CHEMICAL AND GALVANIC CORROSION PROPERTIES OF HIGH-PURITY VANADIUM

Technical Report · Sat Jul 01 00:00:00 EDT 1961

OSTI ID:4791113

Kenahan, C B; Schlain, D; Acherman, W L

Vanadium is subject to only light corrosion in phosphoric acid at temperatures up to 60 deg C and has a moderate corrosion rate in this acid at 100 deg C. It is relatively corrosion resistant in sulfuric and hydrochloric acids up to 60 deg C but corrodes rapidly at 100 deg C. It corrodes rapidly in dilute nitric acid at 35 deg C. Vanadium is almost inert in 10% solutions of formic, acetic, lactic, tartaric, and citric acids; in 9% oxalic acid it corrodes slowly up to 60 deg C and rapidly at 100 deg C. Vanadium is resistant to corrosion in substitute ocean water, tapwater, and in 3% sodium chloride and 10% sodium hydroxide solutions. It is readily attacked by 20% ferric chloride, 20% cupric chloride, and 5% mercuric chloride solutions. Vanadium is protected by contact with magnesium, aluminum, and steel SAE 4130 in substitute ocean water, by magnesium and aluminum in 3% sodium chloride solution, and by magnesium in tapwater. Vanadium protects copper in substitute ocean water. When vanadium and stainless steel are coupled in sulfuric acid solutions, both metals are usually unaffected by contact, whereas the corrosion rate of titanium in sulfuric acid is greatly reduced by contact with vanadium. (auth)

• Research Organization: Bureau of Mines. College Park Metallurgy Research Center, Md.
• NSA Number: NSA-16-027589
• OSTI ID: 4791113
• Report Number(s): BM-RI-5990
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-62
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

METALS, CERAMICS, AND OTHER MATERIALS
ACETIC ACID
ALUMINUM
CITRIC ACID
COPPER CHLORIDES
CORROSION
FORMIC ACID
HYDROCHLORIC ACID
IRON CHLORIDES
LACTIC ACID
MAGNESIUM
MERCURY CHLORIDES
NITRIC ACID
ORGANIC ACIDS
PHOSPHORIC ACID
SEA
SODIUM CHLORIDES
SODIUM HYDROXIDES
SOLUTIONS
STAINLESS STEELS
SULFURIC ACID
TARTARIC ACID
TITANIUM
VANADIUM
WATER