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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 ...
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 ...
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.
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: [7] PH 3 + 3 CH 2 =CHZ → P(CH 2 CH 2 Z) 3 (Z = NO 2, CN, C(O)NH 2)
Phosphines or phosphanes are phosphorus compounds derived from phosphine and have the general structure R 3 P. For the nitrogen analogues, please see Category:Inorganic amines . Wikimedia Commons has media related to Phosphines .
The rebranding project changed the use of orange color for advertising to a soft grey and blue, and added a house symbol for the "o" in At Home. [8] The rebranding cost around $20 million. [8] At Home publicly filed an S-1 on September 4, 2015, to go public. [9] In July 2021, At Home was acquired by Hellman & Friedman. [10]
Diphosgene is an organic chemical compound with the formula ClCO 2 CCl 3. This colorless liquid is a valuable reagent in the synthesis of organic compounds. Diphosgene is related to phosgene and has comparable toxicity, but is more conveniently handled because it is a liquid, whereas phosgene is a gas.
Phosphorine is an air-sensitive oil [2] but is otherwise stable when handled using air-free techniques (however, substituted derivatives can often be handled under air without risk of decomposition). [ 3 ] [ 4 ] In contrast, silabenzene , a related heavy-element analogue of benzene, is not only air- and moisture-sensitive but also thermally ...