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Phosphine (IUPAC name: phosphane) is a colorless, flammable, highly toxic compound with the chemical formula P H 3, classed as a pnictogen hydride. Pure phosphine is odorless, but technical grade samples have a highly unpleasant odor like rotting fish, due to the presence of substituted phosphine and diphosphane ( P 2 H 4 ).
Zinc phosphide (Zn 3 P 2) is an inorganic chemical compound.It is a grey solid, although commercial samples are often dark or even black. It is used as a rodenticide. [5] Zn 3 P 2 is a II-V semiconductor with a direct band gap of 1.5 eV [6] and may have applications in photovoltaic cells. [7]
Associations of a second-generation anticoagulant with an antibiotic and/or vitamin D are considered to be effective even against most resistant strains of rodents, though some second generation anticoagulants (namely brodifacoum and difethialone), in bait concentrations of 0.0025% to 0.005% are so toxic that resistance is unknown, and even ...
The gasses used in fumigation (most often phosphine [8]) are highly toxic to both insects and mammals (including humans) [8] but when applied properly, no fumigant will remain in product after treatment is complete. [2] Because of the high toxicity of fumigants, their use is restricted to qualified applicators [2] [7] and areas which can be ...
This is a diffusing subcategory of Category:Mammals of the United States. Articles about rodents in the parent category should be moved to this subcategory. Subcategories
Tributylphosphine reacts with oxygen to give the corresponding phosphine oxide (here tributylphosphine oxide): 2 P(CH 2 CH 2 CH 2 CH 3) 3 + O 2 → 2 O=P(CH 2 CH 2 CH 2 CH 3) 3. Because this reaction is so fast, the compound is usually handled under an inert atmosphere. The phosphine is also easily alkylated.
Compounds related to phosphine oxides include phosphine imides (R 3 PNR') and related chalcogenides (R 3 PE, where E = S, Se, Te). These compounds are some of the most thermally stable organophosphorus compounds. In general, they are less basic than the corresponding phosphine oxides, which can adduce to thiophosphoryl halides: [7]: 73
Bis(2-cyanoethylphenyl)phosphine, which is of interest as a synthetic intermediate, can be made from phenylphosphine by base-catalyzed allylic addition to acrylonitrile. C 6 H 5 PH 2 + 2CH 2 =CHCN → C 6 H 5 P(CH 2 CH 2 CN) 2. Bis(2-cyanoethylphenyl)phosphine is a useful precursor to 1-phenyl-4-phosphorinanone by base-induced cyclization ...