Sodium bisulfate

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Sodium bisulfate
IUPAC name
Sodium hydrogen sulfate
Other names
Sodium acid sulfateBisulfate of soda
Identifiers
CAS number
7681-38-1,10034-88-5 (monohydrate)
EC number
231-665-7
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)
Melting point
58.5鐧� (monohydrate)>315鐧� (anhydrous) w some decomp
Boiling point
decomposes to Na2S2O7
Solubility in water
50 g / 100 ml (0鐧�) (of anhydrous)100 g / 100ml (100鐧�) (of anhydrous)
Acidity (pKa)
1.9
Structure
Crystal structure
triclinic (anhydrous)monoclinic (monohydrate)
Hazards
EU Index
Corrosive (C)
Flash point
Non-flammable
Related compounds
Other anions
Sodium sulfate
Other cations
Potassium bisulfate
Related compounds
Sodium bisulfite
Except where noted otherwise, data are given formaterials in their standard state(at 25鐧�, 100kPa)Infobox references
Sodium bisulfate, also sodium hydrogen sulfate, has the chemical formula NaHSO4. The anhydrous form is hygroscopic. Its melting point is poorly defined because it begins to decompose into sodium pyrosulfate and water before it reaches its melting points.
Solutions of sodium bisulfate are acidic, with a 1M solution having pH of 1.4. In some applications, such solutions can be used instead of sulfuric acid solution. For example, from a solution of sodium bisulfate and sodium acetate it is possible to distill acetic acid. Sodium bisulfate solutions will also liberate CO2 from most carbonates.
Sodium bisulfate behaves, to some degree, as if it were a complex of sodium sulfate with sulfuric acid. This is evident if either the anhydrous form or the monohydrate come in contact with ethanol, which causes them to separate into those two components.[1]
Production
Sodium bisulfate is produced by two methods. One method involves mixing stoichiometric quantities of sodium hydroxide and sulfuric acid which react to form sodium bisulfate and water.
NaOH + H2SO4 ? NaHSO4 + H2O
A second production method involves reacting sodium chloride (salt) and sulfuric acid at elevated temperatures to produce sodium bisulfate and hydrogen chloride gas.
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 byproduct of the reaction.
There are only two producers in the USA, Jones Hamilton Company, 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.
Uses
Household cleaners, Sani-Flush, for example (roughly 45%)
Silver pickling
To reduce alkalinity and pH in swimming pools
In pet foods[1]
As a preservative for soil and water samples in analytical laboratory analysis
References
External MSDS
Product Data
^ Merck Index of Chemicals and Drugs, 9th ed. monograph 8330

v?d?eSodium compounds
NaAlO2 NaBH3(CN) NaBH4 NaBr NaBrO4 NaCH3COO NaCN NaC6H5CO2 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 Na2CrO4 Na2Cr2O7 Na2MnO4 Na2MoO4 Na2O Na2O2 Na2O(UO3)2 Na2S Na2SO3 Na2SO4 Na2S2O3 Na2S2O4 Na2S2O5 Na2S2O6 Na2S2O7 Na2S2O8 Na2SeO3 Na2SeO4 Na2SiO3 Na2Te Na2TeO3 Na2Ti3O7 Na2U2O7 NaWO4 Na2Zn(OH)4 Na3N Na3P Na3VO4 Na5P3O10 Na7Fe(CN)6
Categories: Sulfates | Sodium compounds | Acid salts | Photographic chemicals(and so on)

	Ammonium Ceric Nitrate Ammonium ceric nitrate:Formula: (nh4)2ce(no3)6Molecular wt:548.23Min. R)Magnesium perchlorate (g.

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