Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A univalent radical, PH4, derived from phosphine.
Century Dictionary and Cyclopedia
- n. A hypothetical compound, analogous to ammonium, formed by the union of four atoms of hydrogen and one of phosphorus (PH4). This, as well as the compounds in which from one to four of the hydrogen atoms are replaced by organic radicals, forms salts, as phosphonium iodide (PH4I). phenylphosphoniuni iodide (C6H5PH3I), tetrethylphosphonium chlorid ((C2H5)4PI), etc.
Wiktionary
- n. chemistry the tetravalent positively-charged phosphorus cation R4P+
GNU Webster's 1913
- n. (Chem.) The hypothetical radical PH4, analogous to ammonium, and regarded as the nucleus of certain derivatives of phosphine.
Etymologies
- phosph(o)- + (amm)onium. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“When cotton sleepwear has been treated with flame retardants, this typically is done with tetrakis hydroxymethyl phosphonium THP salts, which are said to be both effective and safe from a general health stand-point.”
“The phosphonium salts are of but little importance.”
“Thus we have phosphonium chloride (PH_ {4} Cl) analogous to ammonium chloride”
“If a small quantity of water is used, a larger deposit of yellow phosphorus is formed, together with a considerable quantity of phosphonium iodide.”
“In one of their recent studies, to be presented this coming week at the AIChE annual meeting, the team synthesized and prepared a quaternary-phosphonium functionalized hydroxide exchange membrane (TPQPOH152) with typical thickness of 50-100 µm.”
“Yan and his group switched from the QAOH to the quaternary-phosphonium-hydroxide (QPOH), opening up the potential to solve the low hydroxide-conductivity problem and thus improve the HEMFC performance drastically.”
“The researchers suggest that the high hydroxide-conductivity and high-performance of HEMFC indicate that the quaternary-phosphonium functionalized TPQPOH152”
Lists
These user-created lists contain the word ‘phosphonium’.
-
Not in the Periodic Table
Words that sound like they might be the names of elements of the periodic table, but that aren't. Many of the words listed here were actually proposed as names for substances their creators thought...
tentorium, columbarium, nasturtium, deuterium, caladium, valerian, concordium, synangium, chorium, geranium, hymenium, pyrenium and 310 more...
Tweets
Looking for tweets for phosphonium.
Comments
No comments yet...
Log in or sign up to get involved in the conversation. It's quick and easy.