[ps2id id=’background’ target=”/]
BACKGROUND
Particle that are placed on sieve set have uniform size of pore.when the sieve set is shaken normally the smaller particle are passed through the screen and higher particle are retained.1-3
Aim:-To determine particle size distribution by sieving method.
[ps2id id=’requirements’ target=”/]
REQUIREMENTS
Apparatus: Sieve set,
Mannual sieve shaker.
[ps2id id=’procedure’ target=”/]
PROCEDURE
The sieve are arranged in descending order of their pore size. Weighed amount of sample was placed at the top of the sieve shaker. Now the sieve shaker was started manually. The powder material retained in various sieve was collected and weighed .A plot was constructed taking particle size on x-axis and % weighed retain on y-axis.
Result interpitation
According to British pharmacopeia powder are classified as follows
SIEVE NUMBER | GRADE OF POWDER |
10 | COURSE |
20 | MODULLARY COURSE |
40 | MODULARY FINE |
80 | FINE |
120 | VERY FINE |
[ps2id id=’conclusion’ target=”/]
CONCLUSION
From the above experiment we concluded that the given sample of calcium carbonet, talc, magnesium sterate, lactose was successfully separated and distributed.
SIEVE NO |
WEIGHT RETAINED |
%WEIGHT RETAINED |
1 | ||
2 | ||
3 | ||
4 | ||
5 |
[ps2id id=’references’ target=”/][ps2id id=’1′ target=”/]