Molecule
Name
Trisodium citrate
IUPAC name
Trisodium citrate
Secondary names
Trisodium 2-hydroxypropane-1,2,3-tricarboxylate, Citrosodine, Sodium citrate, Na3C6H5O7
InChI
InChI=1S/C6H8O7.3Na/c7-3(8)1-6(13,5(11)12)2-4(9)10;;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;/q;3*+1/p-3
InChI key
HRXKRNGNAMMEHJ-UHFFFAOYSA-K
CAS number
6858-44-2
Structure and atomic composition
Formula
HOC(CH2COO−)2COO−⋅(Na+)3
Chemical formula
HOC(COO.Na)(CH2COO.Na)2
Structural formula
[CH2](C(=O)[O-])C([CH2]C(=O)[O-])C(=O)[O-].[Na+].[Na+].[Na+]
Charge
0
Unpaired electrons
0
  Atom Name Number
C Carbon 6
H Hydrogen 5
O Oxygen 4
O− Oxide anion 3
Na+ Sodium cation 3
Relations
  • no
Isotope mixture type
terrestrial abundance
Spin type
equilibrated
Molar mass
258.069 g/mol
State STP
solid
State NTP
solid
Protic
protic
Polarity
polar
Molecule symmetry
unknown
Case
nonlinear-polyatomic
Chemical functions
  Function Number
R−C(=O)−O− 3
R−OH 1
R−CH2−R 2
Chemical bonds
  Bond Number
≥C−H 4
≥C−C≤ 2
⪖C−C≤ 3
−O−H 1
≥C−O− 1
>C=O 3
⪖C−O− 3
Na+⋅O−− 3