InChI=1/CH2O/c1-2/h1H2

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Search term: WSFSSNUMVMOOMR
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Inherent Properties, Identifiers and References

ChemSpider ID:	692
Empirical Formula:	CH₂O
Molecular Weight:	30.026
Nominal Mass:	30 Da
Average Mass:	30.026 Da
Monoisotopic Mass:	30.010565 Da

Systematic Name:

formaldehyde

SMILES:

O=C

InChI:

InChI=1/CH2O/c1-2/h1H2

InChIKey:

WSFSSNUMVMOOMR-UHFFFAOYAT

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Wikipedia Article(s)

Formaldehyde is a chemical compound with the formula H₂CO. It is the simplest aldehyde—an organic compound containing a terminal carbonyl group: it consists of exactly one carbonyl. It was first synthesized by the Russian chemist Aleksandr Butlerov (1828-1886), but was conclusively identified by August Wilhelm von Hofmann. Formaldehyde exists in several forms aside from H₂CO: the cyclic trimer trioxane and the polymer paraformaldehyde. It exists in water as the hydrate H₂C(OH)₂. Aqueous solutions of formaldehyde are referred to as formalin. "100%" formalin consists of a saturated solution of formaldehyde (roughly 40% by mass) in water, with a small amount of stabilizer, usually methanol to limit oxidation and polymerization. Formaldehyde is an intermediate in the oxidation (or combustion) of methane as well as other carbon compounds, e.g. forest fires, in automobile exhaust, and in tobacco smoke. It is produced in the atmosphere by the action of sunlight and oxygen on atmospheric methane and other hydrocarbons; thus, it becomes part of smog. Small amounts of formaldehyde are produced as a metabolic byproduct in most organisms, including humans. Read more... or Edit at Wikipedia...

Original Reference(s)

Data Source	External ID(s)
UsefulChem	UC0195

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Supplemental Information

User Data

experimental physchem properties

Melting Point: -15

The melting point of a crystalline solid is the temperature range at which it changes state from solid to liquid. See also: Melting Point

Melting Point: -15

The melting point of a crystalline solid is the temperature range at which it changes state from solid to liquid. See also: Melting Point

Boiling Point: 97

The boiling point of a liquid is the temperature at which the vapor pressure of the liquid equals the environmental pressure surrounding the liquid. See also: Boiling Point

Boiling Point: 97

The boiling point of a liquid is the temperature at which the vapor pressure of the liquid equals the environmental pressure surrounding the liquid. See also: Boiling Point

Boiling Point: -6F

The boiling point of a liquid is the temperature at which the vapor pressure of the liquid equals the environmental pressure surrounding the liquid. See also: Boiling Point

Boiling Point: 96 C

The boiling point of a liquid is the temperature at which the vapor pressure of the liquid equals the environmental pressure surrounding the liquid. See also: Boiling Point

Flash Point: 60(140F)

The flash point of a flammable liquid is the lowest temperature at which it can form an ignitable mixture in air. See also: Flash Point

Flash Point: 60(140F)

The flash point of a flammable liquid is the lowest temperature at which it can form an ignitable mixture in air. See also: Flash Point

Flash Point: NA (Gas)

The flash point of a flammable liquid is the lowest temperature at which it can form an ignitable mixture in air. See also: Flash Point

Flash Point: 56 C

The flash point of a flammable liquid is the lowest temperature at which it can form an ignitable mixture in air. See also: Flash Point

Freezing Point: -134F

No description available

Specific Gravity: 1.083

Specific gravity is defined as the ratio of the density of a given substance to the density of water, when both are at the same temperature. See also: Specific Gravity

Specific Gravity: 1.083

Specific gravity is defined as the ratio of the density of a given substance to the density of water, when both are at the same temperature. See also: Specific Gravity

Refraction Index: 1.3765

The refractive index (or index of refraction) of a medium is a measure for how much the speed of light (or other waves such as sound waves) is reduced inside the medium. See also: Refraction Index

Refraction Index: 1.3765

The refractive index (or index of refraction) of a medium is a measure for how much the speed of light (or other waves such as sound waves) is reduced inside the medium. See also: Refraction Index

Solubility: Miscible

No description available

Ionization Potential: 10.88 eV

No description available

Vapor Pressure: 1 atm

No description available

miscellaneous

Appearance: Nearly colorless gas with a pungent, suffocating odor. [Note: Often used in an aqueous solution (see specific listing for Formalin).]

Visual appearance of the given substance.

Appearance: colourless liquid, typically 37% formaldehyde in water

Visual appearance of the given substance.

Stability: Stable. Strong reducing agent, especially in alkaline solution.Substances to be avoided include strong bases,strong acids, strong oxidising agents, aniline, phenol,isocyanates, anhydrides. Combustible . Light and air sensitive. Polymerizesspontaneously.

