sodium sulfite

American  

noun

Chemistry.

1. a white, crystalline, water-soluble solid, Na 2 SO 3 , used chiefly as a food preservative, as a bleaching agent, and as a developer in photography.

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Example Sentences

To make the humanmade version, the team first softened thin strips of oak by boiling them with lye and sodium sulfite.

From Science Magazine

Then the gases are routed into a device called a scrubber, where they bubble through a caustic-soda solution; chemical reaction between the SO2 and the soda produces two salts, sodium sulfite and sodium sulfate, that are pumped from the scrubber in waste liquids into tanks.

From Time Magazine Archive

In the meantime, a sodium sulfite solution is prepared by dissolving 890 g. of sodium hydroxide, of about 90 per cent purity, in about 1 l. of water and then diluting to 6 l.

From Project Gutenberg

The sodium sulfite solution is placed in a 12-l. flask and cooled to about 5'0.

From Project Gutenberg

The flask is now warmed to about 20'0 on a steam bath, until the solid sodium sulfite, which has separated while cooling, redissolves.

From Project Gutenberg