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HomeProduct name listHolmium chloride

Holmium chloride

Synonym(s):Holmium chloride;Holmium(III) chloride

  • CAS NO.:10138-62-2
  • Empirical Formula: Cl3Ho
  • Molecular Weight: 271.29
  • MDL number: MFCD00011051
  • EINECS: 233-387-1
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-08-28 13:53:20
Holmium chloride Structural

What is Holmium chloride?

Chemical properties

Yellow monoclinic crystals; hygroscopic; density 3.7 g/cm3 ; melts at 718°C; vaporizes at 1,500°C; readily dissolves in water.
Holmium Chloride

Physical properties

Yellow monoclinic crystals; hygroscopic; density 3.7 g/cm3; melts at 718°C;vaporizes at 1,500°C; readily dissolves in water.

The Uses of Holmium chloride

Holmium chloride is an intermediate for preparing holmium metal.

The Uses of Holmium chloride

Holmium(III) chloride has many application in the field of nuclear industry, lasers research applications. It is also employed in calibration of optical spectrophotometers.

Preparation

Holmium 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

Properties of Holmium chloride

Melting point: 718 °C(lit.)
Boiling point: 1500°C
Density  3,7 g/cm3
storage temp.  under inert gas (nitrogen or Argon) at 2-8°C
solubility  soluble in H2O
form  powder
color  Off-white to pink
Water Solubility  Soluble in water.
Sensitive  Hygroscopic
Merck  14,4727
Stability: hygroscopic
CAS DataBase Reference 10138-62-2(CAS DataBase Reference)
EPA Substance Registry System Holmium chloride (HoCl3) (10138-62-2)

Safety information for Holmium chloride

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for Holmium chloride

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