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I am interesting in barium sulphate for powder coatings

we're looking for a supplier ... is interested in buying: Manganic sulphate-- 20-30 tons, feed grade, purity 98%min content: Mn-- 32%min, Pb-- 0,002%max, Cd-- 0,002%max, As-- 0,0002%max in bags 25 kg. Potassium iodide-- 0,5t content: assay of KI 99%min--100,5%max, heavy metals-- 0,001max, iodates-- 4mg/kg, loss on drying-- 1%max in bags Sodium selenite-- 250-300kg Content: base material (Na2SeO3)-- 97,8%min (Se 44,7%, As 0,002%max, Cd 0,0001%max, Cu 0,0005%max,Pb 0,002%max, Hg 0,0001%max), los