3.flame reaction Na yellow黄 K purple紫 Ca orange red砖红 Li Na K Sr deep red洋红 Ba olivine黄绿 Li deep red深红 excitated Ca Sr Ba 3.flame reaction Na yellow 黄 K purple 紫 Ca orange red砖红 Sr deep red洋红 Ba olivine黄绿 Li deep red 深红 excitated h υ