Description
Calcium oxide is an extra pure inorganic oxide supplied at a minimum assay of 96 %, with empirical formula CaO, CAS number 1305-78-8 and molar mass 56,08 g/mol. The material presents a density of 3,37 g/cm³ and a boiling point of 2850 °C, making it a robust choice for demanding laboratory drying and sorption work. Its high thermal stability supports applications that require elevated operating temperatures without rapid degradation of the solid. Laboratories engaged in performance materials, filtration media preparation and general inorganic synthesis will find the defined purity and physical data useful for method development and routine use. The product is available from manufacturer Carl ROTH as an extra pure calcium oxide suited to controlled desiccation and related analytical workflows. Clear specification of CAS, EG number and bulk properties helps ensure consistent selection across multi-site laboratories and quality systems.
This article is part of Sorbents, silica gel & ion exchangers, in SPE & sample preparation.
Key features
- Assay: 95.0-100.5 %
- In HCl insoluble matter: ≤1.0 %
- Loss on ignition: ≤10.0 %
- Fluoride (F): ≤0.005 %
- Arsenic (As): ≤0.0003 %
- Lead (Pb): ≤0.0002 %
- Barium (Ba): ≤0.03 %
- Iron (Fe): ≤0.05 %
- Mg and alkali salts: ≤3.6 %
- Water: ≤1.0 %
- CAS number: 1305-78-8
- Pack sizes: 500 g, 1 kg, 5 kg, 2.5 kg
- EG nr.: 215-138-9
- Purity: min. 96 %, extra pure
- Molar mass: 56,08 g/mol
- Density: 3,37 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
DangerHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Calcium oxide, min. 96 %, extra pure, 500 g, plastic
What is this article?
Calcium oxide, min. 96 %, extra pure, 500 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Sorbents, silica gel & ion exchangers, inside SPE & sample preparation, in Chromatography equipment.
Loose sorbent, silica gel and ion-exchange resin are the phases bought in bulk to pack a column or to stir into a solution. Particle size and activity, or the ion-exchange capacity, are the specification. A TLC silica and a flash silica of different particle sizes are not the same separation.
Solid-phase extraction holds a compound on a sorbent while the rest of the sample is washed away, then releases it in a small volume. The sorbent, the bed mass and the solvents are the method. Silica, ion exchangers and polymer phases do different jobs. A flash column is the same idea scaled toward purification rather than trace cleanup. The molecules are on PubChem, named by IUPAC.
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The category is SPE & sample preparation. The sub-category is Sorbents, silica gel & ion exchangers. The catalogue is Chromatography equipment.
Shelves beside this one are SPE cartridges & columns and Flash, empty & glass chromatography columns.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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