What Is the Connection Between Sulfuric Acid and Hydrochloric Acid?

Hydrochloric acid ( ¹ ) is an aqueous solution of hydrogen chloride (HCl) ^[2] , which belongs to a monobasic inorganic strong acid and has a wide range of industrial applications. Hydrochloric acid is a colorless and transparent liquid with a strong pungent odor and high corrosiveness. Concentrated hydrochloric acid (mass fraction is about 37%) is extremely volatile, so when the container containing concentrated hydrochloric acid is opened, the hydrogen chloride gas will volatilize and combine with water vapor in the air to produce small hydrochloric acid droplets, which will cause acid to appear above the bottle mouth fog. Hydrochloric acid is the main component of gastric acid, which can promote food digestion and resist microbial infections.

Hydrochloric acid ^[1]

Method name

Hydrochloric acid storage method

Store in a cool, ventilated warehouse. The storage temperature does not exceed 30 ° C, and the relative humidity does not exceed 85%. Keep container tightly closed. It should be stored separately from alkalis, amines, alkali metals, and (flammable) combustible materials. The storage area should be equipped with spill emergency treatment equipment and suitable containment materials.

The UN dangerous goods number of hydrochloric acid is 1789, which needs to be indicated on the container in which it is placed. ^[37]

Waste disposal method: neutralize with lye-lime water to generate sodium chloride and calcium chloride, dilute with water and discharge into the wastewater system.

Transportation method of hydrochloric acid

Dangerous Goods Number: 81013

UN Number: 1789

Packing category: O52

Packaging method: Ordinary wooden box or semi-grate wooden box outside acid-resistant altar or ceramic bottle; Ordinary wooden box or semi-grate wooden box outside glass bottle or plastic barrel (tank); Ordinary wood outside frosted glass bottle or threaded glass bottle Boxes; ordinary wooden boxes outside threaded glass bottles, iron capped glass bottles, plastic bottles or metal barrels (tanks).

Note for transportation: The time limit for railway transportation of this product is to use a rubber-lined steel tank truck or a special plastic company-owned tank truck for shipment. Prior to shipment, it must be reported to the relevant authorities for approval. The railway transportation shall be carried out in strict accordance with the dangerous goods installation table in the "Dangerous Goods Transportation Rules" of the Ministry of Railways. The package should be complete at the time of shipment and the loading should be secure. During transportation, ensure that the container does not leak, collapse, fall, or damage. It is strictly prohibited to mix and transport with alkalis, amines, alkali metals, flammables or combustibles, and edible chemicals. The transportation vehicle should be equipped with leakage emergency treatment equipment during transportation. During transportation, it should be protected from direct sunlight, rain and high temperature. When transporting by road, follow the prescribed route and do not stop in residential areas and densely populated areas. ^[1]