Inhibited glycols neutralize the acids formed and thus protect against corrosion. Applications: Ethylene Glycol Inhibited is almost odorless, easily mixes with water, and is moderately toxic. Ethylene Glycol Inhibited is effective from –60° to 250°F.
What does inhibited glycol mean?
Why choose inhibited glycol? When glycol is exposed to heat or oxygen, it can break down and cause damage to the metals in the system. By using inhibited glycols, the system is buffered to protect against this damage and provide corrosion protection as well.
What is ethylene glycol used for?
DESCRIPTION: Ethylene glycol is a useful industrial compound found in many consumer products. Examples include antifreeze, hydraulic brake fluids, some stamp pad inks, ballpoint pens, solvents, paints, plastics, films, and cosmetics. It can also be a pharmaceutical vehicle.Oct 20, 2021
What does ethylene glycol do in a reaction?
Ethylene glycol is used as a protecting group for carbonyl groups in organic synthesis. Treating a ketone or aldehyde with ethylene glycol in the presence of an acid catalyst (e.g., p-toluenesulfonic acid; BF3·Et2O) gives the corresponding a 1,3-dioxolane, which is resistant to bases and other nucleophiles.
What does inhibited propylene glycol mean?
Mid South Chemicals inhibited glycols utilize a unique corrosion inhibitor package that provides superior corrosion protection for most metals including yellow metal. It also stabilizes the system pH to maintain an environment for less corrosive conditions.
Is propylene glycol corrosive to steel?
According to Frank Porters book, Corrosion Resistance of Zinc and Zinc Alloys, propylene glycol will corrode zinc-coated steel less than 0.5 mil per year.Jul 27, 2009
Does propylene glycol corrode stainless steel?
Glycol/seawater mixtures containing > 50% glycol inhibit corrosion of 316L stainless steel and do not support bacterial growth.
Does glycol cause corrosion?
Ethylene glycol is a source of corrosion. Most corrosion from ethylene glycol is due to the decomposition to organic acids (such as glycolic acid) at higher temperatures. ... This corrosion leads to clogging of pipes, pumps, and valves, which decrease system efficiency.Nov 30, 2018
What drugs have propylene glycol?
Propylene glycol is a diluent found in parenteral medications commonly used in clinical practice such as intravenous (IV) diazepam (Valium), lorazepam (Ativan), phenobarbital, phenytoin (Dilantin), and nitroglycerin.
What can propylene glycol do to you?
Summary At toxic levels, propylene glycol has been found to cause seizures and severe neurological symptoms. There have also been cases of nausea, vertigo and strange sensations.Mar 2, 2018
Is propylene glycol good or bad?
Propylene glycol is “generally recognized as safe” by the U.S. Food and Drug Administration (FDA) (FDA 2017). FDA considers an average daily dietary intake of 23 mg/kg of body weight to be safe for persons 2–65 years of age (ATSDR 2008). Various foods, cosmetics, and pharmaceutical products contain propylene glycol.Oct 7, 2020
What is another name for propylene glycol?
Other names for propylene glycol are 1,2-dihydroxypropane, 1,2-propanediol, methyl glycol, and trimethyl glycol. Propylene glycol is clear, colorless, slightly syrupy liquid at room temperature. It may exist in air in the vapor form, although propylene glycol must be heated or briskly shaken to produce a vapor.
Is polyethylene glycol safe for humans to ingest?
Polyethylene glycol (PEG) is an inert amphiphilic polymer in contrast to ethylene glycol oxide, which is commonly known as a toxic compound used for synthesis of PEG. ... Therefore, once ingested or parenterally administered PEG remains intact until it is eliminated via urine or feces.
Can you drink polypropylene glycol?
Propylene glycol is considered non-toxic and is in fact found in many food products, including ice cream and other processed foods. ... In other words, a 150 pound person could safely drink over 3 and a half pounds of pure propylene glycol! At this level, research has shown there are no acute toxic or carcinogenic effects.Apr 24, 2017