Commodity200620072008
Sodium hydroxide (caustic soda), solid$155$32$277
Sodium hydroxide (caustic soda), in aqueous solution (sida lye/liquid soda) ...$2,104 $35
Potassium hydroxide (caustic potash)$203  
Peroxides of sodium/potassium$236$157$367
Total$2,698$189$679