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ASM Handbook

Corrosion: Environments and Industries

Edited by
S.D. Cramer
S.D. Cramer
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B.S. Covino, Jr.
B.S. Covino, Jr.
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ASM International
Volume
13C
ISBN electronic:
978-1-62708-184-9
Publication date:
2006
Book Chapter

Corrosion by Alkalis

By
Michael Davies
Michael Davies
CARIAD Consultants
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Published:
2006
Page range:
710 - 726
Publication history
October 10, 2006

Abstract

True alkaline chemicals include caustic soda or sodium hydroxide (NaOH), caustic potash or potassium hydroxide (KOH), and soda ash or sodium carbonate (Na2CO3). This article reviews alkaline chemicals and provides a basis for a general discussion on various alkaline exposures. It describes the corrosion effects of caustic soda on aluminum and aluminum alloys, iron and steel, carbon and low-alloy steels, stainless steels, high-performance austenitic alloys, nickel and nickel alloys, copper and copper alloys, titanium and titanium alloys, and zirconium and zirconium alloys. The article discusses the corrosion effects of caustic soda on nonmetallic materials: plastics, thermoplastics, thermosetting resin materials, carbon and graphite, and ceramics. It concludes with information on the effects of contamination of and by caustic and of admixtures of caustic with other chemicals including chlorates, chlorides, chlorine/hypochlorite, mercury, sulfur, and iron.

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Michael Davies, 2006. "Corrosion by Alkalis", Corrosion: Environments and Industries, S.D. Cramer, B.S. Covino, Jr.

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