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Dolomit

DOLOMITE Struktur
16389-88-1
CAS-Nr.
16389-88-1
Bezeichnung:
Dolomit
Englisch Name:
DOLOMITE
Synonyma:
DOLOMITE;taraspite;pearlspar;rhomb-spar;mirrorstone;Microdolomite;Grounddolomite;dolomitepowder;C2CaMgO6 DOLOMITE;dolomite(camg(co3)2)
CBNumber:
CB7129542
Summenformel:
C2CaMgO6
Molgewicht:
184.4
MOL-Datei:
16389-88-1.mol

Dolomit Eigenschaften

Dichte
2.07 g/cm3
Farbe
White
Dielectric constant
6.8-8.0(0.0℃)
EPA chemische Informationen
Dolomite (CaMg(CO3)2) (16389-88-1)

Sicherheit

Dolomit Chemische Eigenschaften,Einsatz,Produktion Methoden

Beschreibung

Dolomite is a massive calcareous sedimentary rock made of the mineral dolomite [CaMg(CO3)2, rhombohedral]. Usually dolomite as a rock contains, apart from dolomite, other carbonates (e.g., calcite, magnesite, and siderite), along with some silica and alumina, mostly as clays. For commercial purposes, the mass fraction of combined impurities must be below 7 wt.%, above which it becomes unsuitable for industrial use and is then used only for road ballasts and building stones. When the percentage of calcium carbonate (CaCO3) is above 10 wt.% or more over the theoretical composition, the rock is termed calcitic dolomite, while with a departure from theoretical magnesite content the rock is called dolomitic limestone. With variations in MgCO3 between 5 and 10 wt.%, it is called magnesian limestone, and when it contains up to 5 wt.% MgCO3 or less it is considered limestone for all purposes.

Physikalische Eigenschaften

Habit: rhombohedral, crystalline, massive, botryoidal, globular, stalactitic.
Color: white, gray, reddish white, brownish white, or gray.
Luster: vitreous (i.e., glassy).
Diaphaneity: transparent to translucent.
Streak: white.
Cleavage: (1011) perfect.
Twinning: {0001}, {1010}, {1110}, {0112}.
Fracture: brittle, subconchoidal.
Chemical: readily dissolved by strong mineral acids with evolution of carbon dioxide.
Occurrence: sedimentary rocks.

Definition

dolomite: A carbonate mineral consistingof a mixed calcium–magnesiumcarbonate, CaCO3.MgCO3,crystallizing in the rhombohedralsystem. It is usually white or colourless.The term is also used to denotea rock with a high ratio of magnesiumto calcium carbonate. See limestone.

Landwirtschaftliche Anwendung

Dolomite is a carbonate of calcium and magnesium. It is a mineral of formula CaMg(CO3)2 with a rhombohedral system. It has a density of 2.8 g/cc and hardness of 4 on the Mohs scale.
Dolomite has a vitreous lustre which is between transparent and translucent. It effervesces with hot concentratedh ydrochloric acid (HCl).
A carbonate-rich sedimentary rock of chemical or biological origin contains 50% or more carbonate, of which at least half is in the form of dolomite. The color of dolomite is darker than limestone and does not give any effervescence with cold and dilute HCl.
Dolomite may also contain iron and manganese. Depending on the proportion of dolomite and calcite, there are many transitional phases between calcareous dolomites and dolomitic limestones.
Dolomite has multiple applications. It is used in the manufacture of magnesium and its compounds. It is also used as building material, as a refractory for furnaces, as a fertilizer, for the removal of sulphur dioxide from stack gases and in ceramics.

Industrielle Verwendung

Dolomite is the carbonate mineral CaMg(CO3)2,often with small amounts of iron, manganese,or excess calcium, which replace some of themagnesium; cobalt, zinc, lead, and barium aremore rarely found.
Dolomite is a very common mineral, occurringin a variety of geologic settings. It is oftenfound in ultrabasic igneous rocks, notably incarbonates and serpentinites, in metamorphosedcarbonate sediments, where it may recrystallize to form dolomite marbles, and inhydrothermal veins. The primary occurrence ofdolomite is in sedimentary deposits, where itconstitutes the major component of dolomiterock and is often present in limestones.
Dolomite is normally white or colorlesswith a specific gravity of 2.9 and a hardness of3.5-4 on Mohs scale.

Dolomit Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Dolomit Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 101)Lieferanten
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16389-88-1(Dolomit)Verwandte Suche:


  • MAGNESIUM CALCIUM CARBONATE
  • DOLOMITE
  • CALCIUM-MAGNESIUM CARBONATE
  • taraspite
  • Calcium magnesium carbonate,basic
  • Calciummagnesiumcarbonate,light
  • dolomite(camg(co3)2)
  • dolomitepowder
  • Grounddolomite
  • mirrorstone
  • pearlspar
  • rhomb-spar
  • Microdolomite
  • DoloMite, MiniMuM 20 Mesh, Granular
  • DOLOMITE ISO 9001:2015 REACH
  • C2CaMgO6 DOLOMITE
  • 16389-88-1
  • CaMgCO32
  • CaCO3MgCO3
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