F3 Chemistry Individual Project Work Ionic &covalent Compounds Angel Lau F 3A (17)

Sodium Bromide (ionic compound) Formula: NaBr Electron diagram:

Physical properties Melting point:755 °C Boiling point:1390 °C Physical state at room temperature: crystalline solid Colour:White Density :3.21 g/cm3(solid ) Solubility in water :73.3 g/100 mL (20 °C) Electrical conductivity: conduct with electricity in aqueous solution form

Chemical properties laboratory preparation: 1.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 2.Wear suitable gloves 3.Wear eye/face protection 4.Contact with strong acids or bases and strong oxidizing agents should be avoided 5.Avoid contact with water reactivity: react with water neutral

Other information Uses: 1.as an anticonvulsant, a hypnotic and a sedative in the late 19th and early 20th centuries in medicine 2.use in photography 3.highly efficient as a chemical agent for chemical industry 4. used in organic synthesis potential hazards: 1.It is harmful if swallowed or inhaled in large amounts, affecting the central nervous system, brain, and eyes. 2.causes irritation to the skin, eyes and respiratory system.

Special characteristics It can be blended with other solutions of bromides and chlorides It is especially useful when used in formations that are known to have calcium sensitivity. Soluble in alcohol and acetone Bromine can be accomplished by bubbling chlorine gas through an aqueous solution of NaBr

Reference: http://en.wikipedia.org/wiki/Sodium_bromide http://www.tradeindia.com/fp106245/Sodium- Bromide.html http://www.tetrachemicals.com/Products/Bromides/Sodium_Bromide.aqf

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