A comprehensive source for additional physical and chemical properties is reference 25. Just remember that it should be handled as though it were a food. Information regarding the chemical identity of ethylene glycol is located in table 41. Ethane diol 1,2 meg glycol dihydroxy ethane 1,2 ethylene glycol recommended use restrictions of use. End uses for meg range from clothing and other textiles, through packaging to kitchenware, engine coolants and antifreeze. Monoethylene glycol or meg is a vital ingredient for the production of polyester fibres and film, polyethylene terephthalate pet resins and engine coolants. A diol is a chemical compound containing two hydroxyl groups. Persistence and degradability ethylene glycol 107211 persistence and degradability readily biodegradable. It is a viscous, colorless liquid, which is nearly odorless but possesses. The thermo physical properties such as thermal conductivity, viscosity, density and specific heat are measured using kd2 pro thermal. Ethylene glycol is used in many different applications, but its also famous for being a deadly poison. Section 4 pages 162 to 180 lists oligomeric and polymeric chemicals for the category formula, r och 2ch 2 n or, n is unspecified that might contain a glycol ether component n. Also it has a very good solvent and dirt rust remover feature.
Archived from the original pdf on 27 september 2007. Section 4 pages 162 to 180 lists oligomeric and polymeric chemicals for the category formula, r och 2ch 2 n or, n is unspecified that might contain a glycol ether component n 1, 2, or 3. Table 4 lists various physical and chemical properties and constants for the propylene glycols. All the properties have negative values and exhibit a minimum at the same waterrich. The propylene glycol family of chemical compounds consists of monopropylene glycol pg, dipropylene glycol dpg. See also typical freezing and boiling points of aqueous solutions of dowtherm sr1 and dowthermsr4000 pdf. The combined companies offer customers around the world a broader product offering of chemical, plastic and agricultural products. Guide to measuring glycol contamination in oil 3 blotter test. Advice in this document relates only to product as originally supplied. Despite similarities in physical properties and chemical structure, ethylene glycol and propylene glycol have vastly different toxicities. The effluent from the glycol reactor goes to the evaporator section to remove the water. Ethylene glycol based water solutions are common in heattransfer applications where the temperature in the heat transfer fluid can be below 32 o f 0 o c.
United states office of environmental revised december. One must remember that the temperature of the refrigerant will be 10 15 f below your glycol solution temperature. Triethylene glycol, hoc 2 h 4 o 3 h, is a colourless, odourless, nonvolatile, and hygroscopic liquid. If the oil drop absorbs outward and there are defined soot rings with a. The reported lethal dose range for an adult human is 12 mlkg or 14 to 12 cup. The hydroxyl groups on glycols undergo the usual alcohol chemistry, giving a wide variety of possible derivatives. Use dry chemicals, co2, water spray or alcoholresistant foam. The solubility of dfp in water, ethylene glycol eg, propylene glycol pg and polyethylene glycol 400 peg 400 at 293. Propylene glycol dipropylene glycol1 tripropylene glycol1 propylene glycols glycols chemistry centers on the two hydroxyl oh groups that characterize them as glycols.
Physical properties the chemical formula for ethylene glycol is c 2 h 6 o 2, and its molecular weight is 62. Rheological properties of polyethylene glycol solutions. Propylene glycol usp proper handling page 2 of 3 if good hygienic practices are followed and the recommended materials of construction are used, the handling of propylene glycol usp should be no problem. Tccs ethylene glycol meg is a toxic, colorless, practically odorless, lowvolatility, lowviscosity, hygroscopic liquid. The ion represented by the peak at mz 45 is formed via heterolytic cleavage of molecular ions with the charge and radical sites on an etheroxygen atom. In the present work, we report the thermophysical properties of ethylene glycol and water mixture based silver nanofluids.
Explosive properties incompatible materials chemical stability strong oxidizing agents. Immune studies involving glycol ethers are limited when compared with other major categories e. Propylene glycol, industrial grade, is the preferred glycol for manufacturing high. 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. Availability of deg will depend on demand for derivatives of the primary product, ethylene glycol, rather than on deg market requirements. Degree brix is a measure of sugar concentration in a fluid and is important in fermentation applications.
Ethylene glycol and propylene glycol are manufactured chemicals that have similar physical properties and uses. Ethylene glycoltms, diethylene glycoltms, and glyceroltms 30 m db1 column or 30 m db5 column, 60175 at 4min. Epa has not classified ethylene glycol for carcinogenicity. Plasticizer polyethylene glycol was supplied by sigma aldrich uk. In adobe acrobat, how a form field behaves is determined by settings in the properties dialog box for that individual field. This pairing of functional groups is pervasive, and many subcategories have been identified. Storage keep cool and dry place applications butylene glycol is an organic solvent.
Dietert, in endocrine disruption and human health, 2015. The most common hvac glycols include ethylene and propylene based compounds. Oxidizing properties component information stable under recommended storage conditions. The most intense peak observed in the mass spectra of di and triethylene glycol is at mz 45. The three supports were compared with two commercially available peggrafted supports tentagel s oh, argogeloh and two polystyrene supports aminomethylated polystyrene psnh2 and macroporous aminomethylated polystyrene plams with respect to their swelling properties, loading, nmr spectral quality, as well as solvent and reagent.
Identification of the substancemixture and of the companyundertaking date issued 04. Other derivative chemicals will have different properties and hazards. Below is a list of certifications and regulatory compliances of glycol, inc. A study on ip2c actuators using ethylene glycol or emitf. Understanding glycol laboratory analysis tt0380312 8287 214th street west lakeville, minnesota 55044 9524694965 fax 9524691252 page 1 of 3 glycol is commonly used for freeze protection in many building closed chilled loops and hot loops. Analysis of ethylene glycol in wastewater by direct. Ethylene glycol safety data sheet according to federal register vol.
