Searching chemicals by CAS Registry Number can help eliminate the confusion of searching by name. Because many chemicals have multiple names, you can narrow your search more quickly using the CAS number method – the search result will include every name associated with a particular chemical.
You can find the CAS number for a chemical through a variety of resources:
FracFocus includes the CAS numbers in our Find a Well form.An alphabetical list, organized by the chemical’s function, is included below.Several websites include a CAS number database:(Please note that when you click these links, you will leave the FracFocus website. The listed websites are not controlled by or affiliated with FracFocus.)
CAS Registry Numbers
ACIDS
- Hydrochloric Acid: 007647-01-0
BIOCIDES
- Quaternary Ammonium Chloride: 012125-02-9, 061789-71-1
- Tetrakis Hydroxymethyl-Phosphonium Sulfate: 055566-30-8
BREAKERS
- Ammonium Persulfate: 007727-54-0
- Calcium Chloride: 010043-52-4
- Magnesium Oxide: 001309-48-4
- Magnesium Peroxide: 014452-57-4
- Sodium Chloride: 007647-14-5
CLAY STABILIZERS
- Choline Chloride: 000067-48-1
- Sodium Chloride: 007647-14-5
- Tetramethyl Ammonium Chloride: 000075-57-0
CORROSION INHIBITORS
- Acetaldehyde: 000075-07-0
- Formic Acid: 000064-18-6
- Isopropanol: 000067-63-0
- Methanol: 000067-56-1
CROSSLINKERS
- Borate Salts: N/A
- Boric Acid: 001333-73-9
- Ethylene Glycol: 000107-21-1
- Hydrotreated Light Petroleum Distillate: 064742-47-8
- Methanol: 000067-56-1
- Petroleum Distillate: 064741-85-1
- Potassium Metaborate: 013709-94-9, List9=
- Sodium Tetraborate: 001303-96-4
- Zirconium Complex: 113184-20-6
FRICTION REDUCERS
- Ethylene Glycol: 000107-21-1
- Hydrotreated Light Petroleum Distillate: 064742-47-8
- Methanol: 000067-56-1
- Petroleum Distillate: 064741-85-1
- Polyacrylamide: 009003-05-8
GELLING AGENTS
- Ethylene Glycol: 000107-21-1
- Guar Gum: 009000-30-0
- Hydrotreated Light Petroleum Distillate: 064742-47-8
- Methanol: 000067-56-1
- Petroleum Distillate: 064741-85-1
- Polysaccharide Blend: 068130-15-4
IRON CONTROLLERS
- Acetic Acid: 000064-19-7
- Citric Acid: 000077-92-9
- Sodium Erythorbate: 006381-77-7
- Thioglycolic Acid: 000068-11-1
NON-EMULSIFIERS
- Ethylene Glycol: 000107-21-1
- Isopropanol: 000067-63-0
- Lauryl Sulfate: 000151-21-3
PH-ADJUSTING AGENTS
- Acetic Acid: 000064-19-7
- Potassium Carbonate: 000584-08-7
- Potassium Hydroxide: 001310-58-3
- Sodium Carbonate: 000497-19-8
- Sodium Hydroxide: 001310-73-2
SCALE INHIBITORS
- Acrylate: 025987-30-8
- Copolymer of Acrylamide and Sodium
- Phosphonic Acid Salt: N/A
- Sodium Polycarboxylate: N/A
SURFACTANTS
- 2-Butoxyethanol: 000111-76-2
- Ethanol: 000064-17-5
- Isopropanol: 000067-63-0
- Lauryl Sulfate: 000151-21-3
- Methanol: 000067-56-1
- Naphthalene: 000091-20-3
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