Hydrochloric acid

Hydrochloric acid is an aqueous solution of hydrogen chloride (HCl) , which belongs to monobasic inorganic strong acid and is widely used in industry. Hydrochloric acid is a colorless and transparent liquid with strong pungent smell and high corrosivity. Concentrated hydrochloric acid (mass fraction is about 37%) is highly volatile. Therefore, after the container containing concentrated hydrochloric acid is opened, the hydrogen chloride gas will volatilize and combine with the water vapor in the air to produce small droplets of hydrochloric acid, resulting in acid mist above the bottle mouth. Hydrochloric acid is the main component of gastric acid. It can promote food digestion and resist microbial infection.

Specification

Hydrochloric acid is colorless and irritating aqueous solution, which is volatile and has pungent smell. It is light yellow because it contains trace iron (iron oxide), free chlorine or organic matter. Strong acid, which can be mixed with water and ethanol in any ratio. It is highly corrosive, can neutralize with alkali, and has no effect with non-metallic substances such as phosphorus and sulfur.

Safety

Hydrochloric acid is toxic and highly corrosive. Contact of concentrated hydrochloric acid with human body can cause severe burns, and splashing into eyes will lead to permanent blindness. Contact with skin can produce dermatitis and photosensitization. Inhalation of hydrochloric acid vapor will cause cough, dysphagia, nausea, vomiting, extreme thirst, diarrhea, and even circulatory collapse and death. When contacting and using hydrochloric acid, especially concentrated hydrochloric acid, wear specified protective equipment to protect eyes and skin. Measures shall be taken to prevent hydrogen chloride gas from escaping and polluting the atmosphere and entering the body. Do not mix with sulfuric acid and nitric acid; It shall not be stored and transported together with alkali, metal powder, oxidant, cyanide and combustibles in contact with water. It shall be transported in accordance with the requirements of relevant dangerous goods transportation rules.

Application

Chemical cleaning with hydrochloric acid as the main agent has the advantages of strong force, fast speed, obvious effect, convenient use and low cost. It is suitable for carbon rope steel and copper, but it can not be used for chemical cleaning of austenitic stainless steel, titanium and other materials.
Basic chemical raw materials are used in petroleum, chemical industry, metallurgy, printing and dyeing, food and other industrial sectors.

Storage

Sealed and stored in a cool, dry and well ventilated warehouse. It shall be stored separately from alkali, metal powder, halogen (fluorine, chlorine, bromine), flammable or combustible materials, etc.

Document provided

TDS,COA,MSDS,B/L,Packing list.

Delivery information

Packing:Packaging and transportation of threaded glass bottles and plastic barrels.

Dangerous goods transport No.: UN 1789.

HS Code:2806100000