Filters and filtration

Extremely wet solids (solid floating in water). Set up a gravity filtration (see Gravity Filtration ) and filter the liquid off of the solid. Remove the filter paper cone with your solid product, open it up, and leave it to dry. Or remove the solid and dry it on fresh filter paper as above. Use lots of care though. You don t want filter paper fibers trapped in your solid. 

Set up the gravity filtration and filter off the carbon. It is especially important to wash off any product caught on the charcoal, and it is really hard to see anything here. You should take advantage of fluted filter paper. It should give a more efficient filtration. 

The alkali sulphites and bisulphites are produced on the large scale by treating lime and magnesia or dolomitic limestone with sulphur dioxide in the presence of water, then adding the requisite amount of alkali sulphate to the filtrate and filtering off any insoluble sulphate 3 or, alkali carbonate or bicarbonate may be treated directly with sulphur dioxide.4... 

Filtration and filters. (With section on mathematical aspects by A. J. V. Underwood, pp. 87-109.) London Ernest Benn. 

In water-loaded rats orally administered single doses of 25, 50, 200,350, and 500 mg/kg corn stigma extract, an increase in potassium excretion was observed at doses of 350 and 500 mg/kg. At the 500 mg/kg dose, diuretic activity was observed. In rats administered a single dose of 500 mg/kg of the same extract, glomerular filtration and filtered load decreased without affecting proximal tubular function, sodium, or uric acid excretion (Velazquez et al. 2005). 

If the liquid pressure works through the slurry itself, either due to the force of gravity or by pumping, this is known as pressure filtration and filters which work on this principle are known as pressure filters. According to requirements, very... 

Collect the filtrate and filter this very portion of filtrate again over the same piece of paper. Use the last filtrate for analysis. 

---