Most of you are probably wondering, what the heck is propylene glycol. Conversion charts for weight to volume calculations. Sep 20, 2010 most of you are probably wondering, what the heck is propylene glycol. Definition propylene glycol esters of fatty acids are mixtures of propylene glycol mono and diesters of saturated and unsaturated fatty acids derived from edible oils and fats.
Density varies with temperature and the graphs below show the densities of dows glycols and glycol water solutions over a range of temperatures. Density, viscosity, surface tension, and molar volume of. Aug 12, 2018 it begs the question, how much propylene glycol is too much. As use conditions are not within its control, kellerheartt does not guarantee results from use of the information or products herein, and gives no warranty, express or implied. We all want to know if ecigarettes are safe, especially when using propylene glycol as vape juice. We have generally used iupac international union of pure and applied chemistry nomenclature as the primary name. Propylene glycol in medications may make some babies sicker.
Containing two alcohol groups, it is classed as a diol. How to convert 8 us gallons of propylene glycol to pounds. Propylene glycols density values question what are the density values for glycols and glycol water solutions. Propylene glycol is also present in propylene glycol alginate, which is known as e405.
Calculate the percentage of c 3 h 8 o 2 in the propylene glycol by dividing the area under the propylene glycol peak by the sum of the areas under all of the peaks, excluding those due to air and. Propylene glycol in medications may make some babies. Uspcertified base propylene glycol in the industry at greater than 99. Materials, substances and compounds volume to weight conversions. It is a viscous, colorless liquid, which is nearly odorless but possesses a faintly sweet taste. To request a quote or for more information about air products, please fill out the form below, and an air products representative will contact you shortly. For additional information about dowtherm ethylene glycolbased fluids, call 18004474369 and request form no. Jul 19, 2014 the density of propylene glycol is 1,036 gcm3. Major oxygenated, chlorinated and nitrated derivatives. Propylene glycol is used as an organic solvent and diluent in pharmaceuticals and many other industrial applications. The concern arises when propylene glycol is heated up and inhaled. According to the food and drug administration fda, reports have shown that there could be severe health risks for fragile babies receiving the oral medication kaletra. Volume 10 polypropylene glycol 273 note commercially available ppgs may contain antioxidants which are more or less potent sensitizers.
Propylene glycol is a propanediol that exists as a clear, colorless and hygroscopic liquid and consists of propane where the hydrogens at positions 1 and 2 are substituted by hydroxyl groups. The us and european food authorities have declared it. It was initially thought to be innocuous 1 and is approved by the united states food and drug administration for use as a solvent in food, drugs and cosmetics. Measure the area under all peaks by any convenient means, calculate the normalized area percentage of propylene glycol, and report as weight percentage. Technical data dowfrosttm fluid, product description composition, by weight glycol 95. Calculate weight of ethylene per volume, it weighs 1. Propylene glycol is also used to make polyester compounds and as a base for deicing solutions. Knowing the specific gravity of a liquid allows you to convert volume amounts ml into weights g for mixing. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight in atomic mass units of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. We want to calculate the mass in pounds from a volume in us gallons. Propylene glycol c3h8o2 cid 1030 structure, chemical names, physical and. Acute oral toxicity studies on polypropylene glycols of various molecular weights 300 to 3900 da have indicated ld50 values rats ranging from 0.
Ethylene glycol heattransfer fluid engineering toolbox. To convert a quantity of a substance or material expressed as a volume to mass we simply use the formula. When released into the soil, this material is expected to readily biodegrad e. Unique converter from weight to volume and viceversa. Propylene glycol is a colorless, odorless liquid with a molecular weight of 76. Volume to weight, weight to volume and cost conversions for biodiesel with temperature in the range of 10c 50f to 140c 284f weights and measurements an us teaspoon is a liquid measure of volume. The pressure forces on any solid surface by liquid or gas, do not apply to any single point on that surface. When released into the soil, this material is expected to leach into groundwat er. After placing a sample of the glycol in the beaker, check the reading on the hydrometer and match it to the appropriate chart to accurately determine the glycol to water weight percentage. Inhibited propylene glycolbased heat transfer fluid. In food processing systems the common heattransfer fluid is based on propylene glycol.
Propylene glycol may sound fancy and scientific, but its really just a clear, odorless liquid made from petroleum. Pg uspep is kosher and complies with halal requirements. The products are produced either by direct esterification of propylene glycol with fatty acids or by transesterification of propylene glycol with oils or fats. Propylene glycol stereospecific metabolism in mammals. Answer density is the weight per unit volume of a mass. We want to calculate the mass in tonnes from a volume in us gallons. A guide to glycols 4 the structural formulas of the propylene glycols commercially produced by dow are. Surface tension, hansen solubility parameters, molar. This product has been classified in accordance with the hazard criteria of the canadian controlled products regulations cpr and the msds contains all the information required by the cpr. Propylene glycol pg uspep is a pharmaceutical grade of monopropylene glycols pg or mpg with a specified purity greater than 99. Propylene glycol has been designated by the fda as generally recognized as safe, or gras, for consumption. Propylene glycol solution %, by mass, 0, 10, 20, 30, 40, 50, 60.
