Dimethylmercury

Title: Dimethylmercury
CAS Registry Number: 593-74-8
CAS Name: Mercury, dimethyl
Additional Names: methyl mercury
Molecular Formula: C2H6Hg
Molecular Weight: 230.66
Percent Composition: C 10.41%, H 2.62%, Hg 86.96%
Line Formula: (CH3)2Hg
Literature References: Environmental contaminant found together with monomethyl mercury compounds in fish and birds. Prepns: Buckton, Ann. 108, 103 (1858); 109, 219 (1859); Jones, Werner, J. Am. Chem. Soc. 40, 1257 (1918); Gilman, Brown, ibid. 52, 3314 (1930); Wade, US 3636020 (1972 to Ventron); H. H. Sisler et al., J. Org. Chem. 45, 1329 (1980). Synthesized in bottom sediments: Jensen, Jernelöv, Nature 223, 753 (1969). Physical properties: Wilde, J. Chem. Soc. 1949, 72. Formation and degradation studies: Bertilsson, Neujahr, Biochemistry 10, 2805 (1971); DeSimone et al., Biochim. Biophys. Acta 304, 851 (1973); Spangler et al., Science 180, 192 (1973); eidem, Appl. Microbiol. 25, 488 (1973). Neurotoxicity studies: Dales, Am. J. Med. 53, 219 (1972); Skerfving, Food Cosmet. Toxicol. 10, 545 (1972); Kojima, Fujita, Toxicology 1, 43 (1973).
Properties: Colorless, volatile, toxic liquid; easily inflammable. bp740 92°. d20 3.1874. nD20 1.5452. Easily sol in ether, alc. Insol in H2O.
Boiling point: bp740 92°
Index of refraction: nD20 1.5452
Density: d20 3.1874
Use: As inorganic reagent.
Dimethylolpropionic Acid Dimethyl-p-phenylenediamine Dimethylthiambutene Dimethylzinc Dimetilan

Dimethylmercury
Skeletal formula of dimethylmercury with all explicit hydrogen added
Dimethyl-mercury-3D-vdW.png
Identifiers
CAS number 593-74-8 N
PubChem 11645
ChemSpider 11155 YesY
UNII C60TQU15XY YesY
EC number 209-805-3
UN number 3383
MeSH dimethyl+mercury
ChEBI CHEBI:30786 YesY
RTECS number OW3010000
Beilstein Reference 3600205
Gmelin Reference 25889
Jmol-3D images Image 1
Properties
Molecular formula HgC
2
H
6
Molar mass 230.66 g mol−1
Appearance Colorless liquid
Density 2.961 g mL−1
Melting point −43 °C; −45 °F; 230 K
Boiling point 93 to 94 °C; 199 to 201 °F; 366 to 367 K
Refractive index (nD) 1.543
Thermochemistry
Std enthalpy of
formation ΔfHo298
57.9–65.7 kJ mol−1
Hazards
GHS pictograms The skull-and-crossbones pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)The health hazard pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)The environment pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)
GHS signal word DANGER
GHS hazard statements H300, H310, H330, H373, H410
GHS precautionary statements P260, P264, P273, P280, P284, P301+310
EU Index 080-007-00-3
EU classification Very Toxic T+ Dangerous for the Environment (Nature) N
R-phrases R26/27/28, R33, R50/53
S-phrases (S1/2), S13, S28, S36, S45
NFPA 704
NFPA 704.svg
4
4
1
Flash point 5 °C; 41 °F; 278 K
 N (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Dimethylmercury ((CH3)2Hg) is an organomercury compound. This colorless liquid is one of the strongest known neurotoxins. It is described as having a slightly sweet smell, although inhaling enough vapor to detect its odor would be hazardous.[citation needed]