Patent ID: 11858867
Assignee: CHENGDU BESMILE MEDICAL TECHNOLOGY CORP. LTD.
Field: Pharmaceuticals (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 17:
18. The zirconia treatment method according to claim 13, wherein the color masking liquid has a formula comprising, in mass percentages, 95-98% of a mother liquor, 1.3-1.6% of an alcohol, 0.03-3.40% of potassium nitrate, 0.1-0.3% of yttrium chloride and 0.3-0.4% of citric acid; and the mother liquor has a formula comprising, in mass percentages, 18-23% of ethylene glycol, 1-5% of gluconic acid, 1-3% of citric acid, 1-3% of praseodymium nitrate, and water.