Ngày cập nhật:05 Jul, 2018

Đặc tính:Khí C2H2 không màu, có mùi tỏi đặc trưng, bắt lửa cực nhanh và tạo ngọn lửa cháy đạt nhiệt độ cao kỷ lục (3.300°C).

Lĩnh vực ứng dụng:High-temperature metal welding & cutting (>3,300°C), chemical & polymer synthesis (plastics, paint, rubber), laboratory analysis (AAS equipment), and portable lighting (mines, lighthouses).

Các dòng sản phẩm:Khí công nghiệp (hàn cắt) và Khí tinh khiết (phân tích/thí nghiệm)

Acetylene Gas

ACETYLENE GAS (C₂H₂) & INDUSTRIAL APPLICATIONS

Acetylene gas (C₂H₂) is a colorless, highly flammable hydrocarbon gas widely utilized as an industrial fuel. In its pure form, it is odorless and unstable.

Commercial acetylene possesses a distinct garlic-like odor due to trace impurities such as phosphine (PH₃) and hydrogen sulfide (H₂S).

⚙️ History & Production Methods

History: Discovered in 1836 by Edmund Davy and named “acétylène” in 1860 by French chemist Marcellin Berthelot.

Production: Industrially manufactured via the hydrolysis of calcium carbide (CaC₂) at extreme temperatures (~2000°C) or partial combustion of methane (CH₄):

          CaC₂ + 2H₂O → Ca(OH)₂ + C₂H₂↑
        

🔥 Key Applications of Acetylene Gas

Oxy-Acetylene Welding & Cutting: Combustion with oxygen generates flame temperatures exceeding 3,300°C (3,600 K), releasing 11.8 kJ/g for efficient metal cutting.
Portable Lighting: Historically used in carbide lamps for miners, lighthouses, and remote area illumination.
Chemical Synthesis: Feedstock for polyethylene, acrylic fibers, plastics, resins, and organic polymers.

Oxy-Acetylene gas flame used in industrial metal cutting

🛡️ Safety & Handling Regulations

Operating Pressure: Working pressure must not exceed 101 kPa (15 psig) to prevent explosive decomposition.
Storage in Solution: Dissolved in acetone or dimethylformamide within cylinders packed with porous mass.
Upright Position: Cylinders must remain upright during transport and operation to prevent solvent leakage.
Avoid Copper Fittings: Acetylene reacts with pure copper to form explosive acetylides; copper piping is strictly prohibited.