| 摘要 |
<p>INVENTION: AZEOTROPE-LIKE COMPOSITIONS OF TRICHLOROTRIFLUOROETHANE, ACETONITRILE AND ACETONE INVENTOR: FRANCIS J. FIGIEL Azeotrope-like compositions consisting essentially of 1,1,2-trichloro-1,2,2-trifluoroethane, acetonitrile and acetone have utility as degreasirlg agents and as solvents to remove rosin fluxes from printed circuit boards.</p> |
