Holmium(III) Carbonate Hydrate Powder Description
Holmium(III) Carbonate Hydrate
Powder is a rare-earth compound composed
of holmium, carbonate ions, and water molecules. This white to off-white
crystalline powder is known for its unique magnetic properties and is widely
utilized in various advanced industrial and scientific applications. As a
hydrated carbonate of holmium, it is typically synthesized through the reaction
of holmium salts with carbonate solutions, followed by careful hydration.
Holmium(III) Carbonate Hydrate Powder Applications
·
Used as a precursor for preparing other
holmium compounds, such as oxides, fluorides, or nitrates.
·
Applied in the production of specialty glass
and ceramics to impart specific optical or magnetic properties.
·
Utilized in research and development involving
rare earth materials and their magnetic characteristics.
·
Employed in certain laser materials and
phosphors due to holmium's sharp electronic transitions.
·
Sometimes investigated for potential use in
nuclear control rods due to holmium’s high neutron absorption cross-section.
·
Can be used in catalysis research involving
rare earth carbonate complexes.
Holmium(III) Carbonate Hydrate Powder Packaging
Our products are packaged in customized cartons of various
sizes based on the material dimensions. Small items are securely packed in PP
boxes, while larger items are placed in custom wooden crates. We ensure strict
adherence to packaging customization and the use of appropriate cushioning
materials to provide optimal protection during transportation.

Packaging: Carton, Wooden Box, or Customized.
Kindly review the packaging
details provided for your reference.
Manufacturing Process
1. Testing Method
(1) Chemical Composition Analysis - Verified using techniques
such as GDMS or XRF to ensure compliance with purity requirements.
(2) Mechanical Properties Testing - Includes tensile strength,
yield strength, and elongation tests to assess material performance.
(3) Dimensional Inspection - Measures thickness, width, and
length to ensure adherence to specified tolerances.
(4) Surface Quality Inspection - Checks for defects such as
scratches, cracks, or inclusions through visual and ultrasonic examination.
(5) Hardness Testing - Determines material hardness to confirm
uniformity and mechanical reliability.
Please refer to the SAM testing procedures for detailed information.
Holmium(III) Carbonate Hydrate Powder (Ho2(CO3)3 . xH2O) FAQs
Q1. What is Holmium(III) Carbonate Hydrate Powder used
for?
It is mainly used as a precursor for other holmium
compounds, in specialty glass and ceramics, research on rare earth materials,
and in some laser and magnetic applications.
Q2. What is the typical hydration level (xH₂O) in this
compound?
The exact number of water molecules can vary depending on
synthesis and storage conditions, but it is typically in the range of 3 to 6
waters of hydration.
Q3. Is it soluble in water or other solvents?
Holmium(III) carbonate is generally insoluble in water but
may react with acids to form soluble holmium salts.
Performance Comparison Table with Competitive Products
Property/Aspect
|
Praseodymium Carbonate Powder
|
Holmium(III) Carbonate Hydrate Powder
|
Chemical Composition
|
Pr₂(CO₃)₃
|
Ho₂(CO₃)₃·xH₂O
|
Appearance
|
Yellow to greenish-yellow powder
|
White to off-white crystalline powder
|
Molar Mass
|
~396.5 g/mol
|
Varies depending on hydration level (~380-420 g/mol)
|
Solubility
|
Slightly soluble in water, dissolves in acids
|
Soluble in acids, sparingly soluble in water
|
Magnetic Properties
|
Paramagnetic, used in magnetic applications
|
Strongly paramagnetic, used in high-performance magnets
|
Key Applications
|
- Manufacturing of praseodymium-based catalysts
|
- Production of high-performance magnets and alloys
|
- Polishing powders
|
- Phosphors for lighting and laser materials
|
- Production of rare-earth materials
|
- Medical imaging (MRI contrast agents)
|
- Special alloys for aerospace and electronics
|
- Laser materials and optical devices
|
Related Information
1. Common Preparation Methods
Holmium(III) Carbonate Hydrate Powder (Ho₂(CO₃)₃ · xH₂O) is
typically prepared by a precipitation reaction between a soluble holmium salt
and a carbonate source. First, holmium nitrate \[Ho(NO₃)₃] or holmium chloride
[HoCl₃] is dissolved in deionized water to form a clear solution. Separately, a
solution of sodium carbonate (Na₂CO₃) or ammonium carbonate ((NH₄)₂CO₃) is
prepared. The carbonate solution is then slowly added to the holmium solution
under continuous stirring at room temperature. A white to pale pink precipitate
of holmium(III) carbonate hydrate forms as the two solutions react. This
precipitate is filtered, thoroughly washed with deionized water to remove by-products
such as sodium or ammonium salts, and then dried at 60–100°C. The resulting
powder is a hydrated form of holmium carbonate, with the exact water content
depending on drying conditions. The overall reaction when using holmium nitrate
and sodium carbonate can be represented as: 2Ho (NO₃)₃ + 3Na₂CO₃ → Ho₂(CO₃)₃↓ + 6NaNO₃.