Interfacial activity of mesoporphyrin IX and some derivatives

Journal Article · Mon Jun 01 00:00:00 EDT 1953 · J. Colloid Sci.; (United States)

DOI:https://doi.org/10.1016/0095-8522(53)90064-6· OSTI ID:7219941

Dunning, H N

The pendent-drop method has been used to study the interfacial aging of solutions of mesoporphyrin IX, its dimethyl ester, and the vanadium complex of the dimethyl ester. Mesoporphyrin IX dimethyl ester in benzene or chloroform exhibited moderate interfacial activity at the water interface. The free acid and the vanadium complex in benzene solutions were considerably more active than the ester. The interfacial activity of the esters increased with the alkalinity of the aqueous phase. This increase is attributed to alkaline hydrolysis of the ester to form the more active acid Mesoporphyrin IX and the vanadium complex formed complete solid films after short aging periods at the benzene-water interface Mesoporphyrin IX dimethyl ester formed no solid film at the water-chloroform interface and little solid film upon extended aging at the benzene-water interface.

• Research Organization: Bureau of Mines, Bartlesville, OK
• OSTI ID: 7219941
• Journal Information: J. Colloid Sci.; (United States), Journal Name: J. Colloid Sci.; (United States) Vol. 8:3; ISSN JCSCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
CARBOXYLIC ACIDS
ESTERS
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INTERFACES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PORPHYRINS
SURFACE PROPERTIES
SURFACE TENSION