0000020489 00000 n 0000018527 00000 n propylene glycol fluids are used because of their low acute oral toxicity vs. the moderate toxicity of ethylene glycols. Propylene glycol is less toxic, breaks down more rapidly and is more environmentally friendly. 0000011765 00000 n 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. However, the mixed solution of water-glycol will be thicker, heavier, than the water alone was. 0000022592 00000 n Based on this reading you can then adjust the ratio of glycol to water to complete the charge of the system. Click here for our glycol freeze point concentration chart 0000016861 00000 n There are two basic types of glycol protection available for your closed-loop HVAC system: “burst protection” and “freeze protection.” Burst protection is sufficient if the system will remain dormant or inactive when the temperature drops below freezing and there is adequate space to accommodate the expansion of an ice/slush mixture. 0000037202 00000 n 0000051898 00000 n 0000033579 00000 n 0000024445 00000 n 0000046407 00000 n H����nGE����Pn����#Q�2dƁ�Ab @6�"��OLͰ��Sm���%�{��n�|�vx�"�o��eB��(Ϭ 0000052156 00000 n This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. 0000040222 00000 n 0000049347 00000 n 0000063808 00000 n 0000018031 00000 n 0000027718 00000 n 0000064147 00000 n From the chart found on the net below the mixture is approximately 46% prop/ 54% water Freezing Point Propylene Glycol Solution (% by mass) 30 40 50 60 Temperature 7 -8 -29 -55 The operating temperature of the mixture is 45 deg F. Amsoil propylene glycol antize and electronic cigarette viscosity of automotive antize refrigerant fluid an overview. CONVERSION CHARTS ETHYLENE GLYCOL & PROPYLENE GLYCOL The Conversion Charts below are to be used with the PPE Precision Specific Gravity Hydrometer and Beaker. However it should never be confused with ethylene glycol (often referred to as glycol)! 0000032032 00000 n Propylene glycol is also used to make polyester compounds, and as a base for deicing solutions. 0000003261 00000 n 0000050770 00000 n 0000077324 00000 n Any combination of EO and propylene oxide will work; however, the ratio of EO to propylene oxide may be tailored to control the water absorption. Freezing Points of Methanol/Water Solutions % by Weight % by Volume 10° 0° TEMPERATURE °C NOVOSOLUTION.CA-10° -20° -30° -40° -50° -60° -70° -80° -90° -100° -110° -120° -130° This is in applications where no ice crystals can be permitted to form, or where there is inadequate space for expansion of an ice/slush mixture. 0000036763 00000 n The polyetheramines used to make the amidoamines are prepared from EO and propylene oxide. 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. 0000052134 00000 n 0000020619 00000 n About 41% by weight of propylene glycol in water will get you to a freezing point of - 10° F. Since propylene glycol has a density of 1.04 g/cm^3, this corresponds to 42.5% by volume. 0000051623 00000 n 0000012306 00000 n 0000018939 00000 n 0000051552 00000 n 0000067651 00000 n SHIPS IN JUST 1-2 BUSINESS DAYS | CLICK HERE FOR DETAILS, DOWFROST™ Inhibited Food Grade Propylene Glycol, Downloadable Technical and Safety Materials, Calculate Freeze Point and Burst Point of Glycol (Required Concentration), Increasing Glycol Concentration in Your System (Balancing System), Glycol Calculator: Determine Required Concentration for Cold Weather Protection. These questions ultimately affect the mixture ratio of the glycol. 0000025426 00000 n of a component, the boiling point of a mixture, and the specific gravity of the mixture. 0000046989 00000 n Specific gravity of propylene glycol is in the range Specific Gravity - SG - Propylene Glycol Solution (%) by mass 0 10 20 30 40 50 60 by volume0 10 20 29 40 50 60 Specific Gravity - SG - 1) 1.000 1.008 1.017 1.026 1.034 1.041 1.046 1) Specific gravity based on propylene glycol solutions with temperature 60oF. It is necessary to add water or glycol to maintain proper freeze point temperature. 0000018334 00000 n The purity of the propylene glycol should satisfy drug and food safety standards. Propylene Glycol . 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