MATERIAL PROFILE / Individual substance
Calcium oxide
CAS: 1305-78-8
Function: Individual chemical research reference
Compare this material →This material’s published information has not yet been verified by a human reviewer.
Human verification concerns the stated information and scope. It is separate from an EcoSafe score, certification or safety approval.Overview
Individual chemical identity in the common-material baseline. Chemical identity only; purity, grade and supplier composition require separate documentation. Category placement is an editorial research grouping, not a suitability recommendation. Monomers, precursors and curing ingredients are not finished resins or ready-to-use coatings.
Chemistry: Calcium oxide
Listed supplier: Supplier not selected · substance baseline
Chemical identity
- Molecular formula
- CaO
- Molecular weight
- 56.08 g/mol (identity reference)
- IUPAC name
- oxocalcium
- PubChem CID
- 14778
Chemical identity only; purity, grade and supplier composition require separate documentation.
Identity snapshot: 2026-11-02 UTC.
CAS identity reference ↗Core data coverage: 43.75%
7 of 16 defined fields are recorded with a source. This measures structured information currently on this site, not the completeness of every linked PDF. Missing fields remain in the denominator.
Coverage is separate from scientific accuracy, human verification and EcoSafe assessment. Molecular fields may not apply to a grade or family; they are not filled from another material to increase its score.
See the 16 fields and remaining gaps
| Core field | Recorded information |
|---|---|
| Chemical name | Calcium oxide Source ↗ |
| CAS number | 1305-78-8 Source ↗ |
| Synonyms | Not yet recorded / may not apply |
| Molecular formula | CaO Source ↗ |
| Molecular weight | 56.08 Source ↗ |
| IUPAC name | oxocalcium Source ↗ |
| PubChem CID | 14778 Source ↗ |
| Identity sources | https://pubchem.ncbi.nlm.nih.gov/compound/14778 Source ↗ Source reference recorded for this record's scope; source freshness is a separate review. |
| Uses | Not yet recorded / may not apply |
| Hazards | Not yet recorded / may not apply |
| Appearance | Not yet recorded / may not apply |
| Density | Not yet recorded / may not apply |
| Melting point | Not yet recorded / may not apply |
| Boiling point | Not yet recorded / may not apply |
| Solubility | Not yet recorded / may not apply |
| SDS/TDS | Not yet recorded / may not apply |
Country production & commodity context
Country totals do not identify the origin of a supplier grade or shipment. All figures await human verification.
Lime commodity group · 2025 · commodity context
Quicklime, hydrated lime and refractory dead-burned dolomite combined; not separate output for either chemical.
Reported world total: 420,000 thousand metric tons. Country rows are rounded and may not sum to the world total.
| Country | commodity context | Share of reported world total |
|---|---|---|
| People's Republic of China | 310,000 thousand metric tons | ≈ 73.8% |
| India | 17,000 thousand metric tons | ≈ 4% |
| United States of America | 15,000 thousand metric tons | ≈ 3.6% |
| Russia | 12,000 thousand metric tons | ≈ 2.9% |
| Brazil | 8,200 thousand metric tons | ≈ 2% |
| Japan | 5,900 thousand metric tons | ≈ 1.4% |
| South Korea | 5,000 thousand metric tons | ≈ 1.2% |
| Germany | 4,800 thousand metric tons | ≈ 1.1% |
| Iran | 4,000 thousand metric tons | ≈ 1% |
| Turkey | 4,000 thousand metric tons | ≈ 1% |
| France | 3,500 thousand metric tons | ≈ 0.8% |
| Italy | 2,500 thousand metric tons | ≈ 0.6% |
| Australia | 1,900 thousand metric tons | ≈ 0.5% |
| Spain | 1,700 thousand metric tons | ≈ 0.4% |
| Canada | 1,600 thousand metric tons | ≈ 0.4% |
| Malaysia | 1,400 thousand metric tons | ≈ 0.3% |
| Bulgaria | 1,300 thousand metric tons | ≈ 0.3% |
| Poland | 1,300 thousand metric tons | ≈ 0.3% |
| United Kingdom | 1,300 thousand metric tons | ≈ 0.3% |
| Belgium | 1,100 thousand metric tons | ≈ 0.3% |
| Ukraine | 1,100 thousand metric tons | ≈ 0.3% |
| South Africa | 1,000 thousand metric tons | ≈ 0.2% |
USGS Mineral Commodity Summaries 2026 · LIME ↗ · accessed 2026-11-02
Source checked · awaiting human verification. Shares are calculated from rounded source values. Broader commodity groups are not exact chemical or grade output.
Documents & supplier information
Archived copies are dated references. Confirm the latest document for your supplier, grade and region.
An exact-grade regional SDS has not yet been archived for this material.
Supplier and range references
Original supplier / material reference ↗Suppliers & makers
Confirm grade, composition, current availability and production location directly with the supplier.
No material-specific supplier match has been added yet.
Related supplier-family research
Active Minerals, EP Minerals, INCOA, SEPM, Solvay · Performance fillers / minerals
A family research lead, not a confirmed supplier of this exact substance.
Family reference ↗Documents, origin & assessment
- Supplier documents
- See Documents & supplier information above for linked references and gaps.
- Manufacturing origin
- Not verified
- EcoSafe assessment
- Not assessed · no numerical points or certification
Identity data and category placement do not establish safety, suitability or environmental performance. Obtain current grade-specific documentation.
Industries & categories
Industrial Chemicals
Industrial Minerals · Inorganic Chemicals
Plastics & Rubber Polymers
Polymer Additives & Processing Aids
Sources
Original material source ↗Library source check: November 2, 2026. Sources may require supplier access.