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Buy calcium in the highest purity
Calcium products from ChemPUR: high purities, flexible forms, and reliable quality for research and technology.
Our calcium range
Calcium products for science and industry
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Physical Properties
Melting Point
842.0°C
Boiling Point
1,484.0°C
Frequently Asked Questions
Our FAQs provide you with a quick overview of important topics related to our product range. If you have any further questions, we will of course also be happy to assist you personally.
Purchasing / Sales
We will be happy to advise you individually
In which purities is scandium available?
At ChemPUR, you can obtain calcium in purities that meet the requirements of demanding research and industrial applications. Calcium is one of the base alkaline earth metals and tends to react with oxygen and moisture, which is why the purity of the starting material is crucial for reproducible results. High-purity and ultra-high-purity grades are packaged and stored under appropriate conditions to minimize contamination through oxidation or hydrolysis.
Which purity level is suitable for your purpose depends on the respective application—whether material research, synthetic chemistry, or technical processes. Our specialist team is directly available to answer questions regarding specifications or the availability of specific purity grades.
Which forms does ChemPUR offer?
Calcium is available in various forms, with granules being among the most common delivery forms. Since calcium, as a base alkaline earth metal, is sensitive to air and water, special forms such as pieces or specifically fabricated semi-finished products are manufactured upon request. As an owner-managed family business, we maintain short decision-making paths and personal communication with our customers—without detours through call centers.
Our global dealer network enables the procurement of even special forms and qualities that are not part of the regular stock. Custom-made products are realized just as much as individual quantity adjustments. Quality assurance is carried out according to ISO 9001:2015, ensuring consistent standards across all deliveries. We provide expert and direct advice for specific requirements.
For which applications is calcium used?
Calcium is used in various research and industrial applications depending on its form, purity, and compound class. Due to its high reactivity, metallic calcium is primarily relevant for metallurgical and preparative processes.
Calcium compounds such as calcium acetate, calcium chloride, calcium nitrate, or calcium oxalate are suitable for wet-chemical syntheses, analytics, and as a defined calcium source in reaction systems. For material science and technical applications, calcium carbonate, calcium oxide, calcium hydroxide, calcium aluminate, calcium titanate, and calcium tungstate are available, among others.
Calcium phosphates are particularly interesting for phosphate-containing material systems. For thin-film technology applications, ChemPUR also offers calcium fluoride as pieces or high-purity single-crystal pieces for evaporation processes. Which calcium quality is suitable depends on purity, reactivity, solubility, and the desired process. We would be happy to advise you on selecting the right calcium product.
Is calcium delivered worldwide?
ChemPUR supplies customers from research, universities, and industry in numerous countries. Calcium and calcium compounds can be delivered internationally depending on the product, availability, and destination country. Our global dealer network also supports the procurement of special qualities or product forms that are not immediately available in the standard range.
For metallic calcium, special requirements for packaging, storage, and transport must be observed, as the material can be reactive to air and moisture. Shipping preparation is therefore carried out carefully and in consideration of the applicable transport and export law requirements.
The respective requirements for calcium compounds are also checked on a product-specific basis. Depending on the compound, quantity, and destination country, different specifications for labeling, documentation, customs processing, or dangerous goods transport may apply. Our team is happy to assist with questions regarding delivery conditions, shipping options, or required accompanying documents. We check the details of your inquiry individually and support you in safe and compliant processing.
Which calcium compounds are available?
In addition to metallic calcium, ChemPUR offers a wide selection of calcium compounds for chemical, material science, and technical applications. For classic wet-chemical processes and syntheses, calcium acetate, calcium chloride, calcium nitrate, calcium oxalate, and calcium sulfate are available, among others. These compounds are particularly suitable when calcium is required in a well-defined, reactive, or processable form.
For applications with oxidic, ceramic, or mineral materials, the range includes calcium carbonate, calcium hydroxide, and calcium oxide in various purities. Particularly high-purity calcium oxide grades are available up to 99.99% and are reported with specific details on accompanying elements such as strontium and magnesium. In addition, calcium aluminate, calcium titanate, and calcium tungstate are available for material science issues.
ChemPUR also offers suitable compound classes for special inorganic systems, including calcium boride, calcium fluoride, calcium phosphates, calcium hypophosphite, and calcium pyrophosphate. Calcium fluoride is available both as a powder in various purity levels and as pieces for evaporation processes—up to high-purity single-crystal pieces with 99.999%.
For precursor and specialty applications, we also carry calcium 2,4-pentanedionate as well as organic calcium compounds such as calcium 2-ethylhexanoate, calcium gluconate, and calcium lactate. Which compound is best suited depends on purity, solubility, reactivity, and the desired application. We would be happy to check with you which calcium compound fits your process or research project.
What distinguishes calcium from other elements?
Whether for synthesis, analytics, or material development—calcium occupies a special position among the alkaline earth metals, resulting from its combination of high chemical reactivity and broad application relevance. With atomic number 20, calcium belongs to the second main group and the fourth period of the periodic table. It is the fifth most abundant element in the Earth’s crust and, at the same time, a very base metal that oxidizes rapidly in air and reacts with water to evolve hydrogen.
This reactivity makes calcium an effective reducing agent in metallurgical processes on the one hand, but requires special care in storage and handling on the other. Compared to other alkaline earth metals, calcium combines relatively good availability with versatile compound chemistry, ranging from simple salts to functional precursors for thin-film technology and ceramics. Our specialist team is available for advice on safe handling.
Why is ChemPUR the right partner for calcium?
Our available specifications range from technical purities for industrial processes to high-purity grades for research and analytics—and it is precisely this bandwidth that characterizes ChemPUR’s calcium offering. As an ISO 9001:2015 certified company, we ensure consistent quality standards across the entire range. The global dealer network allows for the procurement of even hard-to-find materials and compounds.
Customer-specific custom designs, for example in defined geometries or compositions, are also possible because we offer short decision-making paths and direct communication as a family business. Expert employees with a chemical background provide personal advice on purities, processing instructions, and storage requirements—a relevant advantage, especially with a reactive metal like calcium. Contact us directly with your specific requirements.