To evaluate timber fumigants alternative to the ozone-depleting methyl bromide (MB), pinewood (Oregon, Pseudotsuga menziesii) blocks (10 cm × 10 cm × 30 cm) were fumigated in a stainless steel chamber (30.0 L). The timber blocks were fumigated at 48 mg L−1 of MB, sulfuryl fluoride (SF) and eth...
We describe the use of a microwave reaction for the conversion of various bromides to sodium sulfonates that have been further elaborated to sulfonyl chlorides. This new approach leads to much improved yields and shorter reaction times. Representative sulfonyl chlorides serve as precursors for t...
Sulfuryl fluoride (SF) is a fumigant used for the control of stored-product pest insects and is a feasible alternative to some uses of methyl bromide. SF was first registered in Germany in 2004 for disinfestation of emptied flourmills, emptied food storages and dried fruit. One- to 4-day-old egg...
The gas phase ion chemistry of sulfuryl fluoride is studied by ion trap mass spectrometry and ab initio calculations. Reactions of ions of atmospheric relevance with neutral SO2F2 mainly result in SO2F2 depletion by dissociative electron transfer. In few cases, a different reaction mechanism inv...
A randomized complete block design with three replications was utilized to evaluate the effects (P 0.05) in the presence and concentration of aroma active compounds, but oxidation compounds were slightly more prevalent (P 0.75) between hams that were fumigated with SF at 0 and 36 mg/ml. This s...
Publisher SummaryThis chapter provides the basic synthesis paths routes for the manufacture of sulfuryl fluoride, with a listing of the main raw materials and intermediates used in the synthesis of sulfuryl fluoride. Sulfuryl fluoride is commercially known as Vibane and it belongs to the sulfone...
Publisher SummaryThis chapter discusses the hazard identification, toxicity, and metabolism of sulfuryl fluoride. It is an odorless, colorless gas with a melting point of –135.82 °C and a boiling point of –55.38 °C. The vapor pressure is 1.3 × 104 torr at 25 °C. The solubility in water is ...
Low temperature Raman spectroscopy has led to a significant revision in the assignment of the vibrational fundamentals of sulfuryl chloride fluoride (SO2FCl). The fundamentals in cm−1 are: (a′) 1230, 826, 632, 503, 422, 295; (a″) 1469, 476, 303. All are from gas-phase i.r. spectra except 295 c...
The reaction of either ammonium fluoride or potassium fluoride with sulfuryl chloride in the presence of trifluoroacetic acid at ambient temperature gave sulfuryl chloride fluoride in good to moderate yields.
A method to produce high purity hydrogen using the corrosion of tin metal in lactic acid solutions is studied. The addition of sodium perchlorate has been also investigated for promoting the tin-lactic acid reaction. The data reveal that the rate of hydrogen production increases with increasing ...
The importance of toxic contaminants treatments have become increasingly apparent due to the severe threat from anthropogenic pollution in water pollutants. For the remediation of water contamination, novel material is always welcome based on the sensitivity and selectivity. The mesoporous compo...
The kinetics and mechanism of ascorbic acid (AH2) reduction of tellurium (IV) ion in acid perchlorate solutions at a constant ionic strength of 0.1 moldm−3 has been investigated, spectrophotometrically, in terms of the nature of electron-transfer and transition states in the rate-determining ste...
This study investigated the direct microbial reduction of perchlorate using domesticated activated sludge and showed the interaction effect of water quality factors on perchlorate bio-reduction. The dominant perchlorate-reducing bacteria belong to Dechloromonas sp., which was successfully acclim...
The imprints of fireworks displays on the adjacent water body were investigated from the perspective of cogeneration of black carbon, metals and perchlorate (ClO4−). In particular, the mixing and dissipation of ClO4− were studied at Oak Lake, Lincoln, Nebraska, following fireworks displays in 20...
As an emerging contaminant, perchlorate has been detected in groundwater, surface water, soil and food worldwide. Perchlorate has good solubility and chemical stability, thus its degradation in water is challenging. Chitosan-stabilized nano Zero-valent Iron (CS-nZVI) was synthesized and tested t...
Two polymorphs of [Cu(6C2HP)4(H2O)2](ClO4)2 and the analogous Cu(6C2HP)4(ClO4)2 complex have been prepared, 6C2HP = 6-chloro-2-hydroxypyridine. The three phases were characterized using single crystal X-ray diffraction, powder X-ray diffraction, TGA and DSC in the solid phase and UV-VIS spectros...
Reaction of the Schiff-base ligand, 3-(4-methylimidazol-5-yl)methylenehydrazonobutan-2-one oxime (H2L) with nickel(II) perchlorate hexahydrate in 1:1 molar proportion in methanol gives rise to a tetranuclear nickel(II) compound, Ni4L4 (1) in moderate yield. The compound has been characterized by...
Three new complexes [Co(N3Py2)(H2O)](ClO4)2 1, [Ni(N3Py2)(H2O)](ClO4)2 2 and [Cu(N3Py2)](ClO4)2 3 (N3Py2 is N,N′-dimethyl-N-(2-(methyl(pyridin-2-ylmethyl)amino)ethyl)-N′-(pyridin-2-ylmethyl)ethane-1,2-diamine) have been synthesized and characterized. Non-heme ligand N3Py2 have been prepared by...
The unexpected hydrolysis of organophosphonic acid ligands under hydrothermal reaction conditions yielded four bimetallic oxide materials incorporating Keggin type polyanions. The one-dimensional [Cu4O(Htpyprz)(tpyprz)2Cl4] [Mo12PO40] (1), [Cu6(4-pyrtet)2(4-Hpyrtet)4][MoVMoV11IPO40]·2.5H2O (2·...
The synthesis of a series of mono- and bis-haloarylimido molybdenum(VI) complexes is described. Two methods of introducing the electron poor imido functionality are employed, first the condensation of substituted anilines with Na2MoO4 in the presence of Me3SiCl/NEt3, secondly the sulfinyl amine ...
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