Acetylene Carbon Black: Properties, Applications & Packaging

Common carbon black types include industrial furnace black, channel black, thermal black, high-temperature graphitized carbon black, and acetylene black. Acetylene black is a high-performance carbon black produced by thermally cracking purified acetylene gas at high temperatures in an oxygen-free environment, followed by cooling and collection.

Key Specifications

• English Name: Acetylene Carbon Black
• Molecular Formula: C
• Molecular Weight: 12.01
• Appearance: Pure black powder and granular
• Quality Standard: GB/T3782-2006
• Particle Size: 35-45nm
• Oil Absorption Value: 220-330ml/100g

Unique Characteristics

Compared to other carbon blacks, acetylene black offers:

• Lightweight and low specific gravity
• Large specific surface area and strong adsorption capacity
• Stable chemical properties
• Good surface activity and high conductivity
• High purity with low ash and volatile content

Granular acetylene black provides advantages such as smaller volume, easier transportation, reduced dust pollution, improved working environment, and better flowability and dispersibility compared to powdered acetylene black.

Main Applications

Acetylene black is primarily used for conductivity, thermal conductivity, coloring, and reinforcement. Its main applications include:

1. Manufacturing dry batteries to improve conductivity, increase discharge capacity, and extend discharge time.
2. Battery plates, including lead-acid batteries, lithium batteries, and lithium-ion batteries.
3. Conductive and antistatic rubber, silicone, and plastics with low specific gravity, good reinforcement, corrosion resistance, processability, and easy control of conductivity.
4. Cable shielding materials, accessories, and wrapping materials.
5. Specialty tires and tire capsules for reinforcement and thermal conductivity, with vulcanized rubber exhibiting high modulus and hardness and excellent physical properties.
6. Telecommunication fax paper to prevent static electricity.
7. Electronic components and encapsulation materials.
8. Electromagnetic wave insulation and gas dispersion electrodes.
9. Catalyst materials for enhanced activity.
10. Microwave absorption materials.
11. Conductive and antistatic specialty paints, coatings, and adhesives.
12. Glass beads.
13. Pigments, and more.

Packaging and Storage Conditions

Acetylene black is a non-hazardous material but has hygroscopic properties. It is packaged in three-layer kraft paper or woven plastic bags and should be stored in a cool, dry, and well-ventilated warehouse. Keep away from fire sources and oxidizing agents. Avoid moisture, hooks, pulls, drops, throws, and heavy pressure. In case of leakage, do not mix spilled carbon black with the product. It is non-toxic, but wear a mask and work clothes during handling to prevent inhalation. Wash and change clothes after work to maintain cleanliness. In case of fire, use water or other fire extinguishers.