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Showing papers on "Organomercury Compounds published in 1972"


Journal ArticleDOI
01 Jan 1972

402 citations


Journal ArticleDOI
01 Jan 1972-Analyst
TL;DR: The procedure developed resulted in the extraction of more mercury from sediments and soils than did extraction with concentrated nitric acid, and drying at 60 °C caused a significant loss of organomercury compounds from a lake sediment.
Abstract: A highly sensitive and precise procedure has been developed for the quantitative determination of total mercury in sediments and soils. Undried samples are treated with concentrated nitric and sulphuric acids, potassium permanganate and potassium persulphate in order to digest and oxidise all forms of mercury to mercury (II) ions, which are subsequently determined by flameless atomic-absorption spectrophotometry. Recovery of mercury, added as mercury(II) chloride, methylmercury chloride, phenylmercury hydroxide or phenylmercury acetate to a lake sediment, ranged from 98 to 105 per cent. The procedure developed by us resulted in the extraction of more mercury from sediments and soils than did extraction with concentrated nitric acid. Drying at 60 °C caused a significant loss of organomercury compounds from a lake sediment.

50 citations


Journal ArticleDOI
TL;DR: In this paper, the results obtained by the heteronuclear double magnetic resonance technique for 199 Hg chemical shifts, using a spectrometer locked on the proton signal of benzene or dichloromethane, are reported for a number of organomercury compounds.

24 citations


Journal ArticleDOI
TL;DR: By means of a galvanostatic method, it has been shown that diethylmercury reacts with mercury metal to form organomercury radicals as discussed by the authors, a conclusion based on the similarity between the charging curves obtained for solutions of DiethylMERcury and Bromide.

18 citations


Journal ArticleDOI
TL;DR: In this paper, the bispolychlorophenylmercurials R2Hg (R = C6Cl5 2,3,4,5-Cl4H, 2,5Cl2C6H2, and 2,7Cl2Cl2c6H3) have been prepared by direct mercuration of pentachlorobenzene, 1,2,3-4-tetrachloromethane and 1,4-dichlorobensene with mercuric trifluoroacetate at elevated temperatures.
Abstract: The bispolychlorophenylmercurials R2Hg (R = C6Cl5 2,3,4,5-Cl4H, 2,3,4,6- Cl4C6H 2,3,5,6-C14C6H, 2,3,4-Cl3C6H2, 2,4,6-Cl2C6H2, and 2,5-Cl2C6H3) have been prepared by direct mercuration of pentachlorobenzene, 1,2,3,4-tetrachlorobenzene, 1,2,3,5-tetrachlorobenzene, 1,2,4,5-tetraohlorobenzene, 1,2,3-trichlorobenzene, 1,3,5-trichlorobenzene, and 1,4-dichlorobenzene respectively, with mercuric trifluoroacetate at elevated temperatures. Similar syntheses of bispentachlorophenylmercury from mercuric difluoroacetate and fluoroacetate have also been carried out. From merouration of pentaohlorobenzene with mercuric trifluoroaoetate and difluoroacetate under milder conditions, pentachlorophenylmercuric trifluoroacetate and difluoroacetate have been obtained. The former undergoes thermal decomposition into bispenta chlorophenylmercury and mercuric trifluoroacetate.

12 citations





Journal ArticleDOI
TL;DR: It has been shown that organomercury compounds containing strongly electro-negative groups in the β-position and which are not capable of inter-and intramolecular interaction with the mercury atom, undergo symmetrization and substitution reactions rather than β-elimination in the presence of nucleophiles as discussed by the authors.

3 citations


Journal ArticleDOI
TL;DR: In this article, exchange reactions of bis (triethylgermyl)mercury with fluorine-containing mercury compounds gave derivatives of the series (C2H5)3GeHgX [when X=CF3 and CF(CF3)2] or decomposition products of the latter.
Abstract: 1. Exchange reactions of bis (triethylgermyl)mercury with fluorine-containing mercury compounds of the HgX2 or ClHgX type give derivatives of the series (C2H5)3GeHgX [when X=CF3 and CF(CF3)2] or decomposition products of the latter- mercury and (C2H5)3GeX (X=F, C(CF3)3, CHFCO2C2H5, CF2CO2C2H5, CFClCO2C2H5, and (CF3)CO2C2H5). 2. The compounds (C2H5)3GeCF(CF3)2, (C2H5)3GeC(CF3)3, but not (C2H5)3GeCF(CF3)CO2C2H5 readily undergoβ-decomposition, forming triethylfluorogermane.

2 citations


Journal ArticleDOI
TL;DR: In this paper, a study was made of the reaction of sulfur trioxide and dloxane sulfotrioxide with aromatic and aliphatic organomercury compounds, which leads to the formation of the mercury salts of sulfonic acids.
Abstract: A study was made of the reaction of sulfur trioxide and dloxane sulfotrioxide with aromatic and aliphatic organomercury compounds, which leads to the formation of the mercury salts of sulfonic acids.