propylene glycol freeze chart

Tech 101 – the colors of antifreeze | Hemmings Daily

Aug 01, 2014· Jim, great article, but please check the MSDS for Dex-Cool. You'll find that it is not propylene glycol but rather ethylene glycol. Most, but not all brands also add a small amount of diethylene glycol. There are several propylene glycol coolants that are mostly marketed as environmentally-friendly, that may warrant a paragraph or two of .

propylene glycol freeze chart,

Is Propylene Glycol the Same As Antifreeze .

Is propylene glycol the same as antifreeze? Dr. O'Keefe: Once ingested, propylene glycol is either excreted in the urine or is metabolized to lactic acid, a normal metabolic product. Ethylene glycol (used in car antifreeze) is toxic because it is metabolized to oxalic acid, which is toxic.

propylene glycol freeze chart,

Glycols Freez-Kontr'l - Nu-Calgon

concentrations of Freez-Kontr'l versus freezing points. Refer to Figure 1 for a complete list of concentrations of Freez-Kontr'l versus freezing points and boiling points. Figure 2 presents similar data in a chart. Corrosion Protection Freez-Kontr'l contains the best available corrosion inhibitor package for use with propylene glycol.

Propylene Glycol - LyondellBasell

Propylene Glycol Freeze Point of Aqueous Propylene Glycol Solutions Freeze Point Chart 40 Freeze Point of Aqueous Propylene Glycol Solutions 20 0 -20 -40 -60 -80 0 10 20 30 40 50 60 70 Propylene Glycol, % by Wt. Source: Glycols. Curme and Johnston, Reinhold Publishing Corp., New York (1952).

Food Grade Glycol

If everything makes sense add more Propylene Glycol to the system. How do I add Propylene Glycol to the solution to obtain the proper freeze point protection? First, determine your freeze point protection you desire. Use a propylene glycol freeze chart as a guideline. 30% Propylene Glycol provide protection to 5 F

Is Propylene Glycol the Same As Antifreeze .

Is propylene glycol the same as antifreeze? Dr. O'Keefe: Once ingested, propylene glycol is either excreted in the urine or is metabolized to lactic acid, a normal metabolic product. Ethylene glycol (used in car antifreeze) is toxic because it is metabolized to oxalic acid, which is toxic.

Propylene Glycol Freeze Chart - buychemicalsdirect

Click on the pdf below to view the freeze chart for propylene glycol.

A Guide to Glycols - msdssearch.dow

Propylene glycols (glycols) are liquids with high boiling and low freezing points, which permit volume storage in a wide range of climates, usually without special insulation or heating requirements.

Glycol Percentage Relative to Freeze Point - ClenAir

Glycol Percentage Relative to Freeze Point Propylene Glycol .ClenAir Freezing Point Propylene Glycol Solution (%) 0% 10% 20% 30% 40% 50% 60% Glycometer™ Temperature (F)° 32° 26° 18° 7° (-8°) (-29°) (-55°) Ethylene Glycol

How to Test Ethylene & Propylene Glycol | It Still Runs

Fortunately, there are a number of reliable methods available to evaluate antifreeze quality. 1. Use CoolTrak coolant test strips (kimdon) to test a sample of ethylene or propylene glycol based coolants. Dip the strip in the test substance to indicate the boiling point, freezing point and PH.

Engineering and Operating Guide for DOWFROST and …

propylene glycol-based fluids There are two Dow propylene glycol-based fluids: DOWFROST: An industrially inhibited fluid with an operating range of -50°F to 250°F (-46°C to 121°C). DOWFROST HD: An industrially inhibited fluid with an operating range of -50°F to 325°F (-46°C to 163°C). Compared to DOWFROST fluid,

askavantor force com - Freezing Points of Propylene and .

Propylene Glycol Solution (% by mass) 0: 10: 20: 30: 40: 50: 60: Freezing Point Temperature (°F) 32: 26: 18: 7-8-29-55: Freezing Point Temperature (°C) 0-3-8-14-22-34-48

propylene glycol freeze chart,

DOW FROST

Propylene Glycol 96 4 Color Colorless Specific Gravity 15/15°C (60/60°F) 1.050-1.060 pH of Solution (50% glycol) 9.0-10.0 Reserve Alkalinity (min.) 10.0 ml Secondary heating and cooling Freeze and burst protection of pipes Various deicing, defrosting, and dehumidifying

What's your point: Freeze Point or Burst Point? - Dynalene .

Oct 16, 2015· For example if a coolant loop or system is being winterized and temperatures will fall down to -10°F at the lowest, a mixture of 30% propylene glycol to 70% water will be enough to protect the system. 30% propylene glycol has a freeze point of 8°F but the burst point is -18°F. This system will be protected but the coolant will be slushy.

How to Test Ethylene & Propylene Glycol | It Still Runs

Ethylene glycol and propylene glycol are the major constituents of antifreeze. Operating an automobile without proper antifreeze can cause permanent damage, so testing ethylene and propylene glycol is an important component of proper vehicle maintenance. Fortunately, there are …

propylene glycol freeze chart,

Antifreeze - Wikipedia

Propylene glycol is considerably less toxic than ethylene glycol and may be labeled as "non-toxic antifreeze". It is used as antifreeze where ethylene glycol would be inappropriate, such as in food-processing systems or in water pipes in homes where incidental ingestion may be possible.

