Cetyl Esters Wax
(see' til es' ters).
» Cetyl Esters Wax is a mixture consisting primarily of esters of saturated fatty alcohols (C14 to C18) and saturated fatty acids (C14 to C18).
Packaging and storage— Preserve in well-closed containers, in a dry place, and prevent exposure to excessive heat.
Melting range, Class II 741: between 43 and 47.
Acid value 401: not more than 5.
Iodine value 401: not more than 1.
Saponification value 401: between 109 and 120.
Paraffin and free acids— A 1-g portion dissolves completely in 50 mL of boiling alcohol and the solution is neutral or acid to moistened litmus paper.
Auxiliary Information— Please check for your question in the FAQs before contacting USP.
Topic/Question Contact Expert Committee
Monograph Robert H. Lafaver, M.S.
Scientific Liaison
(EXC2010) Monographs - Excipients
USP35–NF30 Page 1752