The amount of alkali that has been used can be determined from the burette.
And subsequently when the burette is used, the volumes read from the scale on the burette must be corrected.
Burette, bū-ret′, n. a flask-shaped vessel for holding liquids, an altar-cruet.
A single drop is let fall from a burette or glass rod held steadily above the water, upon the centre of the surface.
While the water is flowing through b, the burette becomes filled with gas.
The water is allowed to rise into the burette as far as the cock, and the cocks, b and b¹, are afterward closed.
From a burette, quarter normal (N/4) sulfuric acid is added until the pink color is just discharged.
If a fifth normal caustic solution is used, the reading on the burette gives the percentage of free fatty acid directly.
Fill a burette with the solution of soda, and cautiously drop this into 63 gr.
Run in from a burette decinormal sodic hydrate, to a faint pink color.