Phosphorus Trichloride on Wikipedia English English Phosphorus Trichloride http://en.wikipedia.org/wiki/Phosphorus_trichloride English English phosphorus trichloride phosphorus trichloride http://en.wikipedia.org/wiki/Phosphorus_trichloride English English Phosphorus Trichloride on Wikipedia English http://en.wikipedia.org/wiki/Phosphorus_trichloride English English English PCl3 English English English English English English English