DSpace

Digital.CSIC > Recursos Naturales > Instituto de Geología Económica (IGE) > (IGE) Comunicaciones congresos >

Open Access item Kinetics of Sodium Sulfate as observed by humidity cycling with ESEM

Authors:López-Arce, Paula
Doehne, Eric
Issue Date:Jun-2006
Publisher:Consejo Superior de Investigaciones Científicas (España)
Citation:Heritage, Weathering and Conservation Conference (HWC2006)
Abstract:[Background] Fluctuations of atmospheric conditions cause dehydration and hydration of hygroscopic salts, leading to expansion and contraction that results in fatigue stress of the porous material (Overmiller, 1926 in Shaffer 1932; Arnold & Zehnder 1988; Charola & Weber, 1992).
[Objective] Quantify reaction kinetics and morphological changes for sodium sulfate transition from decahydrate phase Mirabilite (Na2 SO4 x 10H2O) to a microcrystalline powder of anhydrous Thenardite (Na2 SO4) due to relative humidity cycling in ESEM (Doehne, 1994).
Description:15 slides.-- Communication presented in: Heritage, Weathering & Conservation Conference (Madrid, June 21-24, 2006).
URI:http://hdl.handle.net/10261/7807
Appears in Collections:(IGE) Comunicaciones congresos

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.