Calcium caribide 305L/KG gas yield 1.Used in the generation of acetylene gas ... as a reagent. 2.SGS,BV test Calcium caribide 305L/KG gas yieldPhysical appearance:Brown,grey,black,purple solidCAS NO:75 ... -20-7Molecular Formula:CaC2Molecular Weight:64.10Specification: IndexValueGas Yield kg> 280/285/290PH3 % ≤0.06 H2S %KG gas yield