2550
75-20-7
Cac2
43025
Industrial Mixture
Industrial Grade
Combustion-Supporting Gas
Yes
Sea
Support
Support
Wanding
Drums
25-50mm
China
289410
Product Description
**Calcium Carbide (CaC) - Key Applications and Functions**
Calcium carbide (CaC), commonly known as **carbide**, is a vital inorganic compound with significant industrial and practical value. Below are its primary applications and detailed explanations:
---
### 1. **Production of Acetylene (CH)**
- **Reaction Principle**: Calcium carbide reacts vigorously with water to produce acetylene gas and calcium hydroxide.
- **Applications**:
- **Metalworking**: Acetylene-oxygen flames (reaching temperatures above 3000°C) are used for welding, cutting, and thermal spraying of metals.
- **Chemical Feedstock**: Production of polyvinyl chloride (PVC), acetic acid, and acetone. Although ethylene-based processes are now dominant, acetylene remains critical for niche chemical syntheses.
- **Historical Use**: Fuel source for early mining lamps and signal lights.
---
### 2. **Metallurgical Industry**
- **Desulfurizing Agent**: In steelmaking, CaC reacts with sulfur to form calcium sulfide (CaS), reducing sulfur content in steel and improving ductility.
- **Reducing Agent**: Reduces metal oxides at high temperatures to aid in metal extraction (e.g., ferroalloy production).
---
### 3. **Agricultural Applications**
- **Fruit Ripening**: Acetylene released from CaC mimics ethylene (a plant hormone), accelerating the ripening of fruits like bananas and mangoes.
- **Soil Amendment**: The alkaline calcium hydroxide byproduct neutralizes acidic soils, though overuse must be avoided to prevent excessive alkalinity.
---
### 4. **Production of Calcium Cyanamide (CaCN)**
- **Fertilizer and Pesticide**: At high temperatures, CaC reacts with nitrogen gas to form calcium cyanamide, a slow-release nitrogen fertilizer and pesticide.
---
### 5. **Laboratory Uses**
- **Acetylene Source**: Provides acetylene for organic synthesis, combustion experiments, and gas chromatography.
- **Safety Note**: Acetylene has a wide explosive range (2.5-82% in air), requiring strict ventilation and flame precautions.
---
### 6. **Other Applications**
- **Carbon Source**: Acts as a reactive carbon donor in certain chemical reactions.
- **Emergency Lighting**: Historically used in carbide lamps, now largely replaced by battery-powered systems.
---
### **Safety Precautions**
- **Storage**: Keep in airtight, moisture-proof containers (contact with water releases flammable acetylene).
- **Handling**: Wear protective goggles and gloves to avoid skin/eye irritation from dust.
- **Acetylene Risks**: Highly flammable; ensure proper ventilation and avoid ignition sources.
Calcium carbide's versatility makes it indispensable across industries, but strict adherence to safety protocols is essential to mitigate risks.
Calcium carbide (CaC), commonly known as **carbide**, is a vital inorganic compound with significant industrial and practical value. Below are its primary applications and detailed explanations:
---
### 1. **Production of Acetylene (CH)**
- **Reaction Principle**: Calcium carbide reacts vigorously with water to produce acetylene gas and calcium hydroxide.
- **Applications**:
- **Metalworking**: Acetylene-oxygen flames (reaching temperatures above 3000°C) are used for welding, cutting, and thermal spraying of metals.
- **Chemical Feedstock**: Production of polyvinyl chloride (PVC), acetic acid, and acetone. Although ethylene-based processes are now dominant, acetylene remains critical for niche chemical syntheses.
- **Historical Use**: Fuel source for early mining lamps and signal lights.
---
### 2. **Metallurgical Industry**
- **Desulfurizing Agent**: In steelmaking, CaC reacts with sulfur to form calcium sulfide (CaS), reducing sulfur content in steel and improving ductility.
- **Reducing Agent**: Reduces metal oxides at high temperatures to aid in metal extraction (e.g., ferroalloy production).
---
### 3. **Agricultural Applications**
- **Fruit Ripening**: Acetylene released from CaC mimics ethylene (a plant hormone), accelerating the ripening of fruits like bananas and mangoes.
- **Soil Amendment**: The alkaline calcium hydroxide byproduct neutralizes acidic soils, though overuse must be avoided to prevent excessive alkalinity.
---
### 4. **Production of Calcium Cyanamide (CaCN)**
- **Fertilizer and Pesticide**: At high temperatures, CaC reacts with nitrogen gas to form calcium cyanamide, a slow-release nitrogen fertilizer and pesticide.
---
### 5. **Laboratory Uses**
- **Acetylene Source**: Provides acetylene for organic synthesis, combustion experiments, and gas chromatography.
- **Safety Note**: Acetylene has a wide explosive range (2.5-82% in air), requiring strict ventilation and flame precautions.
---
### 6. **Other Applications**
- **Carbon Source**: Acts as a reactive carbon donor in certain chemical reactions.
- **Emergency Lighting**: Historically used in carbide lamps, now largely replaced by battery-powered systems.
---
### **Safety Precautions**
- **Storage**: Keep in airtight, moisture-proof containers (contact with water releases flammable acetylene).
- **Handling**: Wear protective goggles and gloves to avoid skin/eye irritation from dust.
- **Acetylene Risks**: Highly flammable; ensure proper ventilation and avoid ignition sources.
Calcium carbide's versatility makes it indispensable across industries, but strict adherence to safety protocols is essential to mitigate risks.
