Nitrogen Test Set
The oxygen test set can also be used as a
nitrogen test set by using stick phosphorous in place of copper wire and
water in place of Ammonium Chloride solution. Yellow or white phosphorous
submerged in water is used for absorbing the oxygen (which is principle
impurity in the nitrogen gas) to form phosphorous pent oxide, which is
soluble in water. The volume of remaining gas nitrogen is then measured in
the burette. A downward graduated burette may be used for easy reading.
It is dangerous to pass gas containing more than 7% oxygen into the
phosphorus test set. Phosphorus is highly combustible when exposed to air.
Always keep it completely immersed in water both in the test set and in
storage. Use tongs when handling phosphorus. Do not handle with the fingers.
PREPARATION OF THE TEST SET:
Invert the reaction chamber, remove the rubber cork 'F' pinch the rubber
tube to close it and fill the chamber and the reservoir with water. Using
tong fill the chamber with 3/16 or ¼ inch diameter stick phosphorus.
Cork the reaction chamber and connect the chamber to the stop cock 'H' Fill
the leveling bottle and the purging vessel half with water. Turn the
stop-cock to connect the reaction chamber with the burette and lower the
leveling bottle. The water from the reservoir will rise in the reaction
chamber and will flow down in the burette through stop-cock 'H' then turn
the stop cock 'H' to open to the purging vessel, at the same time, turn open
cock 'G' also. Raise the leveling bottle so that water will raise through
the burette, cock 'H', the rubber tube connection and the cock 'G' and
finally it will tickle down to the purging vessel. By raising and lowering
the leveling bottle a few times, all the air present in the burette and the
rubber tubing connections including the cocks 'G' & 'H' should be
expelled. After checking for air bubbles in the chamber and the burette,
close the clock 'H' and turn open the cock 'G' for sample gas connection.
The sample gas to be tested in allowed to bubble through water to
|Universal Industrial Plants Manufacturing Co.(P) Ltd.
Mr. Sanjiv Agrawal
A-104/2, Okhla Industrial Area, Phase - II
New Delhi - 110 020, Delhi, India
Universal Industrial Plants Manufacturing Co.(P) Ltd.
Developed and Managed by IndiaMART