Chapter 2 · micro test plate, W-tube, micro test tube etc. 1. Used for transferring small amounts of solid 1. Used to determine the pH or to study the change in pH of the chemical

7Manual of SEAT Friendly MCL Kit

S.No. Item Name Figure/Setup Uses

1. Wooden boxwith revolvingtop (1)

2. Microbeaker (10 mL) (12)

3. Beaker (50mL) (3)

4. Micro-filtrationunit (2)

1. Storage box opens on bothsides. Contains necessaryapparatus for doingexperiments.

2. Revolving top containingdispensing bottles and vialsfor easy access to chemicals.

1. As a container for keepingliquids.

1. As a container for use inelectrochemical experiments,thermochemistry experimentspreparation of salts, etc.

Steps for use1. Bore the rubber cork to fit the

stem of Hirsch funnel.2. Cut the filter paper to fit the

mesh of the funnel. The sizeshould exactly fit the mesh,neither big nor small.

3. Fit the cork with funnel inthe mouth of the boiling tube(having a side tube).

4. Transfer the solution to befiltrated to the funnel.

5. Press the bulb with hand toevacuate it and place it on theside tube of the boiling tubewhile keeping it pressed.

6. Release the pressure. The bulbwill suck the air inside the boilingtube allowing fast filtration.

Chapter 22.1 Description of Kit Items

(Quantity/ kit)

8 Manual of SEAT Friendly MCL Kit


5. Watch glass (2)

6. Micro testplate(Well plate) (4)

7. Micromeasuringcylinder (2)

1. The watch glass is used tohold solids when beingweighed.

2. It should never be heated.

1. Flat plate with multiple “wells”used as micro test tubes.

2. Contains 96 rectangular matrix.3. Each well of a micro plate

typically holds somewherebetween a few to a fewhundred microlitres of liquid.

4. Use these wells by placing afew drops of test solutionand reagent.

5. Clean the wells with jet ofwater from wash bottle anddry it with cotton swab.

6. A number of tests can bedone without bothering toclean the wells after one testonly. But don’t forget toclean the wells at the endof the experiment.

7. Do not heat the micro test plate.

1. To measure the volume of aliquid up to 10 mL.

2. To conduct activitiesrequiring measurement ofrise or fall in the level of aliquid.

(Quantity/Kit)



8. Micro burette (4)

9. Petri dish (2)

10. Micro testtubes

(24)

11. Pasteurpipette (20)

1. The micro burette has 5 mLcapacity with the least countof 0.2 mL. At the narrow endof the burette, a microtip isattached with the help ofplastic tube. Microtipdelivers about 78 drops in 1mL of solution.

2. Two burettes are used toavoid the use of a pipetteand are fixed in the stand.

3. Pour the liquid slowly andmake sure that no air bubbleremains inside the burettes.

1. A shallow glass rounddish used forchromatography.

1. As a container for keepingand testing small quantitiesof liquids.

2. To boil water over the microburner.

1. Made of plastic and alsoknown as dropper.

2. Used to transfer smallamounts of liquids.

(Quantity/Kit)


S.No. Item Name Figure/Setup Uses (Quantity/kit)

12. Glass rod (2)

13. Micro titrationflask (4)

14. Capillary tubes (1 box)

15. Thermometer (1 each)

1. Used as a stirrer.2. Used to pour liquid on to the

filter paper during filtration.

1. Used for titration.

1. Used for melting pointand boiling pointdetermination.

1. Thermometer (0 oC to250oC) with 1oC leastcount for boiling pointand melting pointdetermination.

2. Thermometer (0o-60oC)(Least count 0.1oC) forthermochemistryexperiments

1. Circular end is used to stira mixture or a solution inthe calorimeter.

2. The mounted stirrer isinserted in the foam lid ofthe calorimeter surroun-ding the thermometer.

16. Stirrer (2)



17. Calorimeter (1)

18. CircularWhatmanpaper (20 pieces)

19. Keroseneburner (2)

20. Tripod (2)

1. Device used for measuringthe enthalpy of chemicalreactions or physicalchanges.

2. A 50 mL beaker is fixed inthe foam container with thelid.

1. Used for filtering thesubstances or product of achemical reaction or inchromatography, etc.

1. Used for heating andexposing items to flame.

2. The device safely burns acontinuous stream ofkerosene/gas.

3. To use kerosene burner, fixthe lid containing wicks tothe container havingkerosene oil. Fix innerchimney to the lid. Light theburner. Fix outer chimney tothe lid. A blue flame willappear after a few minutes.

