- Sodium bisulfate
Sodium bisulfate Identifiers CAS number , (monohydrate) PubChem EC number RTECS number VZ1860000 Properties Molecular formula NaHSO4 Molar mass 120.06 g/mol (anhydrous)
138.07 g/mol (monohydrate)
Appearance white solid Density 2.742 g/cm3 (anhydrous)
1.8 g/cm3 (monohydrate)
decomposes to Na2S2O7 (+ H2O) at 315°C
Solubility in water 50 g/100 mL (0°C)
100 g/100 mL (100°C)
Solubility insoluble in ammonia; decomposed by alcohol Acidity (pKa) 1.99 Structure Crystal structure triclinic (anhydrous)
Hazards MSDS External MSDS EU Index Corrosive (C) R-phrases S-phrases NFPA 704 Flash point Non-flammable Related compounds Other anions Sodium sulfate Other cations Potassium bisulfate (what is: /?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Sodium bisulfate, also known as sodium hydrogen sulfate (NaHSO4), is an acid salt. It is a dry granular product that can be safely shipped and stored. The anhydrous form is hygroscopic. Solutions of sodium bisulfate are acidic, with a 1M solution having a pH of < 1.
- NaOH + H2SO4 → NaHSO4 + H2O
- NaCl + H2SO4 → NaHSO4 + HCl
The liquid sodium bisulfate is sprayed and cooled so that it forms a solid bead. The hydrogen chloride gas is dissolved in water to produce hydrochloric acid as a useful coproduct of the reaction.
There are only two producers in the USA: Jones-Hamilton Co. uses the sulfuric acid/sodium chloride process, which produces the anhydrous form. Jost Chemical uses the sodium hydroxide/sulfuric acid method, which produces the monohydrate.
Sodium bisulfate is used primarily to lower pH. For technical grade applications it is used in metal finishing, cleaning products, and to lower the pH of water for effective chlorination, including swimming pools. Sodium bisulfate is also AAFCO approved as a general use feed additive, including companion animal food. It is used as a urine acidifier to reduce urinary stones in cats. Sodium bisulfate is considered GRAS (Generally Recognized As Safe) by FDA and meets their definition of a natural product. The food grade product meets the requirements set out in the Food Chemicals Codex (FCC). It is denoted by E number E514ii in the EU. Food Grade sodium bisulfate is used in a variety of food products, including beverages, dressings, sauces, and fillings. It is also widely used in meat and poultry processing and most recently in browning prevention of fresh cut produce.
- ^ FDA GRAS Notice
- ^ Fisch, Arline M. (2003), Textile Techniques in Metal: For Jewelers, Textile Artists & Sculptors, Lark Books, p. 32, ISBN 9781579905149, http://books.google.com/books?id=4eFNLNSDNZgC&pg=PA32.
NaAlO2 · NaBH3(CN) · NaBH4 · NaBr · NaBrO3 · NaCH3COO · NaCN · NaC6H5CO2 · NaC6H4(OH)CO2 · NaCl · NaClO · NaClO2 · NaClO3 · NaClO4 · NaF · NaH · NaHCO3 · NaHSO3 · NaHSO4 · NaI · NaIO3 · NaIO4 · NaMnO4 · NaNH2 · NaNO2 · NaNO3 · NaN3 · NaOH · NaO2 · NaPO2H2 · NaReO4 · NaSCN · NaSH · NaTcO4 · NaVO3 · Na2CO3 · Na2C2O4 · Na2CrO4 · Na2Cr2O7 · Na2MnO4 · Na2MoO4 · Na2O · Na2O2 · Na2O(UO3)2 · Na2S · Na2SO3 · Na2SO4 · Na2S2O3 · Na2S2O4 · Na2S2O5 · Na2S2O6 · Na2S2O7 · Na2S2O8 · Na2Se · Na2SeO3 · Na2SeO4 · Na2SiO3 · Na2Te · Na2TeO3 · Na2Ti3O7 · Na2U2O7 · NaWO4 · Na2Zn(OH)4 · Na3N · Na3P · Na3VO4 · Na4Fe(CN)6 · Na5P3O10 · NaBiO3
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sodium bisulfate — noun also sodium acid sulfate : a crystalline salt NaHSO4 that gives an acid reaction in solution, that is usually made by the reaction of sulfuric acid with common salt or sodium sulfate, and that is used chiefly as a flux in pickling metals and … Useful english dictionary
sodium bisulfate — Chem. a colorless crystalline compound, NaHSO4, soluble in water: used in dyeing, in the manufacture of cement, paper, soap, and an acid type cleaner. Also called sodium hydrogen sulfate. * * * … Universalium
Sodium sulfate — Other names … Wikipedia
Sodium bicarbonate — Sodium bicarbonate … Wikipedia
Sodium bisulfite — Sodium bisulfite … Wikipedia
Sodium nitrate — IUPAC name … Wikipedia
Sodium dithionite — Sodium dithionite … Wikipedia
sodium sulfate — noun a solid white bitter salt used in manufacturing glass and paper and dyes and pharmaceuticals • Syn: ↑sodium sulphate • Hypernyms: ↑sulfate, ↑sulphate * * * noun : either of two crystalline sulfates of sodium: a … Useful english dictionary
bisulfate — /buy sul fayt/, n. Chem. a salt of sulfuric acid, containing the HSO4 group; an acid sulfate; a hydrogen sulfate, as sodium bisulfate, NaHSO4. Also, bisulphate. [1860 65; BI 1 + SULFATE] * * * … Universalium
sodium hydrogen sulfate — Chem. See sodium bisulfate. * * * … Universalium