CAS： 10138-62-2
MF： Cl3Ho
Appearance： Off-white powder
Packing： 2kg/bag, 50kg/drum
Purity： Ho2O3/TREO≥99.99% H2O≤0.5%
|
Preparation |
Holmium Chloride Anhydrouse 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 |
|
Physical properties |
Yellow monoclinic crystals; hygroscopic; density 3.7 g/cm3; melts at 718°C;vaporizes at 1,500°C; readily dissolves in water. |
InChI:InChI=1/3ClH.Ho/h3*1H;/q;;;+3/p-3
The phase diagrams of the pseudo-binary ...
The molar heat capacity, C p,m, of a com...
The refractive indexes of molten HoCl3-N...
The crystal and molecular structures of ...
Solid state Ln2-L3 compounds, where Ln s...
The changes of the distribution constant...
Solid-state Ln-L compounds, where Ln sta...
holmium(III) oxide
erbium(III) oxide
potassium chloride
chlorine
erbium(III) chloride
holmium(III) chloride
| Conditions | Yield |
|---|---|
|
With pyrographite; In gas; byproducts: CO; by chlorination-chem. vapor transport react.; mixt. of Er2O3 and Ho2O3 with carbon and KCl (1:1:6:1 at. ratio) placed in alumina reactor and chlorinated with dry Cl2 (20 cm**3/min) at 800 K for 2 h; gas replace by Ar:Cl2 at 800-1300 K; detn. of separation factor;
|
43.54% 47.72% |
hydrogenchloride
holmium(III) oxide
holmium(III) chloride
| Conditions | Yield |
|---|---|
|
In not given; dissol. of Ln oxide in 3 M HCl; evapn.;
|
|
|
In water; dissolving Ho2O3 in HCl soln.; evapn.;
|
|
|
In hydrogenchloride; metal oxide treated with concd. HCl; soln. evapd. to near dryness;
|
|
|
In neat (no solvent); oxide was treated with concd. HCl; evapd.; residue dissolved in H2O; evapd.;
|
|
|
In hydrogenchloride; dissolving the oxide in dilute HCl(1:1) with heating, evaptg., cooling, dissolving in H2O;
|
|
|
In hydrogenchloride; oxide dissoln. in concd. HCl, soln. evapn.; residue dissoln. in water, diln. to desired vol.;
|
|
|
In hydrogenchloride; prepn. by treatment of metal oxide with concd. HCl; soln. evapd. to near dryness;
|
|
|
In aq. HCl; oxide treated with concd. HCl; soln. evapd. near dryness; residue redissolved in H2O; soln. evapd. neardryness;
|
|
|
In hydrogenchloride; oxide treated with concd. HCl; soln. evapd. near dryness;
|
|
|
In hydrogenchloride; oxide dissoln. in stoich. amount of HCl (1:1); soln. evapn. on water bath until crystal film appeared, cooling to room temp., crystals sepd.;
|
|
|
In hydrogenchloride;
|
|
|
In neat (no solvent); oxide was treated with concd. HCl; evapd.;
|
|
|
|
|
|
In water; dissoln.; drying (vac., 90°C; HCl stream, 120-250°C, 1 week);
|
|
|
In hydrogenchloride; prepn. by dissolving of oxide in HCl;
|
|
|
In neat (no solvent); oxide was treated with concd. HCl;
|
|
|
In hydrogenchloride; by dissolving oxide in HCl sol.; excess HCl was evapd.;
|
|
|
In hydrogenchloride; oxide was dissolved in aq. HCl; soln. was evapd. to dryness;
|
|
|
In hydrogenchloride; prepn. by treatment metal oxide with concd. HCl; soln. evapd. to near dryness; residue redissolved in H2O; soln. evapd. near dryness;
|
|
|
In water; oxide dissolved in hot hydrochloric acid; concn. of soln. by evapn.;
|
|
|
In hydrogenchloride; prepn. by treatment of oxide with concd. HCl; soln. evapd. near dryness;
|
|
|
In hydrogenchloride; Ho2O3 dissolved in 15% HCl;
|
chlorine
aluminium trichloride
tetrachloromethane
hydrogenchloride
holmium
Ho(C6H5C3N2(CH3)2ONHCOCH3)2Cl3
