... yellow liquid PA (Propargyl alcohol) cas no. 107 19-7PA (Propargyl alcohol) nickel electroplating nickel plating intermediateBrightener and ... agent PAChemical namePropargyl alcoholEmpirical formulaC3H4OMolecular weight56.1CAS No.107 19-7Characteristic:AppearanceColorless to yellow liquidAssay(%)>98.0(GC) ... CB-4, CB-5,CB-6...Acid Copper PlatingSPS, PZ-1,PZ-2, PZ-3, PAC, BY-1, PAE-9, Polyether-8 ...