... quality ;Gas yield: 295L/kg min In 50/100kg drum; Size: 4-7mm,7-15mm,15-25mm.25-50mm,50-80mm, ... gray, has slight nasty smell. It can produce acetylene gas when met water, it can burn when meets fire. ... 2. Molecular formulaCaC23. UN14024. Class4.35. HS code284910006. Gas yield20 101.3 Kpa≥295L/KG7. PH3(V/V)≤0 ... mass)10. SIZE4-7,7-15,15-25,25-50,50-80,80-120MM11. Packing50kg or 100kg iron drum Cautions ...