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  2. Phosphine - Wikipedia

    en.wikipedia.org/wiki/Phosphine

    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 ...

  3. Phosgene - Wikipedia

    en.wikipedia.org/wiki/Phosgene

    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 ...

  4. Tributylphosphine - Wikipedia

    en.wikipedia.org/wiki/Tributylphosphine

    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.

  5. Pulmonary agent - Wikipedia

    en.wikipedia.org/wiki/Pulmonary_agent

    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.

  6. Organophosphine - Wikipedia

    en.wikipedia.org/wiki/Organophosphine

    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).

  7. Phosphine oxides - Wikipedia

    en.wikipedia.org/wiki/Phosphine_oxides

    Instead of HSiCl 3, other perchloropolysilanes, e.g. hexachlorodisilane (Si 2 Cl 6), can also be used. In comparison, using the reaction of the corresponding phosphine oxides with perchloropolysilanes such as Si 2 Cl 6 or Si 3 Cl 8 in benzene or chloroform, phosphines can be prepared in higher yields. R 3 PO + Si 2 Cl 6 → R 3 P + Si 2 OCl 6

  8. The new college student sex trend and why it's so dangerous

    www.aol.com/college-student-sex-trend-why...

    The cozy slippers that are 'just like UGGs but at a great price' are down to $24. AOL. 25 hostess gifts from Walmart are way better than a bottle of wine. See all deals. In Other News.

  9. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    In the form of boric acid, price per boron contained. Min. 99% pure. 6: C: Carbon: 2.267: 200 (5.54 × 10 18 kg) 0.122: 0.28: 2018: EIA Coal [19] In the form of anthracite, price per carbon contained, assuming 90% carbon content. There is a wide variation of price of carbon depending on its form.