Mineral Oil, Rectal
» Mineral Oil, Rectal, is Mineral Oil that has been suitably packaged.
Packaging and storage— Preserve in tight, light-resistant, single-unit containers. No storage requirements specified.
A: Infrared Absorption 197F.
B: It meets the requirements of the test for Viscosity.
Specific gravity 841: between 0.845 and 0.905.
Viscosity 911 Perform the test at 40.0 ± 0.1 using a suitable capillary viscometer: the kinematic viscosity is between 34.5 and 150.0 mm2·s-1.
Acidity— Add 20 mL of boiling water to 10 mL of Mineral Oil, Rectal, and shake vigorously for about 1 minute. Allow to cool, and draw off the separated water. To 10 mL of the filtrated aqueous layer add 0.1 mL of phenolphthalein TS: the solution does not produce a pink color. Not more than 1.0 mL of 0.01 N sodium hydroxide is required to change the color to pink.
Auxiliary Information— Please check for your question in the FAQs before contacting USP.
Topic/Question Contact Expert Committee
Monograph Hong Wang, Ph.D.
(EM205) Excipient Monographs 2
Reference Standards Lili Wang, Technical Services Scientist
USP32–NF27 Page 2985
Pharmacopeial Forum: Volume No. 33(5) Page 964