Industrial hydrochloric acid usually make chlorine and hydrogen in the cylinders had embalmed years after the chemical reaction of hydrogen chloride, and then poured into water. Because the chemical reaction time will produce some ferric part magazines, so the yellow color rendering. Industrial hydrochloric acid concentration of hydrochloric acid is actually a lot used in industrial production, it's alias called salt with sulfuric acid, solder syrup. Characters industry rather special and ordinary hydrochloric acid, hydrochloric acid, hydrochloric acid concentration of both the high and pure, colorless and transparent, and that is a fuming liquid. Volatile gases out of the industrial hydrochloric acid irritating and corrosive, harmful to plants and animals. Industrial hydrochloric acid and hydrochloric acid content reaches thirty-one to thirty-seven%. Hydrochloric acid itself is a strong inorganic acid, the skin and the fibers have a very corrosive. Although its nature makes no good for a lot of substance, but its industrial use is a very big help. Not only industrial hydrochloric acid can be used to make dyes, pharmaceuticals, leather and chemical industry, but also for the production of our daily needs of plating and sugar industries, is an indispensable material of human life, but also for the national economy, industrial hydrochloric acid also has a very big help. Therefore, industrial hydrochloric acid in social status is not to be underestimated, we understand their performance, it can be a good benefit society. 

palabras clave: Industrial hydrochloric acid, hydrochloric acid characteristic industry, the role of industrial hydrochloric acid,