Atomic and nuclear properties of materials:
Deuterium gas (D₂) (D )

Quantity	Value	Units	Value	Units
Atomic number	1
Atomic mass	2.01410177803(8)	g mole-1
Specific gravity (20° C, 1 atm)	1.68E-04	g cm-3
Minimum ionization	2.053	MeV g-1cm2	3.444E-04	MeV cm-1
Nuclear collision length	51.3	g cm-2	3.062E+05	cm
Nuclear interaction length	71.8	g cm-2	4.280E+05	cm
Radiation length	125.98	g cm-2	7.512E+05	cm
Critical energy	345.50	MeV (for e-)	339.03	MeV (for e+)
Molière radius	7.73	g cm-2	4.611E+04	cm
Plasma energy	0.26	eV
Muon critical energy	1858.	GeV
Boiling point @ 1 atm	23.65	K	-249.5	C
Triple point	18.69	K	-254.5	C
Index of refraction (@ STP, Na D)	138.	(n-1)x106

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
Explanation of some entries
Note: CODATA2006 deuteron and e mass sum less atomic ground state binding energy.
In D₂, mass is further reduced by 0.00000000245 u, half of the molecular binding energy. (Calculations by E. Bergren.)
Table of isotopes
x ray mass attenuation coefficients