Ethylene glycol also called 1,2ethanediol, molecular formula hoch 2 ch 2 oh is a colourless, oily liquid possessing a sweet taste and mild. If the oil drop absorbs outward and there are defined soot rings with a yellowbrown center, that is. United states office of environmental revised december 2000. It is one in a series of public health statements about hazardous.
Hexylene glycol is an oily colorless liquid with a mild sweet odor. Glycol, any of a class of organic compounds belonging to the alcohol family. Examples of diols in which the hydroxyl functional groups are more widely separated include 1,4butanediol ho. Monoethylene glycol meg monoethylene glycol meg monoethylene glycol meg in its pure form, it is an odorless, colorless, syrupy liquid with a sweet taste. Ethylene glycol is by far the largest volume of the glycol products in a variety of applications. A sheet of common blotter paper is placed on a flat surface and a dipstick is used to place a few drops of oil in the middle of the.
Use the cfpdf tag to read an existing pdf, write metadata to it, merge pdfs together, delete pages, create thumbnails of the pages, extract text and images, add or remove watermarks, electronically sign or unsign documents, sanitize and redact pdf contents for better security, and safeguard the pdfs with a password. Pdf thermophysical properties of ethylene glycolwater. Both chemicals are clear, colorless, odorless, sweettasting, highly viscous liquids. Ethylene glycol is the most common antifreeze fluid for standard heating and cooling applications.
Propylene glycol causes poisoning only rarely and under unusual circumstances. Analysis of ethylene glycol in wastewater by direct aqueous. This chemistry permits ethylene glycol to act as an intermediate in a wide range of. Determination of ethylene glycol in used engine oil by headspacegas chromatography author.
The system concept represents a lagrangian point of view where the dynamic behavior of a fluid particle is considered. It is completely miscible with water and many organic liquids. Most measurement devices work based on eulerian method. Complete sales specifications are available on request.
It has a maximum freeze protection concentration of 67% ethylene glycol in water. Physical properties of polyethylene glycol pegbased. They contain specially formulated packages of industrial inhibitors that help pre. Ethylene glycol, industrial grade page 4 of 12 398 c 748. It is labeled an organic compound in chemistry due to its carbon attributes. They, therefore, have intermediate properties between alcohols, with a single hydroxyl group and glycerine with its three hydroxyl groups. Physical properties units propylene glycol dipropylene glycol tripropylene glycol chemical name 1,2propanediol oxybispropanol 1methyl1,2ethanediylbisoxy bispropanol formula c3h8o2 c6h14o3 c9h20o4 cas number1 57556 25265718 24800440 einecs number 2003380 2467703 2464660 molecular weight 76. Polyethylene glycol 25322683 no no no chemical weapons convention. The most common industrial diol is ethylene glycol. Ethylene glycol heattransfer fluid engineering toolbox. The peak at mz 31 represents an ion formed by a hydrideshift rearrangement. Safety data sheet mono ethylene glycol 1 identification of the substancepreparation and companyundertaking application automotive industry. The reaction of the ethylene oxide and water to form ethylene glycol is a noncatalytic reaction. If teg is needed above these concentrationsthen additional stripping of the water is required using dry, preheated.
Rheological properties of polyethylene glycol solutions and gels. You can set properties that apply formatting, determine how the form field information relates to other form fields, impose limitations on what the user can enter in the form field, trigger custom scripts, and so on. Ethylene glycol 107211 propylene glycol 57556 division of toxicology september 1997 this public health statement is the summary chapter from the toxicological profile for ethylene glycol and propylene glycol. Ethylene glycol should be avoided if there is a slightest chance of leakage to potable water or food processing systems. A peak at mz 31 is also expected because oxygen is present. Everything you wanted to know about glycol a brewery glycol.
Pdf volumetric properties of the waterethylene glycol. Excess volumes ve, viscosity deviation, excess refraction. Propylene glycol 96 performance additives 4 color colorless specific gravity 1515c 6060f 1. You might have to rename them so they get sorted the way you want. An alternative, albeit a temporary bandaid type fix and one that acts directly on the bloodstreams glucose level is intravenous dextrose or glucose allowed. Organic solvents present in many household cleansers corne from a broad range of compound classes, including alcohols e. Instead solutions based on propylene glycol are commonly used. The term is often applied to the simplest member of the class, ethylene glycol. This information includes synonyms, chemical formula and structure, and identification numbers. Their chemical structures differ by only one methyl group ethylene glycol, hoch 2 ch 2 oh. The presence of ethylene glycol in used motor oil is an indication of antifreeze coolant leakage into the crankcase of an internal combustion engine, thus predicting enginewear problems. Glycols and glycol ethers underivatized in the mass spectra of di and triethylene glycol, the largest peak observed is at mz 45.
Kister equation, and the corresponding parameters are derived. To combine a group of images into a pdf file in windows 10, first you need to make sure your files are listed in file explorer in the order you want them to appear in the pdf file. Engineering and operating guide for dowfrost and dowfrost hd. The glycol feed stripper bottoms going to the glycol reactor is preheated and flows through a 24 pipe reactor 633 long. This lesson goes over this substances properties, names, structures, and formula. Ethylene glycol is a colourless, odourless, syrupy liquid and is completely soluble in water. Ifthere is backpressure on the regenerator this reduces to 99. Ethylene glycol is acutely toxic to humans, whereas propylene glycol is a safe additive for foods and medications. Determination of ethylene glycol in used engine oil by. Therefore, fluid properties and parameters are computed as filed functions, e. Propylene glycol provides the rumen the precursors for the animal to create its own glucose, due to its fate in the rumen environment. Use water spray, water fog or alcoholresistant foam.
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