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Dalian Lichuang Trade Ltd
Dalian Lichuang Trade Ltd

China CCaO3 powder chemicals with good quality manufacturer

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CCaO3 powder chemicals with good quality 

Price: 200.0 USD 
Payment Terms: T/T,WU,Money Gram 
Special Groups: pharmaceutical intermediates manufacture (17)
Place of Origin: Hebei, China (Mainland) 
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Product Detail

Means of Transport: air, sea
Packing: As per customer's request
CAS No.: 471-34-1
Common name: Calcium carbonate
Place of Origin: Hebei
Density: 2.93 g/mL at 25 °C(lit.)
Production Capacity: 100kg
Delivery Date: 7-15 days
Purity: 99%
Molecular Weight: 100.09
Molecular Formula: CCaO3
EINECS No.: 207-439-9

Melting point:825 °C
Storage conditions:Store at RT.
Solubility:5 M HCl: 0.1 M at 20 °C, clear, colorless
Stable. Incompatible with fluorine

Calcium carbonate is a chemical compound with the formula CaCO3. It is a common substance found in rocks as the minerals calciteand aragonite (most notably as limestone, which contains both of those minerals) and is the main component of pearls and theshells of marine organisms, snails, and eggs. Calcium carbonate is the active ingredient in agricultural lime and is created when calcium ions in hard water react with carbonate ions to create limescale. It is medicinally used as a calcium supplement or as anantacid, but excessive consumption can be hazardous.

Chemistry[edit]

Calcium carbonate shares the typical properties of other carbonates. Notably,

  • it reacts with acids, releasing carbon dioxide:

  • CaCO3(s) + 2H+(aq) → Ca2+(aq) + CO2(g) + H2O (l)

  • it releases carbon dioxide upon heating, called a thermal decomposition reaction, or calcination, (to above 840 °C in the case of CaCO3), to form calcium oxide, commonly called quicklime, with reaction enthalpy 178 kJ / mole:

  • CaCO3 (s) → CaO (s) + CO2 (g)

  • Calcium carbonate will react with water that is saturated with carbon dioxide to form the soluble calcium bicarbonate.

  • CaCO3 + CO2 + H2O → Ca(HCO3)2

  • This reaction is important in the erosion of carbonate rock, forming caverns, and leads to hard water in many regions.

    An unusual form of calcium carbonate is the hexahydrate, ikaite, CaCO3·6H2O. Ikaite is stable only below 6 °C.

Calcium carbonate CCaO3 powder and crystal

Industrial applications

Calcium carbonate is also used in the purification of iron from iron ore in a blast furnace. The carbonate is calcined in situ to give calcium oxide, which forms a slag with various impurities present, and separates from the purified iron.[18]

In the oil industry, calcium carbonate is added to drilling fluids as a formation-bridging and filtercake-sealing agent; it is also a weighting material which increases the density of drilling fluids to control the downhole pressure. Calcium carbonate is added to swimming pools, as a pH corrector for maintaining alkalinity and offsetting the properties of the disinfectant agent.

It is also used as a raw material in the refining of sugar from sugar beet; It is calcined in a kiln with anthracite to produce calcium oxide and carbon dioxide. This burnt lime is then slaked in sweet water to produce a calcium hydroxide suspension for the precipitation of impurities in raw juice during carbonatation.[19]

Calcium carbonate has traditionally been a major component of blackboard chalk. However, modern manufactured chalk is mostly gypsum, hydrated calcium sulfate CaSO4·2H2O. Calcium carbonate is a main source for growing Seacrete, or Biorock. Precipitated calcium carbonate (PCC), pre-dispersed in slurry form, is a common filler material for latex gloves with the aim of achieving maximum saving in material and production costs.[20]

Fine ground calcium carbonate (GCC) is an essential ingredient in the microporous film used in diapers and some building films as the pores are nucleated around the calcium carbonate particles during the manufacture of the film by biaxial stretching. GCC or PCC is used as a filler in paper because they are cheaper than wood fiber. In terms of market volume, GCC are the most important types of fillers currently used.[21] Printing and writing paper can contain 10–20% calcium carbonate. In North America, calcium carbonate has begun to replace kaolin in the production of glossy paper. Europe has been practicing this as alkaline papermaking papermaking for some decades. PCC used for paper filling and paper coatings is precipitated and prepared in a variety of shapes and sizes having characteristic narrow particle size distributions and equivalent spherical diameters of 0.4 to 3 micrometres.[citation needed]

Calcium carbonate CCaO3 powder and crystal

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Company Info

Dalian Lichuang Trade Ltd [China (Mainland)]


Business Type:Manufacturer, Trading Company, Distributor/Wholesaler
City: Shijiazhuang
Province/State: Hebei
Country/Region: China (Mainland)

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