Anion Contributions to Entropies of Solids at 298 K

 Charge on Positive Ion
Anion+1+2+3+4
F- 23 20 17 21
Cl- 42 34 29 34
Br- 54 46 42 38
I- 61 57 52 54
O2- 10 2 2 4
S2- 34 21 5 10
 Charge on Positive Ion
Anion+1+2+3+4
Se2- 67 48 33  
Te2- 69 51 38  
OH- 21 19 13  
CN- 30 25    
NO2- 74 63    
NO3- 91 74 63 59
CO32- 64 48 33  
 Charge on Positive Ion
Anion+1+2+3+4
HCO3- 73 54 42  
C2O42- 92 74 59  
ClO3- 104 84    
BrO3- 111 96 79  
IO3- 107 92    
MnO4- 133 117    
SO32- 79 62 46  
SO42- 92 72 57 50
CrO42- 110 88    
PO43- 100 71 50  

Reference: Dasent, p. 99; W.M. Latimer, "Oxidation Potentials," 2nd ed., Prentice-Hall, NY, 1952.