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Sodium bisulfate
From Wikipedia, the free encyclopedia
Jump to navigationJump to search
Not to be confused with Sodium bisulfite.
Sodium bisulfate
One sodium cation and one hydrogensulfate anion
Ball-and-stick model of the component ions
Sodium bisulfate, as a white powder, turns indicator paper red.
Names
IUPAC name
Sodium hydrogen sulfate
Other names
Sodium acid sulfate
Bisulfate of soda
Identifiers
CAS Number
7681-38-1 ☑
10034-88-5 (monohydrate) ☑
3D model (JSmol)
Interactive image
ChemSpider
56397 ☑
ECHA InfoCard100.028.787
EC Number231-665-7
E numberE514(ii) (acidity regulators, ...)
PubChem CID
516919
RTECS numberVZ1860000
CompTox Dashboard (EPA)
DTXSID3033983 Edit this at Wikidata
InChI[show]
SMILES[show]
Properties
Chemical formula
NaHSO4
Molar mass120.06 g/mol (anhydrous)
138.07 g/mol (monohydrate)
Appearancewhite solid
Density2.742 g/cm3 (anhydrous)
1.8 g/cm3 (monohydrate)
Melting point58.5 °C (137.3 °F; 331.6 K) (monohydrate)
315 °C (anhydrous)
Boiling pointdecomposes to Na2S2O7 (+ H2O) at 315 °C (599 °F; 588 K)
Solubility in water
28.5 g/100 mL (25 °C)
100 g/100 mL (100 °C)
SolubilityInsoluble in ammonia
Acidity (pKa)1.99
Structure
Crystal structure
triclinic (anhydrous)
monoclinic (monohydrate)
Hazards
Safety data sheetExternal MSDS
R-phrases (outdated)R34 R37 R41
S-phrases (outdated)S26 S36 S37 S39 S45
NFPA 704
NFPA 704 four-colored diamond
021
Flash pointNon-flammable
Related compounds
Other anions
Sodium sulfate
Other cations
Potassium bisulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☑ verify (what is ☑☒ ?)
Infobox references
Sodium bisulfate, also known as sodium hydrogen sulfate,[1] is the sodium salt of the bisulfate anion, with the molecular formula NaHSO4. Sodium bisulfate is an acid salt formed by partial neutralization of sulfuric acid by an equivalent of sodium base, typically either in the form of sodium hydroxide (lye) or sodium chloride (table 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 around 1.
Sodium bisulfate
From Wikipedia, the free encyclopedia
Jump to navigationJump to search
Not to be confused with Sodium bisulfite.
Sodium bisulfate
One sodium cation and one hydrogensulfate anion
Ball-and-stick model of the component ions
Sodium bisulfate, as a white powder, turns indicator paper red.
Names
IUPAC name
Sodium hydrogen sulfate
Other names
Sodium acid sulfate
Bisulfate of soda
Identifiers
CAS Number
7681-38-1 ☑
10034-88-5 (monohydrate) ☑
3D model (JSmol)
Interactive image
ChemSpider
56397 ☑
ECHA InfoCard100.028.787
EC Number231-665-7
E numberE514(ii) (acidity regulators, ...)
PubChem CID
516919
RTECS numberVZ1860000
CompTox Dashboard (EPA)
DTXSID3033983 Edit this at Wikidata
InChI[show]
SMILES[show]
Properties
Chemical formula
NaHSO4
Molar mass120.06 g/mol (anhydrous)
138.07 g/mol (monohydrate)
Appearancewhite solid
Density2.742 g/cm3 (anhydrous)
1.8 g/cm3 (monohydrate)
Melting point58.5 °C (137.3 °F; 331.6 K) (monohydrate)
315 °C (anhydrous)
Boiling pointdecomposes to Na2S2O7 (+ H2O) at 315 °C (599 °F; 588 K)
Solubility in water
28.5 g/100 mL (25 °C)
100 g/100 mL (100 °C)
SolubilityInsoluble in ammonia
Acidity (pKa)1.99
Structure
Crystal structure
triclinic (anhydrous)
monoclinic (monohydrate)
Hazards
Safety data sheetExternal MSDS
R-phrases (outdated)R34 R37 R41
S-phrases (outdated)S26 S36 S37 S39 S45
NFPA 704
NFPA 704 four-colored diamond
021
Flash pointNon-flammable
Related compounds
Other anions
Sodium sulfate
Other cations
Potassium bisulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☑ verify (what is ☑☒ ?)
Infobox references
Sodium bisulfate, also known as sodium hydrogen sulfate,[1] is the sodium salt of the bisulfate anion, with the molecular formula NaHSO4. Sodium bisulfate is an acid salt formed by partial neutralization of sulfuric acid by an equivalent of sodium base, typically either in the form of sodium hydroxide (lye) or sodium chloride (table 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 around 1.
