Chemistry Individual Project Work - CaBr2

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Chemistry Individual Project Work - CaBr2

• Candy Tsang
• F.3C (29)

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The ionic compound

• Name Calcium bromide
• Formula CaBr2
• Electronic diagram

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Physical properties

• Features
• 1) State solid
• 2) Appearance white crystal powder
• 3) Purity 95 min.
• 4) Melting point 730C Boiling point 806C
• 5) Density 3380 kg m-3
• 6) Molar mass of CaBr2 199.886 g/mol
• 7) Solubility in organics insoluble

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Chemical Properties

• 1) PH value 7-9
• 2) Toxicity Oral rat LD50 4100mg/kg
• When strongly heated in air, calcium bromide will
  produce calcium oxide and bromine.
• 2 CaBr2 O2 ? 2 CaO 2 Br2
• In this reaction the oxygen oxidizes the bromide
  to bromine.

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Others

• Uses
• Mainly applied in ocean oil wells as completion
  fluid, stationary liquid and workover fluid
• Can be found in
• drilling fluids, neuroses medication, freezing
  mixtures, food preservatives, photography and
  fire retardants
• Prices
• 138 for 500g

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Resources

• http//en.wikipedia.org/wiki/Calcium_bromide
• http//chemideal.en.alibaba.com/product/321892165-
  210230229/Calcium_Bromide_Liquid.html
• http//www.calciumbromide.net/
• http//www.chemicalbook.com/ChemicalProductPropert
  y_EN_CB3210471.htm
• http//www.google.com.hk/

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The End