What's your point: Freeze Point or Burst Point? - Dynalene .

Oct 16, 2015· For example if a coolant loop or system is being winterized and temperatures will fall down to -10°F at the lowest, a mixture of 30% propylene glycol to 70% water will be enough to protect the system. 30% propylene glycol has a freeze point of 8°F but the burst point is -18°F. This system will be protected but the coolant will be slushy.

How to match glycol levels to various HVAC systems

Aug 24, 2016· All glycol manufacturers provide charts (see Figure 1), which show the percentage of glycol required to provide a certain level of protection against freezing or burst protection. Typically a 50 per cent concentration of glycol will give you freeze protection down to -30F/-34C.

What Is Propylene Glycol? - Keller-Heartt

Freeze Protection. Since Propylene Glycol is used to lower the freezing point of water, it's commonly used as a de-icer for airport runways and aircraft. It is also designed for use in hydronic systems for freeze and corrosion protection.

Selecting the Proper Glycol Concentration for Closed-Loop .

Aug 14, 2016· Freeze protection is also appropriate for closed-loop systems that must be protected in the event of power or pump failure. See the charts below for help determining what percentage of glycol your system needs. The charts are based on different concentrations at various temperatures. DOWTHERM (Ethylene Glycol) DOWFROST (Propylene Glycol)

Ethylene Glycol Heat-Transfer Fluid

Ethylene Glycol based water solutions are common in heat-transfer applications where the temperature in the heat transfer fluid can be below 32 o F (0 o C).Ethylene glycol is also commonly used in heating applications that temporarily may not be operated (cold) in surroundings with freezing conditions - such as cars and machines with water cooled engines.

Using Glycol In Closed Loops | How to Use Glycol in Systems

Ethylene glycol is the industry standard for closed loop freeze protection and is the product we use in most applications. Where food or potable water contact may be a concern, specify propylene glycol. Propylene glycol is less toxic, breaks down more rapidly and is more environmentally friendly.

Propylene Glycol - Draught Quality

PROPYLENE GLYCOL - WATER SOLUTION SPECIFIC GRAVITY, CONCENTRATION AND FREEZING POINT CHART Specific Gravity – SG 60ºF 1.000 1.008 1.017 1.026 1.034 1.041 1.046 Propylene Glycol Solution % by mass 0 10 20 30 40 50 60 by volume 0 10 19 29 40 50 60 Freezing Point Temperature

Ethylene Glycol-Based Engine Antifreeze/Coolant Protection .

ETHYLENE GLYCOL HYDROMETER SCALE - For cooling systems larger than shown, use double the quantity of antifreeze/coolant required for a system one-half as large. For systems smaller than shown, use half the quantity of antifreeze/coolant required for a system twice as large. Ethylene Glycol-Based Engine Antifreeze/Coolant Protection Chart

Ethylene Glycol-Based Engine Antifreeze/Coolant Protection .

ETHYLENE GLYCOL HYDROMETER SCALE - For cooling systems larger than shown, use double the quantity of antifreeze/coolant required for a system one-half as large. For systems smaller than shown, use half the quantity of antifreeze/coolant required for a system twice as large. Ethylene Glycol-Based Engine Antifreeze/Coolant Protection Chart

Propylene Glycol based Heat-Transfer Fluids

For many heat-transfer applications it is necessary to use a heat-transfer fluid with lower freezing point than water. The most common antifreeze fluid - ethylene glycol - must not be used where there is a chance of leakage to potable water or food processing systems. In food processing systems the common heat-transfer fluid is based on propylene glycol.

Ethylene Glycol and Propylene Glycol: Health Information .

Propylene glycol is also less acutely toxic than ethylene glycol because the acidosis that it causes does not result in the formation of calcium oxalate crystals. A group of human volunteers were exposed to 7-19 ppm ethylene glycol by inhalation 20-22 hours per day for four weeks.

Physical Properties of Propylene Glycol - Food Grade Glycol

Physical Properties of Propylene Glycol Temperature, ˚F 60 40 20 0 -20 -40 -60 020 40 60 80 100 Propylene Glycol % (balance water and corrosion inhibitors) FIGURE 1 Freezing Points of Aqueous Solutions of Propylene Glycol. Propylene Glycol Freeze Point.

SUBJECT: PROPER USE OF INHIBITED PROPYLENE GLYCOL #7 …

Freeze protection is required so ice crystals do not form and cause severe damage to both the water and refrigeration system. CHOOSING THE PROPER GLYCOL: For getting the most efficiency from your system, a propylene glycol such as "DowFrost" is a must. DowFrost contains

Antifreeze Reference Chart - O'Reilly Auto Parts

Antifreeze Reference Chart B type, color and application . Base Ethylene Glycol Propylene Glycol Phosphates NoYes Silicates Low SilicateNoSilicate free Low Silicate/OAT Nitrites2 YesNo Service Extended service Interval3 Fill for life (w/SCAs every 300,000 miles) Up to 5 years or