It is always good to rinse and purge your burette to reduce the risk ofcontamination.Improperly purge burettes could cause problems.Before and after each use, clean your burette to ensure its integrity.
Step 1: 5 liters of distilled water is enough to fill the burette.
It's important to use distilled water for your experiment.If you want to get rid of particles, fill the burette from the top and run the water down the sides.Before filling the burette, make sure the stopcock is closed.
Step 2: The sides of the burette should be covered by the water.
You want the water to come in contact with as much of the burette side wall as possible.The top of the burette has a main rinse.You should swirl the water around the tube for each rinse.
Step 3: The water rinses the entire burette.
The burette should be kept horizontal so that the water can rinse the inside.You may need to clean the burette more thoroughly if you see water droplets on the sides.
Step 4: The stopcock valve can be opened with the burette.
When you get the burette back into a vertical position, you can open the stopcock valve.The burette should be held over the sink or waste container to keep the liquid out of the bottom.
Step 5: Let the liquid run out of the bottom.
When the valve is open, watch the water level drop until it goes through the tip.The burette's tip is cleaned.The burette has liquid pouring out of it.
Step 6: At least 2 more times, close the stopcock.
Make sure the stopcock is closed and fill the burette with distilled water.To coat the inside with water, tilt the burette horizontally.Hold it vertically and let the water out through the bottom tip.To pour out the remaining volume, flip the burette.You should rinse the burette at least 3 times.
Step 7: The rinse cycle should be repeated with the solution.
The same method is used to rinse the burette.The concentration of the solution is what you expect.The rinses are important to get the water out of the burette so that it doesn't affect the solution.Since you know the concentration of the solution, you can use it to find out how much analyte is in it.Gloves are required to avoid contact with harmful chemicals.
Step 8: After use, rinse with water.
After the experiment is over, rinse the burette with distilled water.Make sure the burette coats the tube and then run the water through it by opening the stopcock valve.If you were going to use distilled water, make sure to rinse the burette with lots of tap water.
Step 9: There are droplets on the side.
The burette is still dirty and needs more than water to be cleaned.The burette should be soaked in the detergent and washed thoroughly.After cleaning with a detergent, be sure to rinse many times and check for droplets on the side.No droplets should form if the burette has been cleaned.Allow the glassware to dry.Don't dry with towels as they may leave fibers behind.
Step 10: The burette top should be covered with a paper cap.
It is a good idea to put a paper cap on the burette once it is dry.Dust can get into the burette if it is sitting for a long time.You can make the caps by twisting one end of a paper tube.
Step 11: The burette should be stored in a glass locker.
glassware should be kept in a glass locker or case.If you have a burette cabinet, make sure the burettes are placed in the correct direction with the stopcock valve placed towards the wall.When you open the door, improper placement of burettes can cause them to fall out.