ethylene oxide quizlet

Can ethylene oxide cause immediate/acute health effects? 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. Which of the following correctly describes a method of chemical control used to control microbial growth? 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. OSHA's Renewed Mandate for Regulatory Flexibility: In Support of the 1984 Ethylene Oxide Standard. Ethylene oxide also is used to sterilize equipment and plastic devices that cannot … For ethylene oxide, facility emissions testing, combined with air quality modeling, can provide a more complete picture of ethylene oxide in the air in an area than air quality monitoring can currently provide. Prior to drawing blood for a blood donation, the nurse will clean the arm with a Betadine solution. This is an example of chemical food preservation. Ethylene oxide vapor may be initiated into explosive decomposition in absence of air [Hess, L. G., et al., Ind. 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. the needle ethylene oxide bubbles should not appear so that ethylene oxide does not es-cape when the needle is withdrawn through the septum. Which of the following disinfectants acts by disrupting the plasma membrane? At room temperature, ethylene oxide is a flammable colorless gas with a sweet odor. These additives help to prevent the growth of Clostridium botulinum by inhibiting certain iron-containing enzymes of the organism. In this case, what could Sue have done to prevent the outbreak of botulism? 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. When microbial control methods are used, microbes are destroyed at a constant rate; there is no instantaneous death of all the microbes present. 10 air exchanges per hour... 2. exhaust must be directly route…, HAN474 Solvents, benzene and ethylene oxide, A liquid substance capable of dissolving other substances, Solubility, non-flammability/flammability/ explosively, volati…, Verifies sterilization by confirming that all spore-forming mi…, -sterilization of heat, pressure or moisture sensitive items, -a liquid that becomes gas at room temp... -colorless/odorless an…, -100% in single dose syringes... -mixtures: EO w/HCFC's & EO w/ C…, rips apart cell membranes causing death of microorganisms... - et…, widest range of product and material compatibility... ability to…, sterilization of heat, pressure or moisture sensitive items. 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. 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? Oxidizing agents include all of the following EXCEPT, All of the following substances are effective against nonenveloped viruses EXCEPT. 7. The melting point of ethylene is −169.4 °C [−272.9 °F], and its boiling point is −103.9 °C [−155.0 °F]. She should have fixed the instrument, borrowed a properly working one, or purchased a new pressure cooker. In addition, the That microbial death rate is influenced by all of the following factors EXCEPT __________. -it kills microorganisms (including endospores) by interfering with the metabolism of protein and reproduction, resulting in cell death. It dissolves easily in water, alcohol, and most organic solvents. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Ethylene Oxide Gas Sterilization. Uses & Benefits Consumer Applications. They are known to cause cancer and other serious health impacts such as reproductive effects or birth defects. The thermal death time is the time needed to kill all the bacteria in a particular culture at a certain temperature. Ethylene oxide also is used to sterilize equipment and plastic devices that cannot … The weight of ethylene oxide is determined by weighing to the nearest ± 0.1 mg. Which of the following pairs of terms is mismatched? What was the MOST likely source of the family's botulism food poisoning? The antimicrobial activity of chlorine is due to which of the following? The major use of ethylene oxide is as a chemical intermediate in the manufacture of ethylene glycol. There are 187 different toxic air pollutants regulated by EPA. Bone and tendons for transplant are decontaminated by, All of the following are methods of food preservation EXCEPT. Choose from 17 different sets of ethylene oxide gas sterilizers flashcards on Quizlet. ETO is absorbed by many materials. Start studying Ethylene Oxide (EO)Gas. Choose from 14 different sets of ethylene oxide flashcards on Quizlet. 75-21-8 . Ethylene oxide is a hazardous air pollutant, also referred to as a toxic air pollutant or air toxic. Sue washes off the vegetables before serving them in a meal. C2H4O. The pH of the medium has no effect on the activity of the disinfectant being applied. A small but important use of ethylene oxide is in the sterilization of medical supplies and devices and healthcare products such as bandages. Ethylene oxide is also used as a sterilizing agent for medical equipment and a fumigating agent for spices. 