Magnesite Chemische Eigenschaften,Einsatz,Produktion Methoden
Beschreibung
Magnesium carbonate has the molecular formula of
MgCO
3 and the molecular weight of 84.3145 g/mol.For the most part,Mg
2+
forms several hydrated and
basic carbonates that are stable and occur in nature.
The calcite structure of magnesium
carbonate has the form wherein Mg
2+
is surrounded
by six O
2-
atoms. The dihydrate composition has
a triclinic structure, while the trihydrate has a monoclinic
structure. References to “l(fā)ight” and “heavy” magnesium
carbonates actually refer to the magnesium hydroxycarbonates.
A space-filling structure of the anhydrous
salt is seen in the above diagram where the triangular
CO
3 2-
groups are clearly visible.
Chemische Eigenschaften
Light, bulky, white powder. Soluble in acids; very slightly
soluble in water; insoluble in alcohol. Noncombustible.
Verwenden
Magnesium Carbonate is an anticaking agent and general purpose
food additive. it is practically insoluble in water but is more soluble
in water containing carbon dioxide. it imparts a slightly alkaline
reaction to the water. it is used as an alkali in sour cream, butter, and
canned peas. it is used as an anticaking agent in table salt and dry
mixes. it assists in providing clarity in algin gels and functions as a
filler in dental impression materials.
Definition
The term magnesium
carbonate is generally reserved for the synthetic,
pure variety. The naturally occurring material is
called magnesite.
Magnesite Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
