... :Industrial Grade 3.CAS No.:75-20 Calcium Carbide Lump Size: 80-120mm, 50-80mm, 25-50mm, 7-30mm ,4- ... 5mt with pallet in 1*20FCLApplicantion:This product is lumpy substance, its surface is a little deep gray, has slight nasty smell ... 8. H2S(V/V)≤0.1%9.Molecular weight64.10(according to 1995 international relative atomic mass)10. SIZE4-7,7-15 ... ,15-25,25-50,50-80,80-120MM11. Packing50kg or 100kg iron drum