Flexible Collodion
» Prepare Flexible Collodion as follows:
| Camphor | 20 g |
| Castor Oil | 30 g |
| Collodion, a sufficient quantity, to make | 1000 g |
Weigh the ingredients, successively, into a dry, tared bottle, insert the stopper in the bottle, and shake the mixture until the camphor is dissolved.
Packaging and storage—
Preserve in tight containers, at a temperature not exceeding 30
, remote from fire.
, remote from fire.
Labeling—
The label bears a caution statement to the effect that Flexible Collodion is highly flammable.
Identification—
A:
When exposed to air in a thin layer, it leaves a transparent, tenacious film. The film exhibits a distinct odor of camphor. The film of pyroxylin so obtained burns rapidly, with a yellow flame.
B:
When mixed with an equal volume of water, it yields a viscid, stringy mass of pyroxylin.
Specific gravity 
841
:
between 0.770 and 0.790.
841:
between 0.770 and 0.790.
Alcohol content—
Proceed as directed in the test for Alcohol content under Collodion. The content of C2H5OH is between 21.0% and 25.0%.
Auxiliary Information—
Please check for your question in the FAQs before contacting USP.
| Topic/Question | Contact | Expert Committee |
|---|---|---|
| Monograph | Jeanne H. Sun
Assistant Scientific Liaison 1-301-816-3361 |
(CMP2010) Compounding |
USP35–NF30 Page 2769