F3 Chemistry Individual Project Work

Ionic &covalent CompoundsAngel 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 medicine2.use in photography3.highly efficient as a chemical agent for chemical

industry4. 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 chlori

ne 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