Calcium oxide, 99.995%
Buy Calcium oxide, 99.995% (CAS 1305-78-8) from Zemixal. Request a quote with price, lead time and documents. Packs from 1 g.
About Calcium oxide, 99.995%
Zemixal supplies Calcium oxide, 99.995% within its laboratory Chemicals & Reagents portfolio. For your records (99.995%), the material is defined by CAS 1305-78-8, formula CaO and molar mass 56.08 g/mol. It is described as white powder.
Use cases we see most often
- Ceramics & glass
- Metallurgy & plating
- Fuels & lubricants
Safe handling
Physical constants on file: boiling point 2850 °C and density 3.3 g/mL at 25 °C. Classified under GHS with signal word Danger and hazard statements H302, H314, H315 and H318. Read the SDS before first use. For transport it ships as UN UN 1910.
Standard pack sizes are 1 g and 5 g, and custom quantities are quoted on request. Every shipment includes a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Typical uses
- Ceramics & glass
- Metallurgy & plating
- Fuels & lubricants
Applications
Specifications and identifiers
| Product name | Calcium oxide, 99.995% |
|---|---|
| Catalogue number | ZX-000040 |
| CAS number | 1305-78-8 |
| IUPAC name | oxocalcium |
| Molecular formula | CaO |
| Molar mass | 56.08 g/mol |
| Exact mass | 55.9575 |
| Purity / assay | 99.995% |
| Physical form | Powder |
| Appearance | White powder |
| Boiling point | 2850 °C |
| Density | 3.3 g/mL at 25 °C |
| H-bond donors / acceptors | 0 / 1 |
| Topological polar surface area | 17.1 Ų |
| HS code | 28259090 |
| UN number | UN 1910 |
| InChIKey | ODINCKMPIJJUCX-UHFFFAOYSA-N |
| SMILES | O=[Ca] |
| PubChem CID | 14778 |
| Synonyms | Calxyl, Gebrannter kalk, Unslaked lime, Calcium monoxide, Calx usta, Chaux vive, Quick lime, Rhenosorb C, Rhenosorb F, Calcium oxide (CaO), Desical P, Lime, burned |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Danger
- H302Harmful if swallowed
- H314Causes severe skin burns and eye damage
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements P260, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P319, P321, P330, P332 + P317, P362 + P364, P363, P403 + P233, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 1 g | Quoted on request | |
| 5 g | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
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