reliable was chosen for inclusion in the handbook. Reference sources were not provided for this parameter, nor were the experimental methods.
- GLP compliance:
- not specified
- Type of method:
- other: not reported, handbook data
- Melting / freezing pt.:
- 721 °C
- Atm. press.:
- 101.325 kPa
- Conclusions:
- According to this peer-reviewed handbook, yttrium trichloride has a melting point of 721°C.
Referenceopen allclose all
Assay No. 1 (isotherm at 25°C for 5 min, heating ramp: 25°C to 600°C at 10°C/min):
An endothermic peak was recorded at about 170°C and the baseline return was recorded at about 280°C. Several exothermic peaks were recorded between 400-450°C. After the assay, the powder remained white but was dehydrated and an overpressure was observed (the lid blown off its place). However, no melting point of the test item was recorded up to 600°C. As no endothermic peak was recorded after 300°C and as an overpressure was recorded, the next assay was performed up to 350°C.
Assay No. 2 (isotherm at 25°C for 5 min, heating ramp: 25°C to 350°C at 10°C/min):
An endothermic peak was recorded at about 170°C and the baseline return was recorded at about 270°C. After the assay, the powder remained white but was dehydrated. No melting point of the test item was recorded up to 350°C.
Assay No. 3 (isotherm at 25°C for 5 min, heating ramp: 25°C to 350°C at 10°C/min):
An endothermic peak was recorded at about 170°C and the baseline return was recorded at about 280°C. After the assay, the powder remained white but was dehydrated. No melting point of the test item was recorded up to 350°C.
Description of key information
Demangel (2017; Klimisch 1) investigated the melting behaviour of yttrium trichloride hexahydrate according to the EU A.1 method and OECD test guideline 102 in compliance with GLP using Differential Scanning Calorimetry (DSC). No melting point of the test item was recorded up to 600°C. Therefore, this study was considered in a weight of evidence approach with melting point data reported in the CRC Handbook of Chemistry and Physics (2016, Klimisch 2). This handbook reports a melting point of 721°C for yttrium trichloride. This value can be used in the chemical safety assessment.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 721 °C
Additional information
In the study of Demangel (2017), an endothermic peak was observed between ca. 170°C and 270-280°C. At the end of the study, the substance was still a white powder but was dehydrated. No melting was observed, however, the endothermic peak was most likely related to the solubilisation of yttrium trichloride in its hydration water and loss of the hydration water during heating.
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.