Calcium Citrate

Ca₃(C₆H₅O₇)₂

IUPAC: Tricalcium dicitrate

CAS: 813-94-5

Overview

Calcium citrate is a calcium supplement with better absorption on an empty stomach than calcium carbonate. It is also used as a food preservative.

Composition

Element Symbol Atoms Atomic Mass
Hydrogen H 10 1.0080
Carbon C 12 12.0110
Oxygen O 14 15.9990
Calcium Ca 3 40.0780

Elemental Composition

H
Hydrogen ×10
2.0%
C
Carbon ×12
28.9%
O
Oxygen ×14
44.9%
Ca
Calcium ×3
24.1%

Uses

  • • Calcium supplement
  • • Food preservative (E333)
  • • Water softener

Fun Facts

  • ✦ Absorbed better on an empty stomach compared to calcium carbonate, making it preferred for many patients

Structure

SMILES

C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.[Ca+2].[Ca+2].[Ca+2]

Properties

Type
salt
State
solid
Molar Mass
498.43 g/mol
Solubility
0.95 g/L at 25°C

Molecular Descriptors

Exact Mass
497.8948
TPSA
281.0 Ų
H-Bond Donors
2
H-Bond Acceptors
14
Rotatable Bonds
4
Heavy Atoms
29
Complexity
211.0

Related Compounds

Ammonium Bicarbonate

NH₄HCO₃

Ammonium Chloride

NH₄Cl

Ammonium Sulfate

(NH₄)₂SO₄

Barium Carbonate

BaCO₃

Barium Chloride

BaCl₂

Barium Sulfate

BaSO₄

Cadmium Sulfide

CdS

Calcium Acetate

Ca(C₂H₃O₂)₂

Calcium Carbonate

CaCO₃

Calcium Fluoride

CaF₂

Frequently Asked Questions

What is Calcium Citrate?
Calcium Citrate (Ca₃(C₆H₅O₇)₂) is a salt compound with the IUPAC name Tricalcium dicitrate.
What is the molecular weight of Calcium Citrate?
Calcium Citrate has a molar mass of 498.43 g/mol.
What state is Calcium Citrate at room temperature?
Calcium Citrate is a solid at room temperature.
Is Calcium Citrate organic or inorganic?
Calcium Citrate is classified as an inorganic compound.
What elements make up Calcium Citrate?
Calcium Citrate (Ca₃(C₆H₅O₇)₂) is composed of Hydrogen (H), Carbon (C), Oxygen (O), Calcium (Ca).