Solid phase
Official name
amorphous Formaldehyde ice
Secondary names
amorphous H2CO ice
Type
Family
molecular solid
Class
polar molecular solid
Compound type
organic molecular solid
Chemical composition
Formula
$H_2CO$
Chemical formula
H2CO
Elemental formula
C O H2
Isotope mixture type
terrestrial abundance
2.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$H_2CO$ Formaldehyde molecule 1 1.0 1 pure main
Chemical functions
  Function Number
$R=CH_2$ 1
Chemical bonds
  Bond Number
$\eqslantgtr C-H$ 2
$>C=O$ 1
Class
molecular solids with polar molecules (02)
Type
with polyatomic organic polar molecules (CnHm...) (02.01)
Phase name
amorphous H2CO
Phase type
amorphous
Crystal system
amorphous
Molar mass
30.026 $g/mol$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-solid to POM-H above ??K
Phase transitions comments
polymerisation in Polyoxymethylene
Refringence type
isotropic
Pure color
colorless
Diaphaneity
transparent to translucent
Luster
vitreous