KnowraNitrogen trichlorideLinked fromLinked fromThe 2 pages that link to Nitrogen trichloride, each with the reason it gives.All 2Broader topic 1Compared with 1ChloramineBroader topic: It can form at high chlorine-to-ammonia ratios and contributes to irritating pool odors.Nitrogen triiodideCompared with: It is a related nitrogen trihalide, but chlorine replaces iodine.