What is Dowfrost used for?
What is Dowfrost used for?
DOWFROST is a propylene glycol-based fluid that contains a specially formulated package of industrial inhibitors that help prevent corrosion. Because propylene glycol fluids have low acute oral toxicity, DOWFROST is often used in applications where contact with food or beverage products could occur.
What is the difference between Dowfrost and dowtherm?
Generally, the DOWTHERM SR-1 or DOWFROST HD solution is chilled to between 20 and 26°F to make ice. A 25% solution of DOWTHERM SR-1 fluid has a freezing point below 14°F, while a similar solution of DOWFROST HD fluid has a freezing point below 16°F.
What is Dowfrost?
DowFrost is an industrially inhibited propylene glycol-based heat transfer fluid. Aqueous solutions of DowFrost fluid are designed to provide freeze/burst and corrosion protection, as well as efficient heat transfer, in water-based, closed-loop heating and air-conditioning systems.
What color is Dowfrost?
fluorescent yellow color
DOWFROST™ HD has a fluorescent yellow color and can operate at higher temperatures than regular DOWFROST™. DOWFROST™ HD is suitable for use in environments between -50°F and 325°F (-45°C and 160°C). DOWFROST™ HD is intended for low toxicity, non-food processing applications and provides freeze protection down to -60 F.
What is Dowfrost propylene glycol?
DOWFROST™ inhibited propylene glycol (PG) is a best-in-class, food-grade thermal fluid for a wide range of heat transfer applications. DOWFROST™ exhibits effective heat transfer from -50°F to 250°F (-45°C to 120°C) and can offer freeze protection or “burst protection” down to -60°F.
What is the freezing point of 30% propylene glycol?
Proper Use Of Propylene Glycol
| Freeze Points for Water/Propylene Glycol Solutions | ||
|---|---|---|
| Percentage of Glycol* | Percentage of Water | °C |
| 30 | 70 | -12.2 |
| 35 | 65 | -16.1 |
| 45 | 55 | -20.6 |
Is ethylene a glycol?
Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound with the formula (CH2OH)2. It is mainly used for two purposes, as a raw material in the manufacture of polyester fibers and for antifreeze formulations. It is an odorless, colorless, sweet-tasting, toxic, viscous liquid.
What is inhibited propylene glycol?
Inhibited Propylene Glycol is an inhibited industrial coolant and heat transfer agent designed to protect brass, copper, solder, steel, cast iron, aluminum, and other metals commonly found in industrial cooling and heating systems. 96.0% propylene glycol. Free of suspended solids. Colorless and odorless.
Why is propylene glycol banned in Europe?
Propylene glycol is a substance commonly used as a food additive or ingredient in many cosmetic and hygiene products. The US and European food authorities have declared it as generally safe for use in foods. This had led to health concerns about possible toxic effects from eating foods that contain it.
Does propylene glycol cause rust?
Even with a glycol solution in distilled water, both ethylene glycol and propylene glycol form acidic compounds under oxidation. This becomes corrosive on wetted surfaces and forms organic acid byproducts. These corrosion resistant paints and coatings offer additional protection for metal surfaces.
Why do alcoholics drink antifreeze?
Alcoholics may also drink it as a substitute for alcohol (ethanol). Ethylene glycol is itself relatively nontoxic. However, it is metabolized (changed) in the body by the enzyme alcohol dehydrogenase into glycolic acid, glyoxylic acid and oxalic acid, which are highly toxic compounds.
Is ethylene glycol the same as antifreeze?
Though coolant and antifreeze are often used interchangeably, they aren’t the same. Antifreeze is made of ethylene glycol or propylene glycol and is the basic ingredient, but it has to be mixed with water to create coolant, which is the cocktail you will find in the cooling systems of all “water-cooled” vehicles.