Atomic and nuclear properties of materials:
Butane (C4H10)
QuantityValueUnits ValueUnits
<Z/A> 0.59497     
Specific gravity (20° C, 1 atm) 2.49E-03 g cm-3   
Mean excitation energy 48.3 eV   
Minimum ionization 2.278 MeV g-1cm2 5.670E-03 MeV cm-1
Nuclear collision length 55.5 g cm-2 2.231E+04 cm
Nuclear interaction length 77.1 g cm-2 3.098E+04 cm
Pion collision length 83.2 g cm-2 3.342E+04 cm
Pion interaction length 109.0 g cm-2 4.377E+04 cm
Radiation length 45.23 g cm-2 1.817E+04 cm
Critical energy 131.26 MeV (for e-) 128.44 MeV (for e+)
Molière radius 7.31 g cm-2 2935. cm
Plasma energy 1.11 eV   
Muon critical energy 1557. GeV   
Melting point 134.9 K -138.2 C
Boiling point @ 1 atm 272.6 K -0.5000 C
Composition:
Elem ZAtomic frac* Mass frac*
H
1
10.00
0.173408
C
6
4.00
0.826592
* calculated from mass fraction data.

Explanation of some entries
For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PS PDF TEXT
Table of muon dE/dx and Range: PS PDF TEXT