Scattering Length Density Calculator

Chemical Formula: e.g. use H[2]2O (or D2O) or deuterated water, H[3]2O (or T2O) for tritiated water
Calculate using: density molecular volume
Mass density: g.cm-3    Molecular Volume: Å3   
X-ray energy: keV   
Neutron wavelength: Angstrom
Neutron SLD: 0j * 10-6 Å-2
X-ray SLD: 0j * 10-6 Å-2
The SLD calculations are performed by the periodictable python package:

See also: Periodic Table for Scattering
and the NCNR SLD calculator
To calculate molecular volume: V = Mw / ρ /Na ⋅ (108)3

Mass density of:
Si - 2.33
SiO2 - 2.2
Au - 19.33
Si3N4 - 3.44
D2O (25deg) - 1.107
H2O (25deg) - 0.997
C7H8 (toluene) - 0.87
SiO2 (quartz) - 2.65
Al2O3 (sapphire) - 3.97
C2H4O (PEO) - 1.13
SiC - 3.21
Al - 2.7
Cr - 7.19
V - 6
Ni - 8.908
Cu - 8.96
GaAs - 5.32
C2H3N (acetonitrile) - 0.782
C5O2H8 (PMMA) - 1.18
C8H8 (Polystyrene) - 1.05
C2F4 (Teflon) - 2.2
C82H14O2 (60-PCBM) - 1.61
C72H14O2 (70-PCBM) - 1.61
PDMS - 0.965
(Mostly from Wikipedia)