Atomic and nuclear properties of solid carbon dioxide (dry ice, CO2)
QuantityValueUnits ValueUnits
<Z/A> 0.49989     
Specific gravity 1.563 g cm-3   
Mean excitation energy 85.0 eV   
Minimum ionization 1.787 MeV g-1cm2 2.793 MeV cm-1
Nuclear collision length 60.7 g cm-2 38.86 cm
Nuclear interaction length 88.9 g cm-2 56.90 cm
Pion collision length 87.9 g cm-2 56.25 cm
Pion interaction length 120.8 g cm-2 77.26 cm
Radiation length 36.19 g cm-2 23.16 cm
Critical energy 69.99 MeV (for e-) 68.11 MeV (for e+)
Molière radius 10.97 g cm-2 7.016 cm
Plasma energy ℏωp 25.47 eV   
Muon critical energy 927. GeV   
Composition:
Elem ZAtomic frac* Mass frac
C
6
2.00
0.272916
O
8
4.00
0.727084
* calculated from mass fraction data

For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PDF TEXT
Table of muon dE/dx and Range: PDF TEXT
Explanation of some entries
Note: Sublimation point 194.7 K = -78.4 C