Sodium bisulfate

Sodium Bisulfate

	Email		Print
	Bookmark		Link

Sodium bisulfate

Sodium bisulfate, also sodium hydrogen sulfate, has the chemical formula

Chemical formula

A chemical formula is a way of expressing information about the atoms that constitute a particular chemical compound, and how the relationship between those atoms changes in chemical reactions....
NaHSO₄. The anhydrous form is hygroscopic. Its melting point is poorly defined because it begins to decompose into sodium pyrosulfate

Sodium pyrosulfate

Sodium pyrosulfate is a salt of sodium and pyrosulfate, obtained by the dehydration of sodium bisulfate. This is an intermediate stage in the preparation of sulfur trioxide....
and water before it reaches its melting points.

Solutions of sodium bisulfate are acidic, with a 1M solution

Molar solution

A molar solution is one that contains one Mole of solute per litre of solution.The phrase may be prefixed with a number to denote other concentrations....
having pH of 1.4. In some applications, such solutions can be used instead of sulfuric acid

Sulfuric acid

Sulfuric acid, hydrogen2sulfuroxygen4, is a strong mineral acid. It is soluble in water at all concentrations. Sulfuric acid has many applications, and is one of the top products of the chemical industry....
solution.

Discussion

Ask a question about 'Sodium bisulfate'

Start a new discussion about 'Sodium bisulfate'

Answer questions from other users

Full Discussion Forum

Encyclopedia

Sodium bisulfate, also sodium hydrogen sulfate, has the chemical formula

Chemical formula

Sodium pyrosulfate

Molar solution

Sulfuric acid

Sodium acetate

Sodium acetate, is the sodium Salt of acetic acid. It is an inexpensive chemical produced in industrial quantities for a wide range of uses....
it is possible to distill acetic acid

Acetic acid

Acetic acid, CH3COOH, also known as ethanoic acid, is an organic acid which gives vinegar its sour taste and pungent smell. Pure, water-free acetic acid is a colourless liquid that absorbs water from the environment , and freezes at 16.7 Celsius to a colourless crystalline solid....
. Sodium bisulfate solutions will also liberate CO₂

Carbon dioxide

Carbon dioxide is a chemical compound composed of two oxygen atoms covalent bond to a single carbon atom. It is a gas at standard temperature and pressure and exists in Earth's atmosphere in this state....
from most carbonates.

Sodium bisulfate behaves, to some degree, as if it were a complex of sodium sulfate

Sodium sulfate

Sodium sulfate is the sodium salt of sulfuric acid. Anhydrous, it is a white crystalline solid of formula Na2SO4 known as the mineral thenardite; the hydrate Na2SO4?10H2O has been known as Glauber's salt or, historically, sal mirabilis since the 17th century....
with sulfuric acid

Sulfuric acid

Ethanol

Ethanol, also called ethyl alcohol, pure alcohol, grain alcohol, or drinking alcohol, is a volatility , flammable, colorless liquid....
, which causes them to separate into those two components.

Production

Sodium bisulfate is produced by two methods. One method involves mixing stoichiometric quantities of sodium hydroxide

Sodium hydroxide

Sodium hydroxide , also known as lye, caustic soda and sodium hydrate, is a caustic metallic Base . Sodium hydroxide forms a strong alkaline solution when dissolved in a solvent such as water, however, only the hydroxide ion is basic....
and sulfuric acid

Sulfuric acid

Water

Water is a common chemical substance that is essential for the survival of all known forms of life. In typical usage, water refers only to its liquid form or States of matter, but the substance also has a solid state, ice, and a gaseous state, water vapor or steam....
.

NaOH + H₂SO₄ ? NaHSO₄ + H₂O

A second production method involves reacting sodium chloride

Sodium chloride

Sodium chloride, also known as common salt, table salt, or halite, is a chemical compound with the chemical formula SodiumChlorine....
(salt) and sulfuric acid at elevated temperatures to produce sodium bisulfate and hydrogen chloride

Hydrogen chloride

The Chemical compound hydrogen chloride has the chemical formula HydrogenChlorine. At room temperature, it is a colorless gas, which forms white fumes of hydrochloric acid upon contact with atmospheric humidity....
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

Hydrochloric acid

Hydrochloric acid is the solution of hydrogen chloride in water. It is a highly corrosive, strong acid mineral acid and has major industrial uses....
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
Pickling (metal)

Pickling is a treatment of metallic surfaces in order to remove impurities, stains, rust or Fouling with a solution called pickle liquor, containing strong acids, before subsequent processing, such as extrusion, rolling, painting, galvanization or plating with tin or chromium....
To reduce alkalinity
Alkalinity

Alkalinity or AT is a measure of the ability of a solution to neutralize acids to the equivalence point of carbonate or bicarbonate....
and pH
PH

pH is a measure of the Acid or Base of a solution. It is defined as the cologarithm of the Activity of dissolved hydrogen ions . Hydrogen ion activity coefficients cannot be measured experimentally, so they are based on theoretical calculations....
in swimming pools
In pet foods
As a preservative for soil and water samples in analytical laboratory analysis