... g., metals such as zinc, lead, and the like, in primary battery cells, comprises a quaternary ammonium salt, particularly, ... chloride.More preferably Tetraheptyl ammonium chloride.Used in hybridization solutions of mixed oligonucleotides. In solutions with TMAC, the Tm(melting temperature ... on its length, not its base composition. TMAC,Used in probing PCR (polymerase chain reaction) products for the ...