High-purity hydrogen chloride gas is widely used for removing metal impurities and hydroxyl groups in quartz sand purification. Through high-temperature chlorination purification and surface modification, it significantly improves the purity, optical performance, and mechanical strength of quartz products, making it a core process gas for the optical fiber, photovoltaic, and semiconductor industry chains. This product features advantages such as ultra-high purity and can meet various customer requirements for packaging and cylinder connections.