| Formula / Notation | CaC2 |
|---|---|
| CAS Number | 75-20-7 |
| Molecular Weight | 64.10 |
| Melting Point | 2160 °C |
| Boiling Point | 2160 °C (decomposes) |
| Density | 2.22 g/cm³ |
| Solubility | Reacts with water |
| Appearance | grey to black crystalline solid |
| Also Known As | calcium acetylide; acetylene stone; calcium dicarbide |
| Category | Inorganic Compounds |
What is Calcium carbide?
Calcium carbide (CaC2) is an inorganic compound produced by heating calcium oxide with coke in an electric arc furnace at approximately 2000 °C. It is the primary industrial source of acetylene gas and is used in the production of calcium cyanamide fertiliser. When calcium carbide reacts with water, it produces acetylene and calcium hydroxide.
Formula & Notation
IUPAC Name: calcium acetylide
Other Names / Synonyms: calcium acetylide; acetylene stone; calcium dicarbide
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 2160 °C |
| Boiling Point | 2160 °C (decomposes) |
| Density | 2.22 g/cm³ |
| Molecular Weight | 64.10 |
| Solubility | Reacts with water |
| Appearance | grey to black crystalline solid |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Calcium carbide (CaC2) is an inorganic compound produced by heating calcium oxide with coke in an electric arc furnace at approximately 2000 °C. It is the primary industrial source of acetylene gas and is used in the production of calcium cyanamide fertiliser. When calcium carbide reacts with water, it produces acetylene and calcium hydroxide.
Production of acetylene gas for welding and cutting. Synthesis of calcium cyanamide (fertiliser). Organic synthesis via acetylene chemistry. Carbide lamps and lighting. Ripening agent for fruits (via ethylene generated from acetylene).
Reacts violently with water producing flammable acetylene gas. Keep away from moisture. Flammable and explosive hazard. Causes chemical burns. Store in dry, sealed containers. Wear PPE — gloves, goggles, respiratory protection. Consult SDS before use.
The formula or notation for Calcium carbide is: CaC2