Ammonium Alum [English name] Ammonium Alum [Molecular formula] NH4Al(SO4)2•12H2O [Technical standard] the product quality conforms to the national HG2917-1999 standard [Appearance]a white crystalline double sulfate of aluminium [Application] used in water purification, in vegetable glues, in porcelain cements, in natural deodorant Deodorant. Deodorants are substances applied to the body mainly to reduce body odor which is caused by the bacterial breakdown of perspiration. A subgroup of deodorants are "antiperspirants", which prevent odor and reduce sweat produced by parts of the body.... s and in tanning, dyeing and in fireproofing textiles. The pH of the solution resulting from the topical application of ammonium alum with perspiration is typically in the slightly acid range, from 4 to 5. Item unit Criteria Analysis results Aluminum ammonium sulfate % 99.2min 99.3 Heavy metal(As Pb) % 0.002max 0.0017 As % 0.0002max 0.00014 Water-insoluble substance % 0.2max 0.15 water % 4.0max 1.80 [Storage & transportation] Stored in dry, cool airiness place, far away from heat, avoid insolation, sign with no moisture and no insolation [Packing] plastic woven bag with PE liner.n.w.25/50kg.