The correct purchasing calculation should contain five variables: 1. product price; 2. dosage; 3. liquor ratio; 4. process efficiency; 5. wastewater/operating cost.
A useful customer worksheet compares hydrosulfite and Thiourea Dioxide item by item: price/kg, dosage g/L, liquor ratio, kg/t fabric, chemical cost/t, annual production and annual chemical cost.
This is the calculation we recommend sending to every serious buyer.