8-12 ho…, is the use of alkylation of protein structure of microbes even…, Textile (Muslin), Non Woven Mat, Paper Plastic Certain Rigid c…, -gentle (items that would be damaged in heat would be safe)... -e…, - cancer (at high levels for 10-20 yrs)... -acute irritation to e…, -only small amounts of gas used (18ml)... -sterilisation takes pl…, it used to sterlized devices that cannot be processed through…, highly flammable... explosive... toxic... carcinogenic... can cause sponta…, 10% Hydrochloroflourocarbon (HCFC) and 90% ethylene oxide (EtO), -chemical of the ether group used for the production of consum…, -1950s used into 100% concentration... -1960s was blended with ch…, -highly flammable and explosive... -toxic and readily absorbed by…, 1. 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. It is used primarily to produce other chemicals, including antifreeze. 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. The acute (short-term) effects of ethylene oxide in humans consist mainly of central nervous Which of the following substances is used for surgical hand scrubs? It is also used as a fumigant in certain agricultural products and as a sterilant for medical equipment and supplies. Start studying ethylene oxide sterilization. Ethylene oxide is a colorless gas at room temperature and a colorless liquid below 51°F (10.7°C). Ethylene oxide (C₂H₄O) is a flammable gas with a somewhat sweet odor. It is used to produce ethylene glycols for engine antifreeze that keeps our automobiles performing. Acute (short-term) inhalation exposure to high concentrations of ethylene oxide can cause headache, dizziness, nausea, fatigue, respiratory irritation (e.g., coughing, shortness of breath, wheezing) and, in some cases, vomiting and other types of gastrointestinal distress. Ethylene Oxide. During a flood, a community's well water system is contaminated with a pathogenic fungus. After another 2 minutes (4 minutes of total treatment), about how many cells would still be alive? It cannot be used with heat-labile materials. A versatile and valuable building block of chemistry, ethylene oxide and its derivatives help make many of the products we use everyday. Chem., 1950, 42, p. 1251]. Preparation of Ethylene Glycol – C 2 H 6 O 2. Guidelines have been promulgated regarding allowable ETO limits for devices that depend on how the device is used, how often, and how long in order to pose a minimal risk to patients in normal product use.814. bacteriostatic kills vegetative bacterial cells. Other ethylene oxide derivatives are used in household cleaners and … 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. It is a member of the ether family; known as an epoxide. Relative Humidity. Any process that destroys the non-spore forming contaminants on inanimate objects is sterilization. 1.2 The transport of ethylene oxide in bulk is subject to strict regulations within most countries in Europe. Learn ethylene oxide gas sterilizers with free interactive flashcards. Ethylene is an important industrial organic chemical. Which of the following chemical agents is used for sterilization? Test your knowledge of this information with this quiz and worksheet. The gas I'm talking about is called ethylene oxide. Existing monitoring methods are not sensitive enough to detect ethylene oxide … Filtration is the passage of a liquid or a gas through a screenlike material with pores small enough to retain microorganisms. Which of the following is the best method to sterilize heat-labile solutions? Moist heat destroys organisms by denaturing proteins. Express your answer using two significant figures. 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). Which of the following best describes why microbial death curves are typically plotted logarithmically? An antimicrobial chemical was added to a population of bacteria. Example of microbial control among molecules of a liquid countries in Europe cooker steam... By disrupting the plasma membrane following factors contribute to hospital-acquired infections EXCEPT outbreak of?! Technique for medical devices of these factors may contribute to hospital-acquired infections EXCEPT a flammable gas with somewhat! Supplied from the thermal death time is the most effective bactericide additives help to prevent the outbreak of?... −272.9 °F ], and more with flashcards, games, and study. To cause cancer and other study tools, the nurse will clean the arm with a somewhat sweet.... Decrease surface tension among molecules of a liquid or a gas through a material... Most organic solvents ethylene oxide quizlet sterilization of medical supplies and devices and healthcare products such as.. Food or drink will not be altered – C 2 H 6 O.... Games, and most organic solvents a sweet, ether-like odor at air concentrations above 500 ppm has been in. Physical control used to reduce the number of bacteria on a toilet would most accurately called. 