Dicyclohexyl amine nitrite

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Description

A white crystalline solid. Dicyclohexyl amine nitrite is used as a vapor phase corrosion inhibitor for silver, steel, and aluminum. It forms a thin protective layer on the surface of the metal which minimizes the transmission of moisture and oxygen. Dicyclohexyl amine nitrite is marketed as VPI 260 by Shell. It is used in antitarnish wrapping papers.

Synonyms and Related Terms

VPI 260 [Shell]; dicyclohexyl ammonium nitrite; dicyclohexylamine nitrite

Other Properties

Vapor pressure = 0.00013 at 21C; pH of condensate = 10.0

Composition (C6H11)2NH-HNO2
CAS 3129-91-7
Melting Point 182-183

Hazards and Safety

Skin irritant. Strong oxidizer.

Additional Information

L.Selwyn "Historical Silver: Storage, Display and Tarnish Removal" J.IIC-GC, Vol. 15, 1990

Sources Checked for Data in Record

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p.67
  • L. Selwyn, 'Historical Silver: Storage, Display and Tarnish Removal', J.IIC-GC, 15, 1990

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