Calcium Carbide: Specification: Gas Yield: 295L/ KG; PH3 content in Acetylene: 0.06V/ Vmax; H2S content in Acetylene: 0.10V/ Vmax; Size: 2-8mm, 50-80mm or at customer’ s option; Packing: In 50kg, 100kg new iron drum or at customer’ s option