Search results
Results from the WOW.Com Content Network
Phosphine is an attractive fumigant because it is lethal to insects and rodents, but degrades to phosphoric acid, which is non-toxic. As sources of phosphine, for farm use, pellets of aluminium phosphide (AlP), calcium phosphide (Ca 3 P 2), or zinc phosphide (Zn 3 P 2) are used. These phosphides release phosphine upon contact with atmospheric ...
Phosgene is an organic chemical compound with the formula COCl 2. It is a toxic, colorless gas; in low concentrations, its musty odor resembles that of freshly cut hay or grass. [ 7 ] It can be thought of chemically as the double acyl chloride analog of carbonic acid , or structurally as formaldehyde with the hydrogen atoms replaced by chlorine ...
LiiP(C 6 H 5) 2 + CH 3 I → CH 3 P(C 6 H 5) 2 + LiI. Phosphine is a precursor to some tertiary phosphines by hydrophosphination of alkenes. For example, in the presence of basic catalysts PH 3 adds of Michael acceptors such as acrylonitrile: [8] PH 3 + 3 CH 2 =CHZ → P(CH 2 CH 2 Z) 3 (Z = NO 2, CN, C(O)NH 2)
Tributylphosphine is the organophosphorus compound with the chemical formula P(CH 2 CH 2 CH 2 CH 3) 3, often abbreviated as PBu 3. It is a tertiary phosphine. It is an oily liquid at room temperature, with a nauseating odor. It reacts slowly with atmospheric oxygen, and rapidly with other oxidizing agents, to give tributylphosphine oxide.
With the formula (HO) 2 P(O)CH 2 NHCH 2 CO 2 H, this derivative of glycine is one of the most widely used herbicides. Bisphosphonates are a class of drugs to treat osteoporosis. The nerve gas agent sarin, containing both C–P and F–P bonds, is a phosphonate. Phosphinates feature two P–C bonds, with the general formula R 2 P(=O)(OR').
November 23, 2024 at 2:00 PM Nuts can be a healthy snack to keep hunger at bay in between meals to help with weight loss. Whether on their own or sprinkled over a meal, nuts can make for a healthy ...
A 2023 study found that people with overweight or obesity experienced fewer food cravings and had better control of eating when taking semaglutide at a 2.4-milligram dose. stefanamer/Istockphoto 3.
The toxicity of aluminium phosphide is attributed to the liberation of phosphine gas, a cytotoxic compound that causes free radical mediated injury, inhibits vital cellular enzymes and is directly corrosive to tissues. The following reaction releases phosphine when AlP reacts with water in the body: AlP + 3 H 2 O → Al(OH) 3 + PH 3, and