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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 ...
Treatment of dppe with hydrogen peroxide produces the phosphine oxides (C 6 H 5) 2 P(O)CH 2 CH 2 P(C 6 H 5) 2 and (C 6 H 5) 2 P(O)CH 2 CH 2 P(O)(C 6 H 5) 2. [4] Selective mono-oxidation of dppe can be achieved by benzylation followed by hydrolysis: (C 6 H 5) 2 PCH 2 CH 2 P(C 6 H 5) 2 + C 6 H 5 CH 2 Br → (C 6 H 5) 2 PCH 2 CH 2 P(C 6 H 5) 2 (CH ...
Established in 2002, the Canadian International Pharmacy Association ("CIPA") is a Canadian association of licensed pharmacy businesses offering mail order pharmacy services to Canadian and international patients. CIPA members sell pharmaceuticals and maintenance medications to individuals upon receipt of a valid prescription.
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 .
Phosgene is the most dangerous commonly used pulmonary agent (although disulfur decafluoride and perfluoroisobutene are both even more dangerous, with respectively 4 and 10 times the lethality of phosgene, neither is widely used). It is a colorless gas under ordinary conditions.
Phosphine oxide is the inorganic compound with the formula H 3 PO. Although stable as a dilute gas, liquid or solid samples are unstable. Unlike many other compounds of the type PO x H y, H 3 PO is rarely discussed and is not even mentioned in major sources on main group chemistry.
Organophosphines are organophosphorus compounds with the formula PR n H 3−n, where R is an organic substituent.These compounds can be classified according to the value of n: primary phosphines (n = 1), secondary phosphines (n = 2), tertiary phosphines (n = 3).