Description Chemical Properties Uses Preparation
ChemicalBook > CAS DataBase List > Holmium Oxide

Holmium Oxide

Description Chemical Properties Uses Preparation
Product Name
Holmium Oxide
CAS No.
12055-62-8
Chemical Name
Holmium Oxide
Synonyms
Rare earth;Holmia;HOLMIUM OXIDE;La-Ce-Tb Oxide;mium(III) oxide;HOLMIUM(+3)OXIDE;Holmium(Ⅲ) oxide;Holmium trioxide;UV-VIS STANDARD 6;HOLMIUM(III) OXIDE
CBNumber
CB0216119
Molecular Formula
H2HoO
Formula Weight
182.95
MOL File
12055-62-8.mol
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Holmium Oxide Property

Melting point:
>100 °C(lit.)
Density 
1.0966 g/mL at 25 °C
storage temp. 
no restrictions.
solubility 
DMSO (Slightly, Heated), Methanol (Slightly, Heated), Water (Slightly, Heated)
form 
nanopowder
color 
Light yellow-orange to beige
Specific Gravity
8.36
Water Solubility 
Insoluble in water. Soluble in perchloric acids.
Crystal Structure
Sc2O3 type
crystal system
Cube
Merck 
14,4727
Space group
Ia3
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
1.060831.060831.060839090901.1938
Stability:
Stable, but may be air or moisture sensitive. Incompatible with strong acids.
InChIKey
JYTUFVYWTIKZGR-UHFFFAOYSA-N
CAS DataBase Reference
12055-62-8(CAS DataBase Reference)
EPA Substance Registry System
Holmium oxide (Ho2O3) (12055-62-8)
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Safety

Safety Statements 
22-24/25
WGK Germany 
3
F 
3-10-23
TSCA 
Yes
HS Code 
2846 90 20
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H227Combustible liquid

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P370+P378In case of fire: Use … for extinction.

P403+P235Store in a well-ventilated place. Keep cool.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
229679
Product name
Holmium(III) oxide
Purity
powder, 99.999% trace metals basis
Packaging
1g
Price
$88.9
Updated
2024/03/01
Sigma-Aldrich
Product number
229679
Product name
Holmium(III) oxide
Purity
powder, 99.999% trace metals basis
Packaging
10g
Price
$578
Updated
2024/03/01
Sigma-Aldrich
Product number
1.12469
Product name
Holmium(III) oxide
Purity
LAB
Packaging
2g
Price
$87.1
Updated
2024/03/01
Sigma-Aldrich
Product number
1.12469
Product name
Holmium(III) oxide
Purity
LAB
Packaging
5G
Price
$133
Updated
2024/03/01
Sigma-Aldrich
Product number
637327
Product name
Holmium(III) oxide
Purity
nanopowder, <100?nm avg. part. size (DLS), ≥99.9% trace metals basis
Packaging
50g
Price
$840
Updated
2023/06/20
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Holmium Oxide Chemical Properties,Usage,Production

Description

Holmium oxide occurs in nature, usually associated with small quantities of other rare-earth oxides. Commercial applications of this compound have not been explored fully. It is used in refractories and as a catalyst. Characteristic spectral emission lines of holmium oxide glass are used to calibrate spectrophotometers.

Chemical Properties

Holmium oxide (Ho2O3), also known as Holmia, is a light yellow powder that is one of the most paramagnetic substances known.

Holmium oxide glass has been used as a wavelength standard for over four decades. It has a number of desirable features that have made it a commonly used wavelength standard. It does not induce a slit positioning error as atomic emission lamps may. It is also compact, easy to use, and most importantly, stable over long periods of time.the use of filters made of holmium oxide glass allows the calibration of wavelength for a spectrophotometer over a broad range.

Uses

Holmium(III) oxide acts as colorants which is used for cubic zirconia and glass, as a calibration standard for optical spectrophotometers, as a specialty catalyst, phosphor and a laser material.
Holmium Oxide, also called Holmia, has specialized uses in ceramics, glass, phosphors and metal halide lamp, and dopant to garnet laser. Holmium can absorb fission-bred neutrons, it is also used in nuclear reactors to keep atomic chain reaction from running out of control. Holmium Oxide is one of the colorants used for cubic zirconia and glass, providing yellow or red coloring.
It is also used in Yttrium-Aluminum-Garnet (YAG) and Yttrium-Lanthanum-Fluoride (YLF) solid-state lasers found in microwave equipment (which are in turn found in a variety of medical and dental settings).

Preparation

Holmium oxide is prepared by thermal decomposition of carbonate, oxalate, hydroxide, nitrate, sulfate, or any oxo salt of holmium:
Ho2(CO3)3 →Ho2O3 + 3CO2
Ho2(SO4)3 →Ho2O3 + 3SO3
The oxide may be obtained by direct combination of elements at elevated temperatures. The element in massive form, however, reacts slowly at high temperatures.

Chemical Properties

slightly beige solid

Physical properties

Yellow cubic crystal; density 8.41 g.cm3; melts at 2,415°C; insoluble in water; dissolves in acids (with reactions).

Uses

Holmium(III) oxide iacts as colorants which is used for cubic zirconia and glass, as a calibration standard for optical spectrophotometers, as a specialty catalyst, phosphor and a laser material.

Uses

Refractories, special catalyst.

Application

Holmium Oxide can be used as:

  • A starting material to prepare Ho2O3-PVAfilm for generating stable Q-switching pulses in a thulium-doped fiber laser(TDFL) cavity.
  • A catalyst for oxidative coupling of methane.
It can also be used as a dopant in the preparation of:
  • Cadmium lead borate glasses.
  • Diamond/copper composites to eliminate interfacial defects through the spark plasma sintering (SPS) method.

Holmium Oxide Preparation Products And Raw materials

Raw materials

Holmium(III) nitrate pentahydrate

Preparation Products

low-aluminium molecular sieve catalytic cracking catalyst Rare earth naphthenates Nickel-hydrogen battery Nitrogen phosphorus potassium mixed fertilizer Y type molecular sieve methanation catalysts CERIUM(III) CHLORIDE ANHYDROUS Dibutyl ether ion-absorbing type rare earths ore naphtha steam reforming catalysts primary natural gas steam reforming catalysts NEODYMIUM CARBONATE OCTAHYDRATE rare earth magnetic polymer medium temperature Shift catalysts Ethyl lactate Ethyl L(-)-lactate molecular sieve．Rare-earths diammonium diuranium heptaoxide medium(high)temperature Shift catalysts
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View Lastest Price from Holmium Oxide manufacturers

Baoji Guokang Healthchem co.,ltd
Product
Holmium Oxide 12055-62-8
Price
US $2023.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20tons
Release date
2021-06-07
Zhuozhou Wenxi import and Export Co., Ltd
Product
HOLMIUM OXIDE 12055-62-8
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-11
Career Henan Chemical Co
Product
HOLMIUM OXIDE 12055-62-8
Price
US $1.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
Customized
Release date
2018-12-19

12055-62-8, Holmium OxideRelated Search:

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