Tetrachloroethylene, also known under the systematic name tetrachloroethene, or perchloroethylene ("perc" or "PERC"), and many other names, is a chlorocarbon with the formula Cl2C=CCl2.
T 1358 (OTTO) Tetrachloro ethylene, for spectroscopy, 99.9% Cas 127-18-4 - used as a film-forming electrolyte additive in the manufacture of lithium ion batteries. T 1358 (OTTO) Tetrachloro ethylene, for spectroscopy, 99.9% Cas 127-18-4 - used as an extractant for the estimation of oil and grease in water by Fourier transform infrared spectroscopy (FT-IR).