Solid phase
Official name
Cellulose
CAS number
9004-34-6
Family
molecular solid
Class
polar molecular solid
Compound type
homopolymer
Terminal function
$OH$ and $H$
Monomer number
n
Molar mass
162.1406 per mer unit $g/mol$
Polymolecularity index
1
Formula
$HO((C_5H_5O)_{cycl}CH_2(OH)_3O)_nH$
Chemical formula
H2O(C6H10O5)n
Elemental formula
(C)6-n (O)6-n (H)12-n
Isotope mixture type
terrestrial abundance
None
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
D-$C_{6}H_{12}O_{6}$ D-Glucose molecule 1 - n 1 constituent mer main
Composition comments
The chain can contain from several hundred to many thousands D-glucose unit. The D-glucose formula is C6H12O6 while for Cellulose it correspond to C6H10O5
Chemical functions
  Function Number
$R-OH$ 1
$R-OH$ 5
$R-O-R$ 1
$R-CH_2-R$ 1
Chemical bonds
  Bond Number
$\geq C-O-$ n
$-O-H$ 2
$-O-H$ 5
$\geq C-H$ 7
$\geq C-O-$ 7
$\geq C-C \leq$ 5
Class
molecular solids with polar molecules (02)
Phase name
various
Phase type
various
Crystal system
various
Crystal class
various
Crystal class symbol
various
Crystal spacegroup
various
Comments
There is different crystalline structures of cellulose. The natural are cellulose Iα and Iβ but generally consist of a mix between amorphous and crystaline structure
Molar mass
162.1406 $g/mol$
Density
1.5 $g/cm^3$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid 533–543 K (start to decompose)
Pure color
white