Skip to main content

Formaldehyde

ADVERTISEMENT
Identification
Molecular formula
CH2O
CAS number
50-00-0
IUPAC name
formaldehyde
State
State

Formaldehyde is a gas at room temperature, but it is commonly used in solution form (formalin) for industrial and laboratory purposes.

Melting point (Celsius)
-92.00
Melting point (Kelvin)
181.10
Boiling point (Celsius)
-19.50
Boiling point (Kelvin)
253.70
General information
Molecular weight
30.03g/mol
Molar mass
30.0310g/mol
Density
0.8153g/cm3
Appearence

Formaldehyde is a colorless gas at room temperature with a pungent, irritating odor. It is also soluble in water, which often results in a solution known as formalin used for preservation purposes.

Comment on solubility

Solubility of Formaldehyde (CH2O)

Formaldehyde, represented by the chemical formula CH2O, is known for its remarkable solubility characteristics. This highly reactive aldehyde is soluble in:

  • Water: Formaldehyde is miscible with water in all proportions, forming a clear solution. This property is largely due to its ability to form hydrogen bonds, enhancing its interactive capabilities with other polar molecules.
  • Alcohols: It dissolves readily in various alcohols, contributing to the creation of useful derivatives and solutions.
  • Organic Solvents: While less common, formaldehyde can also dissolve in some organic solvents, though this varies widely depending on the solvent's polarity.

Furthermore, it is noteworthy that formaldehyde's solubility can be influenced by several factors, including:

  • Temperature: Higher temperatures generally enhance solubility in most solvents.
  • Concentration: The concentration of formaldehyde in water can reach significant levels, meaning it can exist in both gaseous and aqueous forms.

In summary, formaldehyde's excellent solubility in water and other solvents makes it a versatile compound in chemical reactions and applications. Its ability to blend seamlessly with polar solvents highlights its extensive utility in the laboratory and industrial processes.

Interesting facts

Interesting Facts about Formaldehyde

Formaldehyde, commonly represented as HCHO, is a fascinating compound with multiple applications and implications in various fields. Known primarily as a colorless gas with a pungent odor, this chemical compound serves an essential role in numerous industrial processes and scientific research.

Key Applications:

  • Preservation: Formaldehyde is widely used as a preservative in laboratories, particularly in the preparation of biological specimens.
  • Building Materials: It is a key ingredient in the manufacturing of resin adhesives, which are often utilized in plywood, particleboard, and other composite wood products.
  • Medical Uses: In medicine, formaldehyde solutions are often used for sterilization and disinfection, particularly in surgical settings.

Health and Safety:

While formaldehyde plays an important role in industry and science, it's critical to be aware of its potential health effects:

  • Exposure to formaldehyde can lead to irritation of the eyes, nose, and throat.
  • It is classified as a probable human carcinogen, which means caution is necessary when handling formaldehyde-containing products.

Cultural References:

Interestingly, formaldehyde has woven its way into popular culture. It is often referenced in literature and film, sometimes evoking a sense of the macabre due to its association with embalming and preservation.

Scientific Significance:

Formaldehyde has also made significant contributions to our understanding of organic chemistry, particularly in the study of chemical reactions:

  • It serves as a precursor to many other chemical compounds, including plastics and textiles.
  • Formaldehyde reactions are pivotal in synthetic organic chemistry, providing insight into functional group transformations.

In conclusion, formaldehyde is more than just a simple chemical; it is a compound that bridges practical applications, health considerations, and scientific exploration. As with any chemical, understanding its properties and effects can lead to safer and more innovative uses in various domains.

Synonyms
formaldehyde
formalin
methanal
Paraformaldehyde
50-00-0
formol
Oxomethane
Paraform
Methylene oxide
Formic aldehyde
Oxymethylene
Superlysoform
Lysoform
Methyl aldehyde
Fannoform
Formalith
30525-89-4
Formalina
Methaldehyde
Oxomethylene
Morbicid
Karsan
Formaldehyd
Formaline
Aldehyde formique
FYDE
Formaldehyde, gas
Aldeide formica
Oplossingen
Formalin 40
Dormol
Rcra waste number U122
Aldehyd mravenci
Formalin-loesungen
Formalaz
Caswell No. 465
NCI-C02799
CH2O
UN 2209 (formalin)
Formaldehyde (gas)
UN 1198
Formaline [German]
Formalina [Italian]
Oplossingen [Dutch]
HCHO
CCRIS 315
FORMYL GROUP
HSDB 164
Fordor
NSC 298885
CHEBI:16842
Aldehyd mravenci [Czech]
Aldeide formica [Italian]
AI3-26806
Aldehyde formique [French]
BFV
Formalin-loesungen [German]
Formaldehyd [Czech, Polish]
EPA Pesticide Chemical Code 043001
NSC-298885
Formaldehyde (USP)
Formaldehyde [USP]
Aldehyde formique [ISO-French]
DTXSID7020637
UNII-1HG84L3525
EINECS 200-001-8
UN1198
UN2209
RCRA waste no. U122
1HG84L3525
EC 200-001-8
MFCD00003274
NSC298885
DSSTox_CID_637
FORMALDEHYDE (II)
FORMALDEHYDE [II]
FORMALDEHYDE (IARC)
FORMALDEHYDE [IARC]
DSSTox_RID_82549
Paraformic aldehyde
DSSTox_GSID_47796
Formaldehyd (CZECH, POLISH)
Aldehyde formique (ISO-French)
Formaldehido
Veracur
MFCD00133991
Methan 21
Formic aldehyde
carbonyl
formaidehyde
formaldeyde
formaldhyde
methanon
paraformaldehyd
paraformaldehye
Formadehyde
Formaldehye
Formalinum
Durine
paraformaidehyde
Formaldehyde (37% w/w aq. soln., Stabilized 7-8% of Methanol)
Nasal Catarrh
para formaldehyde
paraform-aldehyde
Para-formaldehyde
Sur-Hoof
Formaldehyde Solution (36.5 - 38% in Water) (Stabilized with ~10-15% Methanol)
F-gen
Hyperband (TN)
Formalin [JAN]
Daminozide metabolite
CARBONMONOXIDE
HCOH
28 - Formaldehyde
Floguard 1015
Formalin (JP18)
53026-80-5
CARBON-MONOXIDE
Formaldehyde; Methanal
Hercules 37M6-8
H2CO
long-chain fatty aldehyde
WLN: VHH
Formaldehyde [BSI:ISO]
FORMALDEHYDE [MI]
Paraformaldehyde (JP17)
bmse000256
Epitope ID:116196
Formaldehyde, 4% in PBS
Formaldehyde, methanol-free
CHEMBL1255
FORMALDEHYDE [VANDF]
Pesticide Code: 043001
BIDD:ER0493
DTXCID30637
GTPL4196
DTXSID90937755
CHEBI:188447
NSC28424
STR00013
Tox21_111160
Tox21_302438
FM 282
AKOS008967440
DB03843
Formaldehyde 1000 microg/mL in Water
FP36729
NA 9202
UN 1016
UN 2209
NCGC00255116-01
8013-13-6
BP-21234
E240
Formaldehyde (37per cent w/w aq. soln.)
F0622
NS00007685
P0018
C00067
C22406
D00017
D01494
A827922
Q161210
SR-01000944454
SR-01000944454-1
Q27110014
200-001-8
formaldehyde;formaldehyde [bsi:iso];methanal;formaldehyde (act. 37%);formalin;formaldehyde formaldehyde [bsi:iso] methanal formaldehyde (act. 37%) formalin