Inflammable Organic Solvents in the Laboratory

Alcohol

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Acetone

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Phenol

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Benzene

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Ether

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Use of Laboratory Glasswares & Equipments

1. Conical Flask
   To collect filtrates to mix solutions.
2. Beaker
   To mix and put liquids.
   To measure solutions.
3. Test Tube
   To mix liquids & separate.
4. Boiling Tube
   Boil for certain amount of solution.
5. Ignition Tube
   To heat in high temperature.
6. Filter Funnel
   To filtrate liquids & solutions.
7. Measuring Cylinder
   Measure liquids.
8. Filter Paper
   Filter liquids regularly.
9. Tongs
   To hold ignition tube & boiling tube.
10. Test Tube Holder
    To hold the test tube & boiling tube.
11. Wire Gauze
    To place on conical flask or beaker on the tripod stand.
12. Tripod Stand
    To place flask or beaker which is to be heated.
13. Wash Bottle
    To store distilled water.
14. Spatula
    To take solid chemicals.
15. Watch Glass
    To take solid chemicals & measuring.
16. Glass Rod
    To filter & mix chemicals.
17. Stand
    To hold the filter funnel.

Degaldoruwa Temple Arts

Vessantara is shown the way to the big mountain by the kings.Detail of a narrative painting of Vessantara Jataka,Degaldoruwa Rajamaha Vihara, Gunnapana between 1771 & 1786.

Dembawa Temple Arts

Battle with Mara. Painting on cloth (Petikada). Dembawa Rajamaha Vihara.
Late 18th century.

Divine being fanning the Buddha. Detail of a painting on cloth (Petikada). Dembava Rajamaha Vihara. Late 18th century.

Few shots from my drawings :)

These drawings are drawn during my secondary & tertiary school career.

 

 

Is there any difference between Erlenmeyer Flask & Conical Flask?

No,there is no difference between them.
Both are same.
Both are used in many chemical experiments in laboratory such as for titration,for boiling,for chemical mixing and so on.

Erlenmeyer Flask











 Conical Flask

Why do we Standardize a Solution?

Sometimes we should have to standardize Solutions (Reagents) before starting a chemical experiments because,it will allow us to get correct readings during the experiment whereas the exact concentration of the solution could be different.And as well as by standardizing a solution we could minimize the deviation of instrumental errors & random human errors too.Therefore,it is good to standardize and get actual concentration at the initiation of the experiment.