These consist of sodium carbonate, sodium chloride or common salt and sometimes lime.
By directly precipitating a solution of the chloride with sodium carbonate, and washing and drying the powder as before.
A tin vessel provided with two tubulures, is filled with tobacco, which is previously damped with sodium carbonate.
Large crystals of sal soda containing but 37% sodium carbonate are formed.
A few drops of a solution of sodium carbonate added to the bottle over-night will secure this.
Treat the residue with sodium carbonate, boil for a short time, filter.
Solution is effected by boiling with aqua regia, or by fusing with nitre and sodium carbonate.
Burn to ash a sample of the pickles, and, if they are free from copper, fuse in a platinum dish with sodium carbonate.
Account for the fact that solutions of sodium carbonate and potassium carbonate are alkaline.
The ether solution was washed with water and dilute sodium carbonate solution, and the ether was evaporated.