1. Used for keeping the beaker,test tubes or chaina dish inposition for heating (No wiregauze is put over the tripodstand).

(Quantity/kit)



21. W-Tube(10)

22. Multimeter(1)

1. In one of the outer sides ofW-tube, a few mg of solid orfew drops of liquid under testare transferred. In the otherarm, transfer a few drops ofreagent (e.g. KMn0 4solution) that would reactwith the gas generated in thefirst arm. The reagent thatwould react with the testsample is then transferred asone or two drops with thehelp of another dropper intothe first arm. The stem of thedropper would make this sideairtight.

2. The generated gas wouldbubble through the liquidreagent in the other sideshowing the chemical change.

3. Used in the reactions suchas to test the and evolutionof CO2 and of SO2 gases andin the test of ethylene.

4. Cleaning of W-tube is doneby passing a stream of waterfrom the wash bottle jet intoone of the arms of the W-tube. The second arm shouldpoint towards the containerin which the contents are tobe drained.

1. To check the continuty of awire and circuit.

2. To measure resistance,voltage, and current.



23. Volumetricflask (2)

24. Dropperwithrubberbulb (3)

25. Salt bridge (2)

1. Used to make accurate solutionby measuring a specific volume.

1. The dropper is used fortransferring small amounts ofa liquid from container toanother.

2. Fix the rubber bulb to the smallglass dropper.

1. Consists of U-shaped glasstubes with upper side tube in themiddle, filled with a relatively inertelectrolyte, usually potassiumchloride or sodium chloride.

2. Fix the bigger rubber bulb (sameas used with filtration unit) orsyringe to the upper side tubeof U-tube.

3. Squeeze the bulb and dip thetwo ends of U-tube in thesaturated solution of KCl.Release the pressure. The liquidwill be filled in the U-tube.

4. Allows the flow of ions tomaintain a balance in chargebetween the oxidation andreduction vessels while keepingthe contents of each separate.With the charge differencebalanced, electrons can flowonce again, and the reductionand oxidation reactions canproceed.



26. Dispensingbottles (30)

27. Vials

(20)

28. Roundbottom flask (2)

29. China dish (2)

1. Used to keep the chemicalreagents.

2. Open the cap and squeezethe bottle to dispense one ortwo drops.

3. Label the dispensing bottle.

1. Used as a container to storethe solid chemicals.

1. Round-bottom flask is usedin a variety of applicationswhere the contents areheated or boiled in organicpreparations.

1. Used to heat smallquantities to very hightemperatures.

2. Used as a water bath.

1. To determine the boilingpoint of a substance. 30. Fusion tube

(20)


31. Chromato-graphy jarwith cork

(1)

32. Wash bottles

(2)

33. Microspatula (2)

34. pH paper (a pack)

35. Alumimium block (1)

S.No. Item Name Figure/Setup Uses (Quantitiy/kit)

1. Put the cork on the open endof the jar, fit a hook in theinner side of the bottom ofthe cork so as to hang theWhatman paper strip.Note: strip width should beof 3/4of inch, the length mustbe shorter than that of thejar, so that it would not touchthe inner walls of the jar.

1. Used to contain water towash the apparatus likemicro test plate, W-tube,micro test tube etc.

1. Used for transferring smallamounts of solid

1. Used to determine the pHor to study the change in pHof the chemical reaction.

1. Used as a platform to heatthe test tubes.

2. Used to hold the thermometerand measure the temperature.

3. The narrow slit is used to placethe capillary tube for meltingpoint determination.

4. Put the thermometer in one ofthe holes.

5. Put the fusion tube containinga liquid when boiling point isto be determined.Make sure the level of the liquidshould be visible. Place aninverted capillary tube sealed atone end.



36. Forceps (2)

37. Two wayburette clampand stand (2)

38. Micro testtube holder (2)

39. Electrodes (1 pair)

1. Used to pick and hold theobjects.

1. Used to hold the buretteupright during thetitration.

1. The holder is used tohold test tubes whenthey are hot anduntouchable.

1. Used to generate voltagein an electrochemicalreaction.

1. The test tube brush isused to easily clean theinside of a test tube.

1. The test tube rack is usedto hold test tubes.

1. Used for filtering.

40. Micro testtube brush (2)

41. Micro testtube rack (2)

42. Micro funnel (2)

Documents

Chapter 2 · micro test plate, W-tube, micro test tube etc. 1. Used for transferring small amounts of solid 1. Used to determine the pH or to study the change in pH of the chemical