Synthesis of sodium bisulfite (sodium hydrogen sulfite)

Preparation of sodium bisulfite

Sodium bisulfite is prepared by saturating sodium carbonate solution with sulfur dioxide.

Preparation of sodium bisulfite

Preparation of sodium bisulfite

50 g of copper tacks or clippings are heated with 200 g of concentrated sulfuric acid in a flask, with gas outlet tube. Obtained sulfur dioxide gas is first passed through a washing bottle containing water, then into a flask containing a solution of pure crystallized sodium carbonate. The saturation of sodium carbonate solution with sulfur dioxide is continued until the evolution of carbon dioxide ceases. When the reaction is complete, water is removed in vacuum by evaporation until the sodium bisulfite starts to crystallize. The solution is cooled, filtered and the crystals are washed with small amount of cold water, ethyl alcohol. Finnaly sodium bisulfite is dried in vacuum desiccator over anhydrous calcium chloride.

Laboratory manual of inorganic preparations, by H. T. Vulte, 52, 1895


sodium;hydrogen sulfite



InChI Key


Canonical SMILES


MeSH Synonyms

sodium bisulfite

Depositor-Supplied Synonyms

SODIUM BISULFITE, Sodium hydrogen sulfite, sodium hydrogensulfite, Sodium bisulphite, 7631-90-5, NaHSO3, CHEMBL1689285, CHEBI:26709, E222, Sodium bisulfite solution, Sodiumbisulfite, saures Natriumsulfit, Natriumhydrogensulfit, sodiumhydrogensulphite, sodium hydrogensulphite, primaeres Natriumsulfit, sodium hydrogen-sulfite, Sodium bisulfite (TN), sodium hydrogen sulphite, Sodium bisulfite [JAN], Sodium bisulfite (JP16), SULFONIC ACID SODIUM, AC1Q1W6E, DSSTox_CID_14902, DSSTox_GSID_47218, SODIUM BISULFITE, ACS, KSC492I6N, CAS-NOCAS_47218, 13438_RIEDEL, S9000_SIAL, TZX5469Z6I, CTK3J2466, DWAQJAXMDSEUJJ-UHFFFAOYSA-M, MolPort-006-107-705, 13438_SIAL, 243973_SIAL, Tox21_303826, IN3247, AKOS015856800, LS-2423, RL04906, RTR-024454, NCGC00357103-01, BP-12336, AB1009828, TR-024454, D02059, Sodium bisulfite, mixture of NaHSO3 and Na2S2O5

Removed Synonyms

Natriumbisulfit, Sodium disulfite, Sodium sulhydrate, Sodium metabisulfite, Monosodium sulfite, Sodium pyrosulfite, Uantax SBS, Sodium acid sulfite, Caswell No. 750, Hydrogen sodium sulfite, Hydrogen sulfite sodium, Sodium hydrosulfite(DOT), POTASSIUM BISULFITE, Sodium bisulfite (1:1), Sodium bisulfite (JP15), Sodium sulfite (NaHSO3), Sodium bisulfite (NaHSO3), UNII-TZX5469Z6I, Bisulfite de sodium [French], Fr-62, CCRIS 3950, HSDB 724, Sulfurous acid, monosodium salt, Sodium hydrogen sulfite, solution, EINECS 231-548-0, CID656672, NSC 60680, Sulfurous acid, sodium salt (1:1), EPA Pesticide Chemical Code 078201, Sodium hydrogensulphite (aqueous solution), AI3-08582, Sodium hydrogen sulfite solution (45% or less), C009279

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