Formaldehyde
Appearance
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Names | |||
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Preferred IUPAC name
Formaldehyde[1] | |||
Seestematic IUPAC name
Methanal[1] | |||
Ither names
Methyl aldehyde
Methylene glycol Methylene oxide Formalin (aqueous solution) Formol Carbonyl hydride | |||
Identifiers | |||
3D model (JSmol)
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3DMet | B00018 | ||
1209228 | |||
ChEBI | |||
ChEMBL | |||
ChemSpider | |||
DrugBank | |||
EC Nummer | 200-001-8 | ||
Gmelin Reference | 445 | ||
KEGG | |||
MeSH | Formaldehyde | ||
PubChemCID
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RTECS nummer | LP8925000 | ||
UNII | |||
UN nummer | 2209 | ||
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Properties[6] | |||
CH2O | |||
Molar mass | 30.03 g·mol−1 | ||
Appearance | Colorless gas | ||
Density | 0.8153 g/cm3(−20 °C)[2] | ||
Meltin pynt | −92 °C (−134 °F; 181 K) | ||
Bylin pynt | −19 °C (−2 °F; 254 K)[2] | ||
400 g dm−3 | |||
logP | 0.350 | ||
Vapour pressur | < 1 atm[3] | ||
Acidity(pKa) | 13.27[4][5] | ||
Magnetic susceptibility | -18.6·10−6cm3/mol | ||
2.33 D | |||
Structur | |||
Pynt group | C2v | ||
Molecular shape | Trigonal planar | ||
Pharmacology | |||
QP53AX19(WHO) | |||
Hazards | |||
Safety data sheet | MSDS | ||
EU clessification | Toxic (T) Corrosive (C) Carc. Cat. 1 | ||
R-phrases | R23/24/25R34R43R45 | ||
S-phrases | (S1/2)S26S36/37/39S45S51S53S60 | ||
NFPA 704 | |||
Flash pynt | 64 °C (147 °F; 337 K) | ||
430 °C (806 °F; 703 K) | |||
Explosive leemits | 7–73% | ||
Lethal dose or concentration (LD,LC): | |||
LD50(Median dose)
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100 mg/kg (oral, rat)[9] | ||
LC50(Median concentration)
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333 ppm (moose, 2 hr) 815 ppm (rat, 30 min)[10] | ||
LCLo(Lawest published)
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333 ppm (cat, 2 hr)[10] | ||
US heal exposur leemits (NIOSH): | |||
PEL(Permissible)
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TWA 0.75 ppm ST 2 ppm (as formaldehyde an formalin)[7][8] | ||
REL(Recommendit)
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Ca TWA 0.016 ppm C 0.1 ppm [15-minute][7] | ||
IDLH(Immediate danger)
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Ca [20 ppm][7] | ||
Relatit compoonds | |||
Relatitaldehydes
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Acetaldehyde Butyraldehyde | ||
Relatit compoonds
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methanol formic acid | ||
Except whaur itherwise notit, data are gien for materials in thairstaundart state(at 25 °C [77 °F], 100 kPa). | |||
verify(whit is ?) | |||
Infobox references | |||
Formaldehydeis a naiturally occurringorganic compoondwi theformulaCH2O (H-CHO). It is the simplest o thealdehydes(R-CHO) an is an aa kent bi itsseestematic namemethanal.The common name o this substance comes frae its seemilarity an relation taeformic acid.
References
[eedit|eedit soorce]- ↑abNomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013 (Blue Book).Cambridge:The Royal Society of Chemistry.2014. p. 908.doi:10.1039/9781849733069-FP001.ISBN978-0-85404-182-4.
- ↑abFormaldehyde (PDF),SIDS Initial Assessment Report,International Programme on Chemical Safety
- ↑Spence, Robert, and William Wild. "114. The vapour-pressure curve of formaldehyde, and some related data." Journal of the Chemical Society (Resumed) (1935): 506-509
- ↑https://pubchem.ncbi.nlm.nih.gov/compound/formaldehyde#section=Odor-Threshold
- ↑http://chemistry.stackexchange /questions/12232/acidity-of-aldehydes
- ↑Weast, Robert C., ed. (1981).CRC Handbook of Chemistry and Physics(62nd ed.). Boca Raton, FL: CRC Press. pp. C–301, E–61.ISBN0-8493-0462-8.
- ↑abcNIOSHPocket Guide tae Chemical Hazards 0293
- ↑NIOSHPocket Guide tae Chemical Hazards 0294
- ↑http://chem.sis.nlm.nih.gov/chemidplus/rn/50-00-0
- ↑ab"Formaldehyde".Immediately Dangerous to Life and Health.National Institute for Occupational Safety and Health(NIOSH).