Calcium hydride powder is an inorganic compound composed of calcium and hydrogen, typically appearing as a grayish-white powder or in lump form. It exhibits strong hygroscopicity and reactivity. Primarily serving as a potent reducing agent, highly effective desiccant, and portable hydrogen source, it finds extensive applications in organic synthesis, specialty metal smelting, and scientific research.
We offer calcium hydride powder in various purities and particle sizes, with customized production and secure packaging tailored to your process requirements. For technical specifications or collaboration discussions, please contact us at any time.
High chemical purity for exceptional reaction efficiency
Uniform, controllable particle size for precise metering and dispersion
Hermetically sealed packaging ensuring storage stability
High hydrogen release rate with superior hydrogen purity
Organic Synthesis and Chemical Reduction: As a potent reducing agent, it effectively reduces oxygen-containing functional groups (e.g., aldehydes, ketones) to alcohols or removes halogens from halides, playing a critical role in fine chemical and pharmaceutical intermediate synthesis.
High-Efficiency Deep-Drying Agent: Exhibits exceptional capture capacity for moisture and trace oxygen, commonly employed to dry water-sensitive organic solvents (e.g., ethers, benzenes) and rare gases, delivering drying performance far surpassing conventional desiccants.
Metal Metallurgy and Powder Preparation: At high temperatures, it serves as a reducing agent for producing high-purity rare metals like tantalum and niobium. It also functions as a deoxidizer for metal powders such as titanium and zirconium.
Portable Hydrogen Source: Reacts with water to rapidly generate high-purity hydrogen, providing a safe and convenient solution for on-site analysis, fuel cell testing, or gas supply in remote locations.
Q1: What are the primary safety risks associated with calcium hydride during handling and storage?
A1: The main risk stems from its violent reaction with moisture (including atmospheric humidity), releasing flammable and explosive hydrogen gas while generating significant heat. Strict isolation from air and moisture is essential; handle and store under dry, inert atmospheres.
Q2: How should calcium hydride waste be safely disposed of?
A2: Do not discard directly. Deactivate it using a slow, controlled method (e.g., by batch-adding large quantities of anhydrous isopropyl alcohol or mineral oil while thoroughly stirring). Once the reaction is complete and no further gas is produced, dispose of it as chemical waste through a specialized facility.
Q3: As a desiccant, what advantages does it have over molecular sieves and silica gel?
A3: Its drying capacity (residual moisture content after drying) far exceeds that of molecular sieves and silica gel, achieving extremely low dew points suitable for the most demanding deep drying applications. However, it is more costly, requires strict operating conditions, and cannot be regenerated.
Q4: What is the purity of the hydrogen produced by the reaction? Does it contain other impurity gases?
A4: Calcium hydride theoretically produces pure hydrogen when reacting with water. However, if impurities are present in the raw materials or water, trace gases (such as ammonia or phosphine) may be introduced. For applications with extremely high purity requirements, it is recommended to purify the produced gas or use ultra-high-purity raw materials.
Each batch is supplied with:
Certificate of Analysis (COA)
Technical Data Sheet (TDS)
Material Safety Data Sheet (MSDS)
Third-party testing reports available upon request
We specialize in the R&D and safe production of highly reactive metal hydride materials, with deep expertise in managing the regulatory requirements and technical challenges of specialty chemicals like calcium hydride. We not only deliver high-quality products but also prioritize providing safe, standardized operational guidance.
Molecular Formula: CaH₂
Molecular Weight: 42.09 g/mol
Appearance: White granules or powder
Density: 1.55 g/cm³
Melting Point: 771 °C
Crystal Structure: Orthorhombic
Signal Word：
Danger
Hazard Statements：
H260 – In contact with water releases flammable gases which may ignite spontaneously
H315 – Causes skin irritation
H319 – Causes serious eye irritation
Inner Packaging: Double-layer sealed plastic bags or aluminum foil bags for moisture and leakage protection.
Outer Packaging: Iron drum or fiber drum, depending on the weight, with reinforced sealed lid.
Hazard Packaging: UN-certified packaging compliant with regulations for hazardous materials transportation.
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