Commodity200520062007
Disodium sulphate$179$2,232$25,800
Sodium sulphates other than disodium sulphate$8,637$16,470$454
Sulphates of magnesium$6,580$1,461$1,538
Sulphates of aluminium$255$15,331$14,383
Sulphates of chromium$103,203$197,616 
Sulphates of nickel$153  
Sulphates of copper$717,605$587,379$2,231,406
Sulphates of zinc$152$5,500 
Sulphates of barium  $59,903
Sulphates (excl. of 2833.21-2833.27)$289,340$291,074$527,794
Alums$80$62 
Peroxosulphates (persulphates)  $9,448
Total$1,126,184$1,117,125$2,870,726