Ethylene glycol should be avoided if there is a slightest chance of leakage to potable water or food processing systems. 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. Glycol percentage by volume f solution solution solution solution typical properties, not to be construed as specifications. Concentrate based on volume of propylene glycol, mixtures based on volume of truegard brands typical properties, not to be construed as specifications. More information on molar mass and molecular weight. Propylene glycol is used by the chemical, food, and pharmaceutical industries as an antifreeze when leakage might lead to contact with food.
Propylene glycol is also used to make polyester compounds, and as a base for deicing solutions. Ethylene glycol is the most common antifreeze fluid for standard heating and cooling applications. Volume 10 polyethylene glycol 251 whereas higher molecular weight pegs which are not absorbed are mainly eliminated via the faeces. Saturation properties of dowfrost heat transfer fluid at 30% propylene glycol concentration by volume. Density varies with temperature and the graphs below show the densities of dows glycols and glycolwater solutions over a. For many heattransfer applications it is necessary to use a heattransfer fluid with lower freezing point than water. Density, viscosity, surface tension, and molar volume of propylene. Asked in antifreeze and engine coolant, units of measure, volume, weight and mass how much does a gallon of ethylene glycol weigh. Propylene glycol based heattransfer fluids engineering toolbox. Engineering and operating guide for dowfrost and dowfrost hd. 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.
Because propylene glycol fluids have low acute oral toxicity, dowfrost propylene glycolbased fluids are often used in applications where contact with food or beverage products could occur. How much does a gallon of ethylene glycol weigh answers. Highest uspcertified base propylene glycol in the industry at greater than 99. We know how to convert from lbs to oz or from gallons to kilograms. Polypropylene, amorphous volume to weight conversion. Instead solutions based on propylene glycol are commonly used. Usp grade inhibited propylene glycol dowfrost is a trademark product of dow chemical and is a usp grade inhibited propylene glycol design for use in water systems in food grade facilities. Specific gravity is defined by astm d4439 from volume 04.
Propylene glycols density values question what are the density values for glycols and glycolwater solutions. Food and drug administration fda under 21 cfr x184. Procedure inject a suitable volume, typically about 10 l, of propylene glycol into a suitable gas chromatograph, and record the chromatogram. Propylene glycol used as an excipient european medicines agency. The products are produced either by direct esterification of propylene glycol with fatty acids. The truth about propylene glycol, according to a chemist. Boiling points of propylene glycol solutions boiling points of propylene glycol boiling point propylene glycol. Inhibited propylene glycol chemworld inhibited propylene glycol is a branded corrosion inhibited propylene glycol designed for use in water systems. Mar 02, 2018 propylene glycol is a substance commonly used as a food additive or ingredient in many cosmetic and hygiene products. Whats the deal with using propylene glycol as vape juice for ecigarettes. This medication helps to fight viruses hiv1 specifically. How to convert 1 us gallon of propylene glycol to tonnes. Propylene glycol toxicity associated with lorazepam.
Propylene glycol is a compound which is generally recognized as safe gras by the u. Studies of the excretion of peg after oral, intravenous, intramuscular and subcutaneous administration peg speciesdose, form study recovery % references. Propylene glycol was administered to two groups of female rats at 73 mg or 294 mg propylene glycol 100 gram body weight and various hematological effects were examined. Density specific gravity an overview sciencedirect topics. The us and european food authorities have declared it as generally safe for. Simply multiply the specific gravity by your desired volume to get the amount of grams. Propylene, also called propene, a colourless, flammable, gaseous hydrocarbon, c 3 h 6, obtained from petroleum. A centimeter is a metric measurement unit of length the pressure forces on any solid surface by liquid or gas, do not apply to any single point on that surface. The specific gravity of alcohols and ketones increases with increasing molecular weight whereas the specific gravity of esters and glycol ethers. Propylene glycol solution % by mass 0 10 20 30 40 50 60 by volume0 10 19 29 40 50 60 temperature of 32 26 18 7 8 29 55 oc 0 3 9 16 23 35 48 due to slush creation propylene glycol and water solutions should not be used close to the freezing. This product has been classified in accordance with the hazard criteria of the canadian controlled products regulations cpr and the msds contains all the.
Freezing point of propylene glycol based water solutions. How much does a gallon of propylene glycol weigh answers. Acute exposure propylene glycol was relatively harmless ld50 21 gkg in acute oral toxicity studies involving rats. Experimental and calculated values of density, viscosity, surface tension and molar volume data are listed in table 1. With increasing molecular weight, the toxicity increases. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight in atomic mass units of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all. Glycol percentage relative to freeze point propylene glycol. Density varies with temperature and the graphs below show the densities of dows glycols and glycolwater solutions over a range of temperatures. Propylene glycol is a synthetic liquid substance that absorbs water. Propylene glycol is a substance commonly used as a food additive or ingredient in many cosmetic and hygiene products.