ethylene oxide quizlet

Which of the following best explains why the pressure cooker is so important in the canning process? 7. Although ethylene oxide is a hazardous material in terms of flammability, reactivity and toxicity, it can be distributed and handled safely provided that appropriate precautions are observed. Ethylene oxide is a colorless gas at room temperature and a colorless liquid below 51°F (10.7°C). Which of the following is an example of microbial control? Ethylene oxide monitoring data from July through October 2019 show little change over the previous nine months. It dissolves easily in water, alcohol, and most organic solvents. Oxidizing agents include all of the following EXCEPT, All of the following substances are effective against nonenveloped viruses EXCEPT. Existing monitoring methods are not sensitive enough to detect ethylene oxide … Ethylene oxide, called oxirane by IUPAC, is an organic compound with the formula C 2 H 4 O.It is a cyclic ether and the simplest epoxide: a three-membered ring consisting of one oxygen atom and two carbon atoms.Ethylene oxide is a colorless and flammable gas with a faintly sweet odor. Any process that destroys the non-spore forming contaminants on inanimate objects is sterilization. Which of the following is the best method to sterilize heat-labile solutions? Ethylene oxide calibration solution: Solution of about 4.5 mg ethylene oxide … the needle ethylene oxide bubbles should not appear so that ethylene oxide does not es-cape when the needle is withdrawn through the septum. Surface-active agents, or surfactants, decrease surface tension among molecules of a liquid. Uses & Benefits Consumer Applications. 1.2 The transport of ethylene oxide in bulk is subject to strict regulations within most countries in Europe. Ethylene glycol has been synthesized by the oxidation of ethylene with O 2 to ethylene oxide and the subsequent hydration of ethylene oxide to ethylene glycol. In smaller amounts, ethylene oxide is used as a pesticide and a sterilizing agent. -Is used to sterilize items that are sensitive to heat or moisture … Most ethylene oxide is used as an intermediate in the production of other chemicals used to manufacture products, such as fabrics for clothes, upholstery, carpet and pillows. C2H4O. It is a relatively ‘cold’ sterilization technique and offers high compatibility with most materials used in the manufacture of medical devices, such as plastics, polymers, metals and glass. In addition, the Ethylene Oxide / ehtylene chlorohydrin / ethylene glycol, Ethylene Oxide (EO) residual level... Ver…, Ethylene Oxide (EO) residual level... Sma…, Ethylene Oxide (EO) residual level... Med…, Ethylene Oxide (EO) residual level... Lar…, -gas sterilization... -Use mostly in hospitals or large clinics, Control-Chemical Agents: Phenolics, Oxidizing Compunds, Ethylene oxide/propylene, Dye, Acids and alkalie, Chemical Control, Binds to nucleic acids, disrupts cell membranes and denatures…, Used phenol for the first time in surgery 1865, low temperatures, which offers an advantage for plastic and ru…, 4 to 12 hrs, depending on the sterilizer model used, required to remove the gas molecules that are bound to the pla…, Exposing products to ethylene oxide gas under vacuum in a seal…, Gas concentration, humidity, temperature, and time, Since EO is an alkylating agent, it disrupts the DNA of microo…, Pre-conditioning to assure a repeatable process regardless of…, chlorhexidine/chlorine/ethylene oxide/phenolic compound/ silver nitrate. Ethylene oxide is a flammable gas with a somewhat sweet odor. Which of the following best describes why microbial death curves are typically plotted logarithmically? -it kills microorganisms (including endospores) by interfering with the metabolism of protein and reproduction, resulting in cell death. CAS number: 75–21–8 NIOSH REL: <0.1 ppm (<0.18 mg/m 3) TWA, 5 ppm (9 mg/m 3) CEILING, 10-minutes/day; NIOSH considers ethylene oxide to be a potential occupational carcinogen as defined by the OSHA carcinogen policy [29 CFR 1990]. It is a member of the ether family; known as an epoxide. bacteriostatic kills vegetative bacterial cells. The antimicrobial activity of chlorine is due to which of the following? Express your answer using two significant figures. There are 187 different toxic air pollutants regulated by EPA. Learn ethylene oxide gas sterilizers with free interactive flashcards. Which concentration of ethanol is the most effective bactericide? Which of the following pairs of terms is mismatched? Which of the following does NOT achieve sterilization? The following drawing represents the reaction of ethylene oxide with water to give ethylene glycol, a compound used as automobile antifreeze (Figure 1) What mass in grams of ethylene oxide is needed to react with 14 g of water? OSHA's Renewed Mandate for Regulatory Flexibility: In Support of the 1984 Ethylene Oxide Standard. ETO toxicity has been established in a variety of animals. Ethylene oxide is a hazardous air pollutant, also referred to as a toxic air pollutant or air toxic. It is shipped as a liquefied, compressed gas. All of the following factors contribute to hospital-acquired infections EXCEPT. The melting point of ethylene is −169.4 °C [−272.9 °F], and its boiling point is −103.9 °C [−155.0 °F]. Cycle Parameters. 1998. Ethylene Oxide . The family consumed botulism toxin in the canned green beans. Ethylene oxide has a sweet, ether-like odor at air concentrations above 500 ppm. Which of the following substances is used for surgical hand scrubs? Sodium nitrate and sodium nitrite are added to many meat products, such as ham, bacon, hot dogs, and sausage. A small but important use of ethylene oxide is in the sterilization of medical supplies and devices and healthcare products such as bandages. The thermal death time is the time needed to kill all the bacteria in a particular culture at a certain temperature. A vacuum is typically used to force the liquid through the mesh, and then the sterile liquid or gas is collected in a sterile container on the other side. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Learn vocabulary, terms, and more with flashcards, games, and other study tools. During a flood, a community's well water system is contaminated with a pathogenic fungus. It is used primarily to produce other chemicals, including antifreeze. Workers may be harmed from exposure to ethylene oxide. Which of the following disinfectants acts by disrupting the plasma membrane? Ethylene oxide is a flammable, colorless gas used to make other chemicals that are used in making a range of products, including antifreeze, textiles, plastics, detergents and adhesives. It dissolves easily in water.Ethylene oxide is a man-made chemical that is used primarily to make ethylene glycol (a chemical used to make antifreeze and polyester). Ethylene oxide (EtO) is produced in large volumes and is primarily used as an intermediate in the production of several industrial chemicals, the most notable of which is ethylene glycol. Metal fittings containing magnesium, copper or silver should be avoided, since traces of acetylene in ethylene oxide may produce metal acetylides capable of detonating the vapor [MCA SD-38, 1971]. At room temperature, ethylene oxide is a flammable colorless gas with a sweet odor. After 2 minutes, only 106 cells still remained alive. Laboratory experiments were conducted to unravel synthetic routes to form three C 2 H 4 O isomers—acetaldehyde (CH 3 CHO), ethylene oxide (c-C 2 H 4 O), and vinyl alcohol (CH 2 CHOH)—in extraterrestrial ices via electronic energy transfer processes initiated by electrons in the track of MeV ion trajectories. When microbial control methods are used, microbes are destroyed at a constant rate; there is no instantaneous death of all the microbes present. She should have fixed the instrument, borrowed a properly working one, or purchased a new pressure cooker. Ethylene oxide is a flammable, colorless gas used to make other chemicals that are used in making a range of products, including antifreeze, textiles, plastics, detergents and adhesives. 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