CALCITE POWDER

Features:
CALCITE is a carbonate of lime (CaCo3). It crystallizes in rhombohedra class. It is also known by the name calc-spar. It is white in color but is also found in various shades like pink, brown etc., depending upon the impurities present. It is identified easily from other lime minerals by its well defined rhombohedra cleavage and hardness 3 of Moh's scale. Its composition is identical to that of limestone but the latter occurs as sedimentary beds. There is another mineral, aragonite, of the same
Description:

 

Calcite in pulverized form finds use mostly as filler in rubber and textile goods. A considerable quantity is also used in the ceramics industry for the preparation of glazes. Super white quality of calcite in powder form (-300 mesh) is used in the manufacture of paint and distemper. Calcite is now insecticides. It is also used in the manufacture of cement, calcium carbide, metal polish and sometimes also as a fluxing agent. The transparent and clear crystals are used in the optical industry, for the manufacture of nicol prism. Principal characteristics which make iceland-spar of special value for use in optical instruments are its very high birefringence, high degree of purity, perfect crystalline structure and transparency. The mineral must be in pieces at least 25mm. long, 12mm. thick, colourless, transparent and free from cloudy inclusions, cavities, and foreign substances. 


Chemical Composition of Calcite Powder

Analysis Report

 

 

Calcium Oxide

Cao

58.83

Magnesium Oxide

Mgo

0.232

Silica

SiO2

2.75

Alumina

Al2O3

0.20

Ferric Oxide

Fe2o3

0.14

Titanium Dioxide

TiO2

Nil

Manganese Oxide

MnO

0.026

Sodium Oxide

Na2O

0.14

Potassium Oxide

K20

0.006

Loss on ignition

LOI

42.34

Loss on drying 

 

0.10

Chlorides

CI

0.02

Sulphates

SO4

0.04

Alkali ( Water Soluble )

 

0.12

Carbon dioxide

Co2

42024

Matter insoluble hydrochloric acid

 

2.50

 

Portable Composition

 

 

Calcium Carbonate

CaCo3

96.00

Magnesium Carbonate

MgCo3

Nil

 


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16/05/2013
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