Question
Posted on: March 6 2013A STEARAATCR è me with problems: stearic acid 17g Aqua 11g Glycerol 69g Sol ammoniae BP5 3g
Answer
(with help of APR. H. Van der Meersch, CFI-CIP APB)
This composition is about this of the STEARAATCR è me of the FN V. In the original formula, the small for water are 12g, for glycerin 70g. The formula of the ammonium STEARAATCR è me in the NF 5 is the same as this in the NF 4.
In The latter, ammonia of the Ph Belg 5 is used. The definition in the Ph Belg 5 is: Solutio ammoniae contains 16.0 to 17.0% NH3 (M.G. = 17,03). It corresponds to the ammonia solution denoted by R in the Pharmacopoeia, has a density of 0.93 and a molarity of 9.6 M.