Compared with simplified characters, the traditional characters of basic characters are different in radical. Please look at the comparison between traditional Chinese characters and simplified Chinese characters:

Pinyin of alkali:

jian an period at the end of the han dynasty

Description of alkali:

(1) (name) The general term for hydroxyl-containing compounds. This substance has astringent taste; Can make litmus test paper blue; Can be neutralized into salt by acid.

(2) (Name) Sodium carbonate containing decameron crystal water; Colorless crystal; Used as detergent; It is also used to neutralize the sour taste in hair.

(3) (moving) eroded by salt and alkali: this wall is completely gone.