but yl ▁ch lor ide ▁and ▁al umin ium ▁ch lor ide ▁followed ▁by ▁nit r ation ▁with ▁f uming ▁nit ric ▁acid ▁or ▁with ▁a ▁ 7 0 : 3 0 ▁mixture ▁of ▁nit ric ▁acid ▁and ▁sul fur ic ▁acid . ▁The ▁cru de ▁product ▁is ▁rec ry st all ized ▁from ▁ 9 5 % ▁eth an ol . ▁ ▁Mus k ▁x yl ene ▁has ▁been ▁used ▁in ▁a ▁wide ▁variety ▁of ▁consumer ▁products ▁since ▁the ▁early ▁ 1 9 0 0 s , ▁usually ▁in ▁very ▁small ▁quantities . ▁World ▁production ▁of ▁nit ro ▁mus ks ▁in ▁ 1 9 8 7 ▁was ▁about ▁ 2 5 0 0   ton nes , ▁but ▁had ▁fallen ▁to ▁about ▁ 1 0 0 0   ton nes ▁by ▁the ▁early ▁ 1 9 9 0 s : ▁mus k ▁x yl ene ▁made ▁up ▁roughly ▁two - third s ▁of ▁the ▁production ▁of ▁nit ro ▁mus ks ▁during ▁this ▁period . ▁Production ▁was ▁concentr ated ▁in ▁Western ▁Europe , ▁with ▁the ▁United ▁Kingdom ▁alone ▁account ing ▁for ▁ 2 8 % ▁of ▁world ▁production ▁of ▁nit ro ▁mus ks . ▁ ▁Use ▁of ▁mus k ▁x yl ene ▁continued ▁to ▁decl ine ▁through ▁the ▁ 1 9 9 0 s , ▁as ▁fra gr ance ▁manufact ur ers ▁volunt arily ▁switched ▁to ▁alternative ▁fra gr ance ▁comp ounds . ▁For ▁example , ▁mus k ▁x yl ene ▁has ▁not ▁been ▁used ▁in ▁Japanese ▁products ▁( on ▁a ▁volunt ary