Russian
сернистокислый натрий Portuguese
sulfito de sódio Spanish
sulfito de sodio Catalan
sulfit de sodi 1
Generally speaking, the sulphuretted hydrogen and sodium sulphite methods are to be preferred.
2
Because of this reaction sodium sulphite is used as a convenient source of sulphur dioxide.
3
The sodium sulphite method has the advantages of being clean and neat, and of requiring no nitration.
4
The jute acetate showed the normal reaction with chlorine, and the lignone chloride was dissolved by treatment with sodium sulphite solution.
5
In addition, if an excess of sodium sulphite has been used and enough acid not subsequently added, the excess will count as iron.
1
The most feasible method consists in the reduction of diazonium salts with sodium sulfite.
2
The rapid addition of the diazonium salt solution to the sodium sulfite seems to be advantageous.
3
The sodium sulfite solution is placed in a 12-l. flask and cooled to about 5'0.
4
The flask is now warmed to about 20'0 on a steam bath, until the solid sodium sulfite, which has separated while cooling, redissolves.