Accession Number : ADA294432

Title :   The Role of Oceanospirillum Exopolymer in Marine Copper Corrosion,

Corporate Author : NAVAL RESEARCH LAB STENNIS SPACE CENTER MS

Personal Author(s) : Angell, Peter ; Sonnerson, Anders ; White, David. C. ; Wagner, Patricia A. ; Little, Brenda J.

PDF Url : ADA294432

Report Date : MAY 1995

Pagination or Media Count : 10

Abstract : The marine bacterium Oceanospirillum produces copious amounts of exopolymer when grown on copper surfaces and has been shown to be involved in the corrosion of 99% copper. A study was undertaken to determine the nature of the exopolymer and its possible role in corrosion processes. Oceanospirillum was grown in small laminar flow cells with copper and 316 stainless steel as substrata. Exopolymer was harvested, purified, quantified and chemically characterized. Copper promoted greater polymer production than stainless steel. Exopolymers from both substrata contained glucose with no other sugar monomers or uronic acids.

Descriptors :   *BACTERIA, *SURFACES, *COPPER, PRODUCTION, CORROSION, CELLS, POLYMERS, STAINLESS STEEL, ELECTROCHEMISTRY, FOULING, MONOMERS, LAMINAR FLOW, SEA WATER, SUGARS, BIODETERIORATION, URONIC ACIDS.

Subject Categories : Biochemistry
      Physical Chemistry
      Microbiology
      Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE