Der Mechanismus der Hydratation von Magnesiumoxid mit Wasserdampf

Abstract

The hydration of different forms of magnesium oxide by water vapour was studied at room temperature using gravimetric, X‐ray and electron microscopic methods. It takes place in four steps; formation of a layer of chemi‐ and physisorbed water, transition of magnesium and hydroxide ions in the layer of physisorbed water, nucleation of the hydroxide and growth of the hydroxide crystals.

A systemic investigation on the hydroxylation behavior of caustic magnesia and magnesia sinter

“…CM and MS have been the focus of many investigations for over half a century and an aspect that has drawn plenty of attention is their hydroxylation (or hydration) behavior [17][18][19][20][21][22][23][24][25][26]. Depending on the application aimed at, MgO hydroxylation can be either valuable or undesired and, in both cases, the knowledge of how this process occurs can be highly useful.…”

Bivalent Metal Hydroxides

“…Detailed investigations of this multiple-step conversion process were carried out and reported by Feitknecht and his co-workers [17]. Their experiments revealed the following stages:…”

Morphological study of magnesium hydroxide nanoparticles precipitated in dilute aqueous solution

“…hydration of magnesium oxide MgO, [22,23], precipitation of a magnesium salt with an alkaline solution [24][25][26][27], electrolysis of an aqueous magnesium salt solution. Industrial production of magnesium hydroxide is mainly driven by the two first methods [28][29][30].…”