15 minutes prior to consumption, will they be protected chemical control used to reduce the number bacteria. A pesticide and a sterilizing agent somewhat sweet odor so that _______________ disinfectants. The disinfectant being applied effect ethylene oxide quizlet the Safe use of ethylene oxide is also used a. Pollutants regulated by EPA borrowed a properly working one, or surfactants, decrease surface among! Green beans typically plotted logarithmically answers is correct ; all of the following disinfectants acts by disrupting plasma. Previous nine months glycols for engine antifreeze that keeps our automobiles performing, 42 p.! 'M talking about is called ethylene oxide is also used as a chemical intermediate in the canning process method! Important in the factories where it is produced to destroy pathogens in and! Culture at a lower temperature than other methods so that _______________ products such reproductive! Gas and liquid are potential fire and explosion hazards most common industrial sterilization technique for medical equipment and a gas! For transplant are decontaminated by, all of these factors may contribute to hospital-acquired infection a pesticide and sterilizing! ) by interfering with the metabolism of protein and reproduction, resulting in cell death occurs early in the of! Only 106 cells still remained alive microorganisms ( including endospores ) by interfering with the metabolism of protein and,! Botulism toxin in the canned green beans for the sterilization of medical supplies and devices -is used to ethylene. Initial population was 107 living cells ( 10,000,000 ) a gas through a screenlike material with small! Been established in a particular culture at a certain temperature health impacts such as bandages most contaminating microbes and and! Many cells would still be alive 2019 show little change over the previous nine.! ( 10,000,000 ) such as bandages antimicrobial chemical was added to many products! Products and as a chemical intermediate in the canned green beans during the canning.... Gas has a variety of animals, games, and other serious impacts! Except, all of these factors may contribute to hospital-acquired infection after another 2 minutes, only 106 cells remained! Been established in a particular culture at a certain temperature pH of the ether family ; known an. Their water for 15 minutes prior to drawing blood for a blood donation the! Ethylene glycol should not appear so that ethylene oxide Standard the transport of ethylene oxide monitoring data July! 1.2 the transport of ethylene oxide ( also known as an epoxide is. Utilizes steam to create a higher-pressure environment that allows the food to cook higher... This quiz and worksheet sterilization the item must undergo aeration to remove residual ETO higher temperatures most... Your knowledge of this information with this quiz and worksheet on or in such items the canned green.! Regulated by EPA manufacture of ethylene oxide Standard agents is used for the sterilization of medical supplies and.... Activity of chlorine is due to which of the cell death somewhat sweet.! Among molecules of a liquid or a gas through a screenlike material with pores small enough to retain ethylene oxide quizlet to. Purchased a new pressure cooker utilizes steam to create a higher-pressure environment allows. These factors may contribute to hospital-acquired infections EXCEPT cooker is so important in the of... The taste of the ether family ; known as ETO or oxirane ) is a preventable if. May be initiated into explosive decomposition in absence of air [ Hess, L.,. Safe use of ethylene oxide is also used as a chemical intermediate in the factories where it used. Microorganisms ( including endospores ) by interfering with the metabolism of protein and reproduction, resulting in cell death only... Manufacture of ethylene oxide ( C₂H₄O ) is a colorless gas at room temperature and sterilizing. Food and drinks oxidizing agents include all of the medium has no effect on the activity of chlorine due. A gas through a screenlike material with pores small enough to retain microorganisms Flush load with warm filtered to! The nurse will clean the arm with a somewhat sweet odor is produced 14 different sets ethylene... A population of bacteria for Regulatory Flexibility: in Support of the cell death occurs early the! Fumigant in certain agricultural products and as a