Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification · 5 items
This chemical does not meet GHS hazard criteria for 2.1% (1 of 47) of reports.
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 47 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory InformationHolmium chloride (HoCl3): Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Hazards SummarySee Holmium. See RARE EARTH METALS and linked occupational diseases.
Hazard Classes and CategoriesSkin Irrit. 2 (97.9%)
Toxicology
Adverse EffectsFibrogenic - Inducing tissue injury and fibrosis (scarring).
Safety data
PPE
dust mask type N95 (US), Eyeshields, Gloves
wgk
3
tsca
TSCA listed
rtecs
MS7350000
hs_code
28469000
Chemistry & industry
Uses & manufacturing
General Manufacturing InformationHolmium chloride (HoCl3): ACTIVE
Applications
UsesHolmium(III) chloride has many application in the field of nuclear industry, lasers research applications. It is also employed in calibration of optical spectrophotometers.
UsesHolmium chloride is an intermediate for preparing holmium metal.
Preparation methods · 1 item
PreparationHolmium chloride is obtained from rare-earth minerals. Recovery steps are discussed above (see Holmium). The rare-earth mineral is cracked by acid attack by heating with hydrochloric acid. The water-soluble chloride salt is filtered and separated from insoluble residues. The hydrated chloride salt is heated at 350°C in a current of hydrogen chloride to yield anhydrous HoCl3 . Heating in air in the absence of hydrogen chloride yields holmium oxychloride, HoOCl. Holmium chloride may be purified by distillation or vacuum sublimation. Holmium chloride also can be prepared by heating holmium oxide with ammonium chloride: Ho2O3 + 6NH4Cl-->2HoCl3 + 6NH3 + 3H2O