... top brightener and lasting leveling agent in nickel baths TC-DEP N N-Diethyl-2-propyne ammonium sulfate, DEP50 ... TECHNICAL DATA SHEET TC-DEP Chemical nature Chemical name N,N-Diethyl-2 ... .10-1.14Solubility Well soluble in water. Application TC-DEP is used as a top brightener and stronger ... /drum, stored in cool and dry place TC-DEP N N-Diethyl-2-propyne ammonium sulfate