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ഫോർമാൾഡിഹൈഡ്

ഫോർമാൾഡിഹൈഡ്
Skeletal fomula of formaldehyde with explicit hydrogens added
Skeletal fomula of formaldehyde with explicit hydrogens added
Spacefill model of formaldehyde
Spacefill model of formaldehyde
Ball and stick model of formaldehyde
Names
Preferred IUPAC name
Formaldehyde[1]
Systematic IUPAC name
Methanal[1]
Other names
Methyl aldehyde
Methylene glycol
Methylene oxide
Formalin (aqueous solution)
Formol
Carbonyl hydride
Identifiers
3D model (JSmol)
3DMet
Beilstein Reference 1209228
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.000.002 വിക്കിഡാറ്റയിൽ തിരുത്തുക
EC Number
  • 200-001-8
Gmelin Reference 445
IUPHAR/BPS
KEGG
MeSH (({value))}
RTECS number
  • LP8925000
UNII
UN number 2209
CompTox Dashboard (EPA)
InChI
 
SMILES
 
Properties[6]
തന്മാത്രാ വാക്യം
Molar mass 0 g mol−1
Appearance Colorless gas
സാന്ദ്രത 0.8153 g/cm3 (−20 °C)[2]
ദ്രവണാങ്കം
ക്വഥനാങ്കം
400 g dm−3
log P 0.350
ബാഷ്പമർദ്ദം < 1 atm[3]
അമ്ലത്വം (pKa) 13.27 [4][5]
-18.6·10−6 cm3/mol
Dipole moment
1.85 D
Structure
Point group
C2v
Trigonal planar
Hazards
Safety data sheet MSDS
GHS pictograms GHS05: Corrosive GHS06: Toxic GHS08: Health hazard
GHS Signal word Danger
GHS hazard statements
H301, H311, H331, H314, H317, H335, H336, H341, H350, H370
GHS precautionary statements
P201, P280, P303+361+353, P304+340, P309+310, P305+351+338
Flash point (({value))}
Autoignition
temperature
Explosive limits 7–73%
Lethal dose or concentration (LD, LC):
LD50 (median dose)
100 mg/kg (oral, rat)[9]
LC50 (median concentration)
333 ppm (mouse, 2 hr)
815 ppm (rat, 30 min)[10]
LCLo (lowest published)
333 ppm (cat, 2 hr)[10]
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 0.75 ppm ST 2 ppm (as formaldehyde and formalin)[7][8]
REL (Recommended)
Ca TWA 0.016 ppm C 0.1 ppm [15-minute][7]
IDLH (Immediate danger)
Ca [20 ppm][7]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| colspan=2 |  checkY verify (what is: checkY/☒N?)

CH2O (H-CHO) എന്ന രാസസൂത്രത്തോട് കൂടിയ ഒരു കാർബണിക സംയുക്തമാണ് ഫോർമാൾഡിഹൈഡ്. ഏറ്റവും ലളിത ഘടനയോടു കൂടിയ ഒരു അൾഡിഹൈഡ് ആണ് ഇത്. പല രാസ സംയുക്തങ്ങളുടേയും ഒരു നിർമ്മാണത്തിലെ ഒരു പ്രധാന അഭികാരകമായ ഈ സംയുക്തം റസീനുകളുടെ നിർമ്മാണത്തിൽ വ്യാപകമായി ഉപയോഗിക്കപ്പെടുന്നു.

വ്യാവസായിക ലോകത്ത് ഒഴിച്ചുകൂടാനാവാത്ത ഫോർമാൾഡിഹൈഡ് മനുഷ്യരിൽ കടുത്ത ആരോഗ്യപ്രശ്നങ്ങൾ സൃഷ്ടിക്കുന്നുണ്ട്.[11][12][13][14]

ഫോർമാലിൻ

[തിരുത്തുക]

ഫോർമാൾഡിഹൈഡിന്റെ ജലീയലായനിയാണ് ഫോർമാലിൻ. ഇതിന്റെ 40% പൂരിതലായനി ( 40% formaldehyde by volume or 37% by mass) "100% ഫോർമാലിൻ" എന്നറിയപ്പെടുന്നു.


അവലംബം

[തിരുത്തുക]
  1. 1.0 1.1 Nomenclature 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. ISBN 978-0-85404-182-4.
  2. 2.0 2.1 Formaldehyde (PDF) Archived 2018-06-13 at the Wayback Machine., SIDS Initial Assessment Report, International Programme on Chemical Safety
  3. 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
  4. "PubChem Compound Database; CID=712". National Center for Biotechnology Information. Retrieved 2017-07-08.
  5. organic chemistry - Acidity of aldehydes - Chemistry Stack Exchange
  6. ഫലകം:RubberBible62nd
  7. 7.0 7.1 7.2 "NIOSH Pocket Guide to Chemical Hazards #0293". National Institute for Occupational Safety and Health (NIOSH).
  8. "NIOSH Pocket Guide to Chemical Hazards #0294". National Institute for Occupational Safety and Health (NIOSH).
  9. ChemIDplus - 50-00-0 - WSFSSNUMVMOOMR-UHFFFAOYSA-N - Formaldehyde [USP] - Similar structures search, synonyms, formulas, resource links, and other chemical information
  10. 10.0 10.1 "Formaldehyde". Immediately Dangerous to Life and Health. National Institute for Occupational Safety and Health (NIOSH).
  11. "Formaldehyde", Formaldehyde, 2-Butoxyethanol and 1-tert-Butoxypropan-2-ol (PDF), IARC Monographs on the Evaluation of Carcinogenic Risks to Humans 88, Lyon, France: International Agency for Research on Cancer, 2006, pp. 39–325, ISBN 92-832-1288-6 "Formaldehyde (gas)", Report on Carcinogens, Eleventh Edition (PDF), U.S. Department of Health and Human Services, Public Health Service, National Toxicology Program, 2005
  12. Harris, Gardiner (10 June 2011). "Government Says 2 Common Materials Pose Risk of Cancer". New York Times. Retrieved 2011-06-11.
  13. National Toxicology Program (10 June 2011). "12th Report on Carcinogens". National Toxicology Program. Retrieved 2011-06-11.
  14. National Toxicology Program (10 June 2011). "Report On Carcinogens – Twelfth Edition – 2011" (PDF). National Toxicology Program. Retrieved 2011-06-11.
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ഫോർമാൾഡിഹൈഡ്
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