Caurbon monoxide

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Caurbon monoxide
Baw-an-stick model o carbon monoxide
Spacefill model o carbon monoxide
model o carbon monoxide
Names
Preferred IUPAC name
Carbon monoxide
Ither names
Carbon monooxide
Carbonous oxide
Carbon(II) oxide
Carbonyl
Flue gas
Monoxide
Identifiers
Jmol-3D images Image
Beilstein Reference 3587264
ChEBI CHEBI:17245 YesY
ChemSpider 275 YesY
ECHA InfoCard 100.010.118
EC Nummer 211-128-3
Gmelin Reference 421
KEGG D09706 YesY
MeSH Carbon+monoxide
RTECS nummer FG3500000
UNII 7U1EE4V452 YesY
UN nummer 1016
Properties
CO
Molar mass 28.010 g/mol
Appearance colourless gas
Odour odourless
Density 789 kg/m3, liquid
1.250 kg/m3 at 0 °C, 1 atm
1.145 kg/m3 at 25 °C, 1 atm
Meltin pynt −205.02 °C (−337.04 °F; 68.13 K)
Bylin pynt −191.5 °C (−312.7 °F; 81.6 K)
27.6 mg/L (25 °C)
Solubility soluble in chloroform, acetic acid, ethyl acetate, ethanol, ammonium hydroxide, benzene
kH 1.04 atm-m3/mol
Magnetic susceptibility -9.8·10−6 cm3/mol
Refractive index (nD) 1.0003364
Dipole moment 0.122 D
Thermochemistry
Speceefic heat capacity, C 29.1 J/K mol
Staundart molar
entropy
So298
197.7 J·mol−1·K−1
Std enthalpy o
formation
ΔfHo298
−110.5 kJ·mol−1
Std enthalpy o
combustion
ΔcHo298
−283.4 kJ/mol
Hazards
Safety data sheet ICSC 0023
EU clessification Flammable F Very Toxic T+
R-phrases R61 R12 R26 R48/23
S-phrases S53 S45
NFPA 704
Flammability code 4: Will rapidly or completely vaporize at normal atmospheric pressur an temperatur, or is readily dispersed in air an will burn readily. Flash pynt ablo 23 °C (73 °F). E.g., propane Health code 3: Short exposur could cause serious temporary or residual injury. E.g., chlorine gas Reactivity code 0: Normally stable, even unner fire exposur condeetions, an is nae reactive wi watter. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Flash pynt −191 °C (−311.8 °F; 82.1 K)
609 °C (1,128 °F; 882 K)
Explosive leemits 12.5–74.2%
Lethal dose or concentration (LD, LC):
8636 ppm (ratton, 15 min)
5207 ppm (ratton, 30 min)
1784 ppm (ratton, 4 hr)
2414 ppm (moose, 4 hr)
5647 ppm (guinea pig, 4 hr)[1]
4000 ppm (human, 30 min)
5000 ppm (human, 5 min)[1]
US health exposure limits (NIOSH):[3]
TWA 50 ppm (55 mg/m3)
TWA 35 ppm (40 mg/m3) C 200 ppm (229 mg/m3)
1200 ppm
Relatit compoonds
Relatit caurbon oxides
Caurbon dioxide
Caurbon suboxide
Oxocaurbons
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
YesY verify (whit is YesYN ?)
Infobox references

Caurbon monoxide (CO) is a colourless, odourless, an tasteless gas that is slichtly less dense nor air. It is toxic tae hemoglobic ainimals (baith invertebrate an vertebrate, including humans) when encoontered in concentrations abuin aboot 35 ppm, awtho it is an aa produced in normal ainimal metabolism in law quantities, an is thocht tae hae some normal biological functions. In the atmosphere, it is spatially variable an short lived, haein a role in the formation o grund-level ozone.

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