... 7PA (Propargyl alcohol) nickel electroplating nickel plating intermediateBrightener and long leveling agent PAChemical namePropargyl alcoholEmpirical formulaC3H4OMolecular weight56.1CAS ... BBI..Impurity ToleranceATPN , SSO3, PN, PZN, FEZX ..Brighter and leveling agent at low area lightPOPDH, PS, POPS,..Low ... Sulfate, Chromiun Nitrate.... PA (Propargyl alcohol) chemical raw material cas no. 107- 19-7