Hydrochloric acid belongs to precursor chemicals, which need to be filed with the local public security organ, and then the precursor registration certificate should be obtained. Only with a certificate can you buy from a qualified manufacturer.

A small amount can be bought in chemical reagent shops and a large amount can be bought in chemical plants (inorganic acids). If you don't need a ticket, you can buy it without formalities. If you have been named as an invoice, you must have a certificate of use of dangerous goods. Production also needs a dangerous goods use certificate.

To apply for the purchase certificate of sulfuric acid and hydrochloric acid, you need to bring the following documents to the anti-drug brigade of the local public security bureau.