1. Process for the preparation of epitaxial semiconductor, thermal oxidation, diffusion, etching, chemical vapor deposition (CVD) processes hydrochloric acid, it can be used for the light emitting diodes, lasers and optical fiber production. It is one of the important materials needed for the electronics industry LSI. 2, is the manufacture of ammonium chloride, calcium chloride, zinc chloride, copper chloride, basic aluminum chloride, ferric chloride liquid and other raw materials. In the synthesis of dyes and pharmaceutical intermediates. For diazotization amino, nitro group into an amino group, converted to the sulfonic acid sodium salt. Also used in the synthesis of PVC-hexene, neoprene, ethyl chloride. Also for the hydrometallurgical (such as decomposition of tungsten ore production of tungsten acid, etc.), metal surface treatment (as copper pickling rust). In the printing industry, for fabric bleach pickling, mercerized and so on. In addition, for the regeneration of ion exchange resins, sugar and leather industry. Used as acid cleaning corrosion inhibitors, can be used in conjunction with hydrogen peroxide. Hydrochloric acid-based chemical cleaning agents has the effect of strong, fast, the effect is obvious, easy to use and low cost required for carbon steel, copper, but not for austenitic stainless steel, titanium and other materials chemical cleaning. The main wholesale hydrochloric acid for the electronics industry, for etching, passivation, epitaxy process in the production of integrated circuits. Also used for metal smelting and the light guide communications. 5. used for making dyes, perfumes, pharmaceuticals, various chlorides and corrosion inhibitors. Because we are professional so we do better quality at reasonable prices faith-based quality assurance toxicological properties of hydrochloric acid which: Health hazards: exposure to steam or smoke, can cause acute poisoning: the emergence of conjunctivitis hydrochloric acid manufacturers, nose and oral mucosa burning sensation, epistaxis, gingival bleeding, bronchitis and so on. Coverage can cause gastrointestinal burns, ulcers, may cause gastric perforation, peritonitis. Eye and skin contact can cause burns. Chronic effects: Long-term exposure effects of hydrochloric acid, causing chronic rhinitis, chronic bronchitis, dental erosion and skin damage. Environmental hazards: hazard to the environment, water and soil pollution. Explosion hazard: This product is flammable. With strong corrosive, strong irritant, can cause the body burns. Hydrochloric acid use, Zhengzhou Jinshui hydrochloric acid, Zhengzhou Longda Chemical (Views) provided by the Zhengzhou Longda Chemical Products Limited. Road Zhiyuan, temper forward. Zhengzhou Longda Chemical Products Co., Ltd. (www.longdahuagong.com/) aims to become and you win symbiosis, strategic partners to move forward, more determined to become the most influential of inorganic acid companies, and you leap together to success !