soda ash

Origin of soda ash

First recorded in 1830–40

The soda-ash used by the soap-boiler, contains in general about 36 per cent.

A Dictionary of Arts, Manufactures and Mines |Andrew Ure
If the alkali be soda-ash of 40 per cent., half the weight will of course suffice.

A Dictionary of Arts, Manufactures and Mines |Andrew Ure
The ingredients in alkaline glazes are soda-ash, whiting, feldspar, flint and oxide of tin.

The Potter's Craft |Charles F. Binns
Scalded or simmered in a lye of soda-ash of about only 2-3rds the former strength, and washed.

Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I |Arnold Cooley

It is chiefly obtained as a by-product in the manufacture of soda-ash by the Leblanc process (see Alkali Manufacture).

Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 |Various

soda ash

the anhydrous commercial form of sodium carbonate