鏻 Stroke Order

鏻 [lín] 1. A general term for a class of phosphorous organic compounds with the general formula R4PX (where R is a hydrocarbon group and X is a hydroxyl group, etc.). 2. A univalent ion PH4+ or group PH4, resembling ammonium, derived from phosphine, particularly known in the form of salts (e.g., phosphonium iodide PH4I) and organic derivatives (e.g., tetraphenylphosphonium iodide (C6H5)4PI).