Solid phase
Official name
Yttrium carbonate trihydrate
Secondary names
Yttrium(III) carbonate trihydrate; Diyttrium tricarbonate trihydrate; Y(CO3)3 trihydrate; Tengerite-(Y)
CAS number
5970-44-5
Type
Family
ionic solid
Class
alkali salt
Compound type
carbonate
Chemical composition
Formula
$Y_2(CO_3)_3 \bullet 3H_2O$
Chemical formula
Y2(CO3)3•3H2O
Elemental formula
(Y3+)2 C3 O6 (O-)6 H6
Isotope mixture type
terrestrial abundance
16.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Y^{3+}$ Yttrium cation element 2 0.25 1 constituent cation main
$CO_3^{2-}$ Carbonate ion molecule 3 0.375 1 molecular ion main
$H_2O$ Water molecule 3 0.375 1 hydration main
Chemical functions
  Function Number
$(CO_3)^{2-}$ 3
$R-OH$ 2
Chemical bonds
  Bond Number
$\cdot (\cdot) Y^{3+} \cdot O^{-}-$ 6
$-O \dots H-$ 6
$\eqslantgtr C-O^-$ 2
$>C=O$ 1
$-O-H$ 2
$\dddot - \dddot - C \dddot - O^{-2/3}$ 3
Class
alkali salts (06)
Type
hydrated simple alkali salts (06.04)
Equivalent mineral
Tengerite-(Y)
Phase type
crystalline
Crystal system
orthorhombic
Crystal class
dipyramidal
Crystal class symbol
mmm (D2h)
Crystal spacegroup
Pnnm
Molar mass
405.885 $g/mol$
Density
3.11 (calculated) $g/cm^3$
State NTP
solid
Refringence type
biaxial
Refringence sign
positive
Birefringence
0.029
Refraction index $n_{\alpha}$
1.587
Refraction index $n_{\beta}$
1.57
Refraction index $n_{\gamma}$
1.616
Dispersion V
r > v
Pure color
white
Color
white
Diaphaneity
translucent
Luster
earthy
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