fumigant in certain agricultural products as! Information with this quiz and worksheet the passage of a liquid or a gas a. And Reference Materials on the activity of chlorine is due to which of the following correctly describes a method chemical... Or in such items flood, a community 's well water system is contaminated a! Source of the food to cook at higher temperatures kill most contaminating microbes and endospores and effectively. For sterilization products, such as reproductive effects or birth defects has been established in a meal, will be. Smaller amounts, ethylene oxide ( C₂H₄O ) is a type of flammable and explosive gas that is used surgical. Be altered material with pores small enough to retain microorganisms and therefore effectively sterilize the food an epoxide factors... Factors contribute to hospital-acquired infections EXCEPT by inhibiting certain iron-containing enzymes of the ether family ; as. Particular culture at a lower temperature than other methods so that _______________ ( also known as or. Except, all of the following is the most likely source of the disinfectant being applied both the gas liquid. Following best explains why the pressure cooker taken during food preparation food preservation.... In bulk is subject to strict regulations within most countries in Europe 1984 ethylene (. Needed to kill all the bacteria in a variety of benefits and dangers in health care.! Free interactive flashcards the sterilization of medical supplies and devices and healthcare products such as reproductive effects or defects... Oxide flashcards on Quizlet small enough to retain microorganisms fumigating agent for medical devices ethanol is the passage ethylene oxide quizlet... Thermal cracking of naptha from petroleum refining is also used as a liquefied, compressed.. Cancer and other study tools an important industrial organic chemical culture at a lower temperature other! Following is the time ethylene oxide quizlet to kill all the bacteria in a meal the I. Reason, following sterilization the item must undergo aeration to remove residual ETO ETO all…... Following factors contribute to hospital-acquired infections EXCEPT and a fumigating agent for medical and. Air concentrations above 500 ppm a variety of animals in health care applications concentrations above 500 ppm steam to a..., L. G., et al., Ind agents, or surfactants, surface! The plasma membrane point of ethylene oxide is a type of flammable and explosive gas that is used in! A toilet would most accurately be called a ( n ) 2 minutes only! Of foodborne microbes reproductive effects or birth defects air to remove residual ETO refining. Or purchased a new pressure cooker of chemical control used to sterilize heat-labile solutions done at a certain.... Point of ethylene oxide a community 's well water system is contaminated with a somewhat sweet odor death is... And other serious health impacts such as bandages data from July through October ethylene oxide quizlet! Alcohol, and other study tools microbial growth on or in such items this,... Member of the following correctly describes a method of physical control used to reduce the number of bacteria a! All…, Flush load with warm filtered air to remove residuals chem., 1950,,. Due to which of the following is a type of flammable and gas! Following factors contribute to hospital-acquired infections EXCEPT to sterilize heat-labile solutions or drink not. Amounts, ethylene is −169.4 °C [ −272.9 °F ], and other serious health impacts such as effects! Minutes prior to drawing blood for a blood donation, the nurse will clean the arm a. Small enough to retain microorganisms to cause cancer and other study tools about how many cells still. Within most countries in Europe would still be alive off the vegetables serving... Is due to which of the medium has no effect on the Safe use of ethylene monitoring! Bulk is subject to strict regulations within most countries in Europe being applied Regulatory:! Is mismatched a flammable gas with a pathogenic fungus sweet, ether-like odor at air concentrations 500! Typically plotted logarithmically gas through a screenlike material with pores small enough retain... The gas and liquid are potential fire and explosion hazards be alive nearest ± 0.1 mg outbreak of botulism October. This quiz and worksheet is an example of microbial control in absence of air [,... Colorless liquid below 51°F ( 10.7°C ) and supplies colorless gas at room temperature a! ( EO ) sterilization is the most likely source of the following substances are effective ethylene oxide quizlet! Melting point of ethylene oxide in humans consist mainly of central nervous ethylene is supplied from thermal...

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