Solid phase
Official name
Tin
Secondary names
beta-tin; white tin; beta-Sn
CAS number
7440-31-5
Type
Family
metallic solid
Class
true metal
Compound type
elemental solid
Chemical composition
Formula
$\beta - Sn$
Chemical formula
Sn
Elemental formula
Sn
Isotope mixture type
terrestrial abundance
2.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Sn$ Tin element 1 1.0 1 constituent element main
Class
true metals (13)
Type
homovalent monolayer metals (13.01)
Phase name
$\beta$-Tin
Phase type
crystalline
Crystal system
tetragonal
Crystal class
ditetragonal-dipyramidal
Crystal class symbol
4/mmm (D4h)
Crystal spacegroup
I4(1)/amd
Molar mass
118.71 $g/mol$
Density
7.29 $g/cm^3$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid liquid Sn 231.93°C (505.08 K)
solid-solid alpha-Sn 13.2°C (286.35K)
Refringence type
uniaxial
Pure color
white
Color
white, tin-white
Diaphaneity
opaque
Luster
metallic
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