1 / 14

Basic Laboratory Techniques in Chemistry

Basic Laboratory Techniques in Chemistry. PURIFICATION OF WATER. The usual laboratory method of obtaining pure water is distillation. This method of purification will remove any substance that has a boiling point heigher than that of water.

orsen
Download Presentation

Basic Laboratory Techniques in Chemistry

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Basic Laboratory Techniques in Chemistry

  2. PURIFICATION OF WATER The usual laboratory method of obtaining pure water is distillation. This method of purification will remove any substance that has a boiling point heigher than that of water.

  3. When water contains bicarbonates of Ca, Mg or Fe it is said to have carbonate hardness. When water contains calcium sulphate, magnesium sulphate, calcium chloride and magnesium chloride it is said to have noncarbonate hardness.

  4. Another effective method of obtaining pure water is the use of organic deionizers. These are organic resins that exchange H ions for the cations and OH ions for the anions.

  5. water Natural water Heavy water Pure water Deionizers Distillation Zeolite Evaporation Condensation Dowex Amberlite

  6. PREPARATION OF OXYGEN AND HYDROGEN Among the gases that occur in the atmosphere, oxygen is the most important to use.

  7. OXYGEN Method of preparation • Heating potassium chlorate • Fractional distillation of liquid air • - Electrolysis of water

  8. HYDROGEN Method of preparation • Using metal • Electrolysis of water • Passing steam

  9. CARBON AND HYDROCARBONS Organic chemistry is the chemistry of the compounds of carbon.

  10. The forms of carbon Fuel Lubrificant Electrical conductor Metallurgy Catting tools Special metal Alloys Charcoal Coke Anthracite graphite Diamond Amorphous CARBON Halogen Carbons Hydrogen Oxygen Carbon compounds Dyes Plastics Textile fibers Medicines Drugs

  11. HYDROCARBONS Alkane They have single covalent bonds Series They have double covalent bonds Alkene They have triple covalent bonds Alkynes

  12. HYDROCARBONS PROCESSING • Cracking • Alkylation • Polymerization • Hydrogenation • Dehydrogenation • Aromatization

  13. BIBLIOGRAPHY P. Briano – A Matter of life - English for Chemistry, Biology and Biotechnology – Edisco P. Vaudo – On the Lab – Ed. Yuvenilia Author: Gabriele

More Related