What's the difference between parkesine and pyroxylin?
Parkesine
Definition:
(n.) A compound, originally made from gun cotton and castor oil, but later from different materials, and used as a substitute for vulcanized India rubber and for ivory; -- called also xylotile.
Example Sentences:
Pyroxylin
Definition:
(n.) A substance resembling gun cotton in composition and properties, but distinct in that it is more highly nitrified and is soluble in alcohol, ether, etc.; -- called also pyroxyle.
Example Sentences:
(1) Collodion is a solution of pyroxylin in a solution of 75% ether and 25% alcohol.