Chemical Property of Dimethylmercury
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Chemical Property:
- Appearance/Colour:Colorless liquid
- Melting Point:?43 °C(lit.)
- Refractive Index:n20/D 1.543(lit.)
- Boiling Point:93-94 °C(lit.)
- Flash Point:42 °c
- PSA：0.00000
- Density:2.961 g/mL at 25 °C(lit.)
- LogP:1.16510
- Storage Temp.:Flammables area
- Water Solubility.:9000 mg l-1 (e)
- Hydrogen Bond Donor Count:0
- Hydrogen Bond Acceptor Count:0
- Rotatable Bond Count:0
- Exact Mass:232.017594
- Heavy Atom Count:3
- Complexity:2.8
- Purity/Quality:
-
99% *data from raw suppliers
Dimethylmercury
95% *data from reagent suppliers
Safty Information:
- Pictogram(s):
T+
N
- Hazard Codes:T+,N
- Statements:
26/27/28-33-50/53
- Safety Statements:
13-28-36-45-60-61
- MSDS Files:
-
SDS file from LookChem
Total 1 MSDS from other Authors
Useful:
- Chemical Classes:Metals -> Metals, Organic Compounds
- Canonical SMILES:C[Hg]C
- Inhalation Risk:A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20 °C.
- Effects of Short Term Exposure:The substance is mildly irritating to the eyes, skin and respiratory tract. The substance may cause effects on the nervous system. This may result in impaired functions. Exposure could cause death. The effects may be delayed. Medical observation is indicated.
- Effects of Long Term Exposure:The substance may have effects on the nervous system. This may result in impaired functions. This substance is possibly carcinogenic to humans. Causes toxicity to human reproduction or development.
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Description
The first indication of the extreme toxicity of dimethylmercury
(DMM) was documented in 1863 when two laboratory assistants
died of DMM poisoning while synthesizing DMM in the
laboratory of Frankland and Duppa. There are numerous reports
of people dying from alkyl mercury compounds including
a chemist who was preparing several thousand grams ofDMMin
his laboratory in 1974. The extreme toxicity was revisited in
1997, when Karen Wetterhahn, an internationally renowned
researcher of the carcinogenic effects of heavy metals on DNA
repair proteins, died within a few months after a single exposure
of less than a milliliter of DMM on her latex-covered hand.
DMM is extremely toxic and lethal at a dose of approximately
400 mg of mercury (equivalent to a few drops) or about
5mgkg-1 of body weight or as little as 0.1 ml
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Uses
As inorganic reagent. Dimethylmercury is used as a reagent ininorganic synthesis, and as a reference standardfor mercury nuclear magnetic resonance(Hg NMR). It is an environmental pollutantfound in bottom sediments and also inthe bodies of birds and marine mammalssuch as whales and fishes. It occurs in fishesand birds along with monomethylmercury. Inhumans, its presence is attributed to the consumptionof pilot whale meat, cod fish, andother sea food. DMM has limited use because of its toxicity but can be used to
calibrate research equipment, as in its application as a standard
reference material for 199Hg NMR measurements.
