Some chemicals to get Lee started:
https://earthworks.org/issues/hydraulic_fracturing_101/ 2,2′,2″-Nitrilotriethanol
2-Ethylhexanol
5-Chloro-2-methyl-4-isothiazolin-3-one
Acetic acid
Acrolein
Acrylamide (2-propenamide)
Acrylic acid
Ammhttp://www.ozpolitic.com/yabbfiles/Templates/Forum/default/underline.gifonia
Ammonium chloride
Ammonium nitrate
Aniline
Benzyl chloride
Boric acid
Cadmium
Calcium hypochlorite
Chlorine
Chlorine dioxide
Dibromoacetonitrile 1
Diesel 2
Diethanolamine
Diethylenetriamine
Dimethyl formamide
Epidian
Ethanol (acetylenic alcohol)
Ethyl mercaptan
Ethylbenzene Ethylene glycol
Ethylene glycol monobutyl ether (2-BE)
Ethylene oxide
Ferrous sulfate
Formaldehyde
Formic acid
Fuel oil #2
Glutaraldehyde
Glyoxal
Hydrodesulfurized kerosene
Hydrogen sulfide
Iron
Isobutyl alcohol (2-methyl-1-propanol)
Isopropanol (propan-2-ol)
Kerosene
Light naphthenic distillates, hydrotreated
Mercaptoacidic acid
Methanol
Methylene bis(thiocyanate)
Monoethanolamine
NaHCO3 Naphtha, petroleum medium aliphatic
Naphthalene
Natural gas condensates
Nickel sulfate
Paraformaldehyde
Petroleum distillate naptha
Petroleum distillate/ naphtha
Phosphonium, tetrakis(hydroxymethyl)-sulfate
Propane-1,2-diol
Sodium bromate
Sodium chlorite (chlorous acid, sodium salt)
Sodium hypochlorite
Sodium nitrate
Sodium nitrite
Sodium sulfite
Styrene
Sulfur dioxide
Sulfuric acid
Tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione (Dazomet)
Titanium dioxide
Tributyl phosphate
Triethylene glycol
Urea
Xylene
Some more:
https://cen.acs.org/articles/94/web/2016/05/Toxic-chemicals-fracking-wastewater-...North Dakota fracking boom leaves residues of
radium, selenium, lead, and other contaminants in the environment