Hai Collection, Lower Volume
Radical: Salt (lǔ)
Entry: Cuo
Kangxi Stroke Count: 21
Page 1507, Entry 29
Tang Rhymes (Tangyun): Pronounced zuo (rising tone).
Collected Rhymes (Jiyun), Rhyme Meetings (Yunhui), and Orthodox Rhymes (Zhengyun): Pronounced cai (rising tone), sound cuo (rising tone).
Explaining Graphs (Shuowen): Saltiness. In the Henei region it is called quan (rising tone), and in the Pei region the speech is like cuo (rising tone).
Book of Rites (Liji), Songs of Ceremonies (Quli): Salt is called xiancuo.
Commentary: Great saltiness is like cuo, the intensity of salty flavor.
Also, Collected Rhymes (Jiyun): Pronounced shi (rising tone), sound quan (rising tone). The meaning is the same.
Collected Rhymes (Jiyun): Also written as quan (rising tone). Written separately as cuo (rising tone), which is incorrect.