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Calcium hydrogensulfate

Chemical structure of calcium hydrogensulfate

Calcium hydrogensulfate is an inorganic compound with formula Ca(HSO4)2.

Table of contents
  1. 1Names
  2. 2Formulae and structures
  3. 3Properties
  4. 4Constituents
  5. 5Thermodynamic properties
  6. 6Solubility
  7. 7Preparations
  8. 8Chemical reactions
  9. 9Related substances
  10. 10Related categories

Names

List of substance names

Nomenclature
Name
Typical name
Calcium hydrogensulfate
Compositional nomenclature
Calcium hydrogensulfate
Calcium bis(hydrogensulfate)
Additive nomenclature
Calcium hydroxidotrioxidosulfate(1−)
Hydrogen nomenclature
Calcium hygrogen(tetraoxidosulfate)(1−)
Other names
Calcium bisulfate

Formulae and structures

List of formulae

Formula name
Formula
Typical formula
Ca(HSO4)2
Compositional formula
Ca(HSO4)2
Structural formula
Chemical structure of calcium hydrogensulfate
Other structural formulas
Chemical structure of calcium hydrogensulfate with double bonds
Lewis structure
Lewis structure of calcium hydrogensulfate
Colored Lewis structure
Colored Lewis structure of calcium hydrogensulfate

Properties

List of substance properties

Item
Value
Name
Calcium hydrogensulfate
Formula
Ca(HSO4)2
Appearance
Colorless solid
Odor
Odorless
Molar mass
234.21 g/mol
Density
Melting point
Boiling point

Constituents

Constituent ions

IonNameCharge numberNumber
Ca2+Calcium ion21
HSO4Hydrogensulfate ion-12

Constituent atoms

AtomNameOxidation stateNumber
CaCalcium+21
HHydrogen+12
SSulfur+62
OOxygen−28

Ratio of atoms

AtomAtomic weightNumberAtomic ratioWeight ratio
Ca40.07817.69%17.11%
H1.008215.38%0.86%
S32.06215.38%27.38%
O15.999861.54%54.65%
CaHSOAtomic ratio
CaSOWeight ratio

Thermodynamic properties

Phase transition properties

Item
Value
Enthalpy of fusion
Enthalpy of vaporization
Enthalpy of vaporization at 25°C
Enthalpy of other transition

Solubility

Qualitative solubility

Reactive
Miscible
Very soluble
Soluble
Slightly soluble
Very slightly soluble
Insoluble

Preparations

Reaction of acid and base

The reaction of sulfuric acid and calcium hydroxide yields calcium hydrogensulfate and water.

Reaction of base and acidic oxide

The reaction of calcium hydroxide and sulfur trioxide yields calcium hydrogensulfate.

Reaction of basic oxide and acid

The reaction of calcium oxide and sulfuric acid yields calcium hydrogensulfate and water.

Reaction of salt of weak acid and strong acid

The reaction of salt of weak acid and strong acid can yield calcium hydrogensulfate.

Reaction of salt of weak base and strong base

The reaction of salt of weak base and strong base can yield calcium hydrogensulfate.

Reaction of salt and acid

The reaction of salt and acid can yield calcium hydrogensulfate.

Reaction of salt, acidic oxide, and water

The reaction of salt, acidic oxide, and water can yield calcium hydrogensulfate.

Reaction of active metal and acid

The reaction of calcium and sulfuric acid yields calcium hydrogensulfate and hydrogen.

Chemical reactions

Electrolytic dissociation

Electrolytic dissociation of calcium hydrogensulfate yields calcium ion and anion.

Electrolytic dissociation of calcium hydrogensulfate
Ca(HSO4)2Calcium hydrogensulfate
Ca2+Calcium ion + 2H+Hydrogen ion + 2SO42−Sulfate ion

Reaction with base

The reaction of calcium hydrogensulfate and base yields calcium sulfate and water.

Reaction with dehydrating acid

The reaction of calcium hydrogensulfate and dehydrating acid yields salt, sulfur trioxide, and water.

Reaction with reducing species

The reaction of reducing species and calcium hydrogensulfate yields a variety of products.

Reaction with oxidizable species

The reaction of oxidizable species and calcium hydrogensulfate yields a variety of products.

Reaction with oxidizing species

The reaction of calcium hydrogensulfate and oxidizing species yields a variety of products.

Precipitation reaction

When a certain chemical species is present in aqueous solution, it reacts with calcium hydrogensulfate to form a precipitate.

Decomposition

Decomposition of calcium hydrogensulfate yields a variety of products.

Electrolysis of aqueous solution

Electrolysis of aqueous calcium hydrogensulfate yields a variety of products.

Electrolysis of water
ΔrG474.258 kJ/mol
K0.82 × 10−83
pK83.09