Chemical stability occurs when a substance is in a (dynamic) chemical equilibrium with its environment. See also: Chemical Stability

Toxicity: http://ptcl.chem.ox.ac.uk/MSDS/HY/hydrogen peroxide 30pc.html

Toxicity is the degree to which something is able to produce illness or damage to an exposed organism. See also: Toxicity and list of used abbreviations.

Safety: DANGER: Causes GI injury; skin, eye & respiratory irritation

See Chemical Safety

Safety: DANGER: Causes GI injury; skin, eye & respiratory irritation

See Chemical Safety

Safety: DANGER: CORROSIVE, burns skin and eyes

See Chemical Safety

Safety: Safety glasses. Nitrile or butyl rubber gloves. Good ventilation. 50 g kg-1, SKN-RAT LD50 3000 mg kg-1

See Chemical Safety

First Aid: Eye: Irrigate immediately Breathing: Respiratory support

No description available

Exposure Routes: inhalation, skin and/or eye contact

No description available

Symptoms: Irritation eyes, nose, throat, respiratory system; lacrimation (discharge of tears); cough; wheezing; [potential occupational carcinogen]

No description available

Target Organs: Eyes, respiratory system Cancer Site [nasal cancer]

No description available

Incompatibilities and Reactivities: Strong oxidizers, alkalis & acids; phenols; urea [Note: Pure formaldehyde has a tendency to polymerize. Reacts with HCl to form bis-Chloromethyl ether.]

No description available

Personal protection and Sanitation: Skin: No recommendation Eyes: Prevent eye contact Wash skin: No recommendation Remove: No recommendation Change: No recommendation

No description available

Exposure Limits: NIOSH REL : Ca TWA 0.016 ppm C 0.1 ppm [15-minute] See Appendix A OSHA PEL : [1910.1048] TWA 0.75 ppm ST 2 ppm

No description available

Names and Synonyms

Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Redirected by Users, Redirect Approved by Experts

1664-98-8 [RN]

216-775-5 [EINECS/ELINCS]

Aldehyd mravenci [Czech]

Dormol

Formaldehyd [Polish]

Formaldehyde [Wiki]

Formaldehyde (USP)

Formaldehyde [BSI:ISO]

Formalin [Wiki]

Formalin (JP15)

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Database ID(s)

Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Redirected by Users, Redirect Approved by Experts

Caswell No. 465

HSDB 164

NCI-C02799

15512_RIEDEL

15513_RIEDEL

158127_SIAL

16005_RIEDEL

252549_SIAL

33220_RIEDEL

430315_ALDRICH

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Predicted Properties

LogP:	ACD/LogP: 0.35 XLogP: 0.00 ALOGPS: -0.68	# of Rule of 5 Violations:	0
ACD/LogD (pH 5.5):	0.35	ACD/LogD (pH 7.4):	0.35
ACD/BCF (pH 5.5):	1.09	ACD/BCF (pH 7.4):	1.09
ACD/KOC (pH 5.5):	36.93	ACD/KOC (pH 7.4):	36.93
#H bond acceptors:	1	#H bond donors:	0
#Freely Rotating Bonds:	0	Polar Surface Area:	17.07 Å²
Index of Refraction:	1.235	Molar Refractivity:	6.53 cm³
Molar Volume:	43.8 cm³	Polarizability:	2.59 10^-24cm³
Surface Tension:	12.6 dyne/cm	Density:	0.684 g/cm³
Flash Point:	°C	Enthalpy of Vaporization:	22.31 kJ/mol
Boiling Point:	°C at 760 mmHg	Vapour Pressure:	3460 mmHg at 25°C

MeSH

MeSH Descriptor Data

MeSH Heading	Formaldehyde
Concept 1 (Preferred)	Formaldehyde
	Scope Note	A highly reactive aldehyde gas formed by oxidation or incomplete combustion of hydrocarbons. In solution, it has a wide range of uses: in the manufacture of resins and textiles, as a disinfectant, and as a laboratory fixative or preservative. Formaldehyde solution (formalin) is considered a hazardous compound, and its vapor toxic. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p717)
	Term	Formaldehyde
Allowable Qualifiers	AD AE AA AN AI BL CF CS CL DU EC HI IM IP ME PK PD PO RE ST SD TU TO UR CH CT AG
Pharm. Action	Disinfectants
	Fixatives
Registry Number	50-00-0

MeSH Supplementary Concept Data

MeSH Heading	paraform
Concept 1 (Preferred)	paraform
	PubMed Term	paraform
	PubMed Term	paraformaldehyde
	PubMed Term	paraform, 14C-labeled cpd, homopolymer
Registry Number	30525-89-4