Clordiapenser,Molteni Farmaceutici SpA.
20 kg p-aminosulfonyl benzoic acid was mixed with 400 L 0.5 N NaOCl. After
an acidification with 100 L 1 N acetic acid, a precipitate dropped out. It was
filtered off, washed and dried. The obtained 4-((dichloroamino)sulfonyl)
benzoic acid had MP: 203°C.
p-Dichlorosulfamoylbenzoic acid is a white, crystalline,photosensitive compound with a faint chlorine odor.Halazone is only slightly soluble in water at pH 7 but becomesvery soluble in alkaline solutions. The sodium salt ofhalazone is used to disinfect drinking water.
Fine white powder with an odor of chlorine.
Flash point data for Halazone are not available, but Halazone is probably combustible.
