Macrocyclic corrosion inhibitors for steel in acid chloride environments
Journal Article
·
· Corrosion (Houston); (United States)
The effectiveness of phthalocyanines as acid corrosion inhibitors for steel were studied. Water soluble tetrasulfophthalocyanines are very poor corrosion inhibitors. Water insoluble tetraaminophthalocyanines serve as better corrosion inhibitors than the water soluble ones when the metal surface is coated with an adsorbed layer of the phthalocyanine. The inhibitor efficiency was still far too low to be of any significance. Water insoluble polymeric phthalocyanine coatings based on Fe(III) centers gave inhibitor efficiencies as high as 82%, as confirmed by both slow potentiodynamic technique and the AC impedance analysis. Polymerization was achieved by simple dip coating followed by heat treatment of the coated surface at 450 C in an inert atmosphere. The resulting coating is adherent and electrically conducting, thereby providing a unique set of conducting polymer inhibitors that can be used in acid environments.
- Research Organization:
- SRI International, Menlo Park, CA (USA); Naval Air Development Center, Warminster, PA (USA)
- OSTI ID:
- 5764309
- Journal Information:
- Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 45:1; ISSN CORRA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Macrocyclic compounds as corrosion inhibitors
Study of the influence of certain inhibitors on the tensile strength of steel during its corrosion in a system of hydrocarbons and electrolytes
AC impedance spectroscopy - A dynamic tool for the design of corrosion inhibitors
Journal Article
·
Mon Nov 30 23:00:00 EST 1998
· Corrosion
·
OSTI ID:305354
Study of the influence of certain inhibitors on the tensile strength of steel during its corrosion in a system of hydrocarbons and electrolytes
Journal Article
·
Fri Dec 31 23:00:00 EST 1965
· Za Tekh. Progr.; (United States)
·
OSTI ID:6092336
AC impedance spectroscopy - A dynamic tool for the design of corrosion inhibitors
Conference
·
Sun May 01 00:00:00 EDT 1988
· Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)
·
OSTI ID:7072720
Related Subjects
36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400201 -- Chemical & Physicochemical Properties
ALLOYS
CHEMICAL COMPOSITION
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COATINGS
CORROSION INHIBITORS
CORROSIVE EFFECTS
DYES
ENVIRONMENTAL EFFECTS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
ORGANIC COMPOUNDS
PHTHALOCYANINES
POLYMERIZATION
POLYMERS
STEELS
360105* -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400201 -- Chemical & Physicochemical Properties
ALLOYS
CHEMICAL COMPOSITION
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COATINGS
CORROSION INHIBITORS
CORROSIVE EFFECTS
DYES
ENVIRONMENTAL EFFECTS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
ORGANIC COMPOUNDS
PHTHALOCYANINES
POLYMERIZATION
POLYMERS
STEELS