Atomic and nuclear properties of octane (C8H18)
QuantityValueUnits ValueUnits
<Z/A> 0.57778     
Specific gravity 0.7026 g cm-3   
Mean excitation energy 54.7 eV   
Minimum ionization 2.123 MeV g-1cm2 1.492 MeV cm-1
Nuclear collision length 55.8 g cm-2 79.44 cm
Nuclear interaction length 77.8 g cm-2 110.7 cm
Pion collision length 83.4 g cm-2 118.8 cm
Pion interaction length 109.6 g cm-2 156.1 cm
Radiation length 45.00 g cm-2 64.05 cm
Critical energy 104.65 MeV (for e-) 101.94 MeV (for e+)
Molière radius 9.12 g cm-2 12.98 cm
Plasma energy ℏωp 18.36 eV   
Muon critical energy 1312. GeV   
Melting point 214.4 K -58.70 C
Boiling point @ 1 atm 398.8 K 125.6 C
Composition:
Elem ZAtomic frac* Mass frac
H
1
18.00
0.158821
C
6
8.00
0.841179
* 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