Biocide Limits or Glutaraldehyde 111-30-8 The natural prevents polymer gelling 2,2-Dibromo-2-cyanoacetamide 10222-01-2 growth of agents are (DBNPA) 55566-30-8 bacteria that good food for could damage bacteria so they sulfate (THPS, Magnacide 52-51-7 the gelling encourage 575) agent 7681-52-9 bacterial growth bronopol - biocides kill 7681-52-9 these bacteria 7772-98-7 Sodium hypochlorite 10043-35-3 Sodium thiosulfate Boric acid Caustic soda pH buffer Keeps the pH Acetic acid 64-19-7 Required for of the fluid in a the stability of Sodium hydroxide 1310-73-2 specified crosslinked Potassium carbonate 584-08-7 range polymers Sodium carbonate, 497-19-8 Breaker Chemically Hydrogen peroxides 7722-84-1 Only required if break the a gel is used Sodium persulfate 7775-27-1 bonds of the Diammonium peroxidisulphate 7727-54-0 gel in order to reduce the viscosity back to that of water Corrosion Aloe None or scale proprietary n,n-dimenthyl formamide inhibitors 68-12-2 Methanol 67-56-1 Nonyl phenol 68152-92-1 Friction Reduce Oxyalkylated alcohol None or reducers surface proprietary tension Other Includes Terpenes and terpenoids 65996-96-5 Operators in additives foamers, gel NSW and Sweet orange oil 68647-72-3 stabilisers, Queensland are Polyacrylamide clay required to Alcohols None or stabilisers, disclose a full proprietary preservatives, list of additives n,n-dimenthyl formanide surfactants prior to 68-12-2 Citric acid hydraulic 77-92-9 Ammonium bisulfite fracturing 7803-63-6 Ethylene glycol 107-21-1 Potassium chloride 7447-40-7
Biocide Limits or prevents growth of bacteria that could damage the gelling agent Glutaraldehyde 2,2-Dibromo-2-cyanoacetamide (DBNPA) sulfate (THPS, Magnacide 575) bronopol Sodium hypochlorite Sodium thiosulfate Boric acid Caustic soda 111-30-8 10222-01-2 55566-30-8 52-51-7 7681-52-9 7681-52-9 7772-98-7 10043-35-3 The natural polymer gelling agents are good food for bacteria so they encourage bacterial growth - biocides kill these bacteria pH buffer Keeps the pH of the fluid in a specified range Acetic acid Sodium hydroxide Potassium carbonate Sodium carbonate, 64-19-7 1310-73-2 584-08-7 497-19-8 Required for the stability of crosslinked polymers Breaker Chemically break the bonds of the gel in order to reduce the viscosity back to that of water Hydrogen peroxides Sodium persulfate Diammonium peroxidisulphate 7722-84-1 7775-27-1 7727-54-0 Only required if a gel is used Corrosion scale inhibitors Aloe n,n-dimenthyl formamide Methanol Nonyl phenol None or proprietary 68-12-2 67-56-1 68152-92-1 Friction reducers Reduce surface tension Oxyalkylated alcohol None or proprietary Other additives Includes foamers, gel stabilisers, clay stabilisers, preservatives, surfactants Terpenes and terpenoids Sweet orange oil Polyacrylamide Alcohols n,n-dimenthyl formanide Citric acid Ammonium bisulfite Ethylene glycol Potassium chloride 65996-96-5 68647-72-3 None or proprietary 68-12-2 77-92-9 7803-63-6 107-21-1 7447-40-7 Operators in NSW and Queensland are required to disclose a full list of additives prior to hydraulic fracturing