Formula: C 2 H 4 F 2. <]>> Powerful 500 Watt motor. Its vapors are heavier than air and a flame can travel back to the source of leak very easily. IUPAC Standard InChIKey: NPNPZTNLOVBDOC-UHFFFAOYSA-N. CAS Registry Number: 75-37-6. The animals were exposed in 4.6-cu.m stainless steel and glass chambers using a one-pass, flow-through mode of air flow (air flow rate = 1200 L/minute). The main ingredient in Dust-Off is difluoroethane. 0000003973 00000 n On the back label, look for “1,1,1,2-Tetrafluoroethane” or CAS #811-97-2. 0000004771 00000 n & room temp ... UN1030 - class 2 - 1,1-Difluoroethane WGK Germany WGK 1 RTECS KI1410000 Flash Point(F) Not applicable Flash Point(C) Not applicable Documents. 1,1- Difluoroethane are heavier than air and may spread long distances; distant ignition and flash-back are possible. Contact with the liquid can cause frostbite. Come up with at least two "crazy ideas to explain the shape of the graph for difluoroethane BIU EEEE Most people are surprised to learn that children as young as 8 have used canned air to give them a quick, and often deadly, high. This leak can be either a liquid or vapor leak. Synonym: HFC-152a. 0000011830 00000 n Terms 0000004438 00000 n Aerosol Duster, which is commonly referred to as “canned air”, “compressed air”, and “dusting gas”, is used knock dust and dirt loose with a pressurized blast. 9 33 9 0 obj <> endobj Compressed air dusters, also known as canned air, are containers of compressed gases with a straw outlet that can be used to expel the gas forcefully. You can select from two gases air or difluoroethane. less than 150) (IPCC 2001). 0000002561 00000 n 1,1-Difluoroethane; CASRN 75-37-6 . Difluoromethane does not contain chromophores that absorb at wavelengths >290 nm (9) and, therefore, is not expected to be … Probably because TFE is used as a refrigerant for home appliances and car AC units, plus it's a CFC. 0000043028 00000 n How are the graphs of temperature vs. pressure similar for air and difluoroethane? NACRES NA.22. Both HFC-134a and HFC-152a are GHGs. Select Triali: Ar Collect data and make a graph to show the relationship between the pressure and the temperature of the air in o Search G 6. When you take atmospheric air and then physically force it into a smaller volume, the molecules take up less space and the air is compressed. Uses Only The Air You BreatheCanless Air Contains No Difluoroethane, No Hydroflurocarbons. Atmospheric air and compressed air are both made up of: 78% Nitrogen Compressed air is made of the same air you breathe in and out, but that air is compressed into a smaller size and kept under pressure. You will also need to find the line of best fit for air Pressure Temperature o КР P C с T 1 84.02 21.1 2 89.98 3 -- 99.06 4 35.1 102.82 1 5 10442 398 0000010815 00000 n Compressed air dusters, also known as canned air, are containers of compressed gases with a straw outlet that can be used to expel the gas forcefully. Dizziness, loss of inhibitions, inability to make sound decisions, and slurred speech are common results of huffing. How are the graphs of temperature vs. pressure similar for air and difluoroethane? Pressure vs Temperature 105 100 95 Pressure (kPa) 00 BS --10 -20 10 10 20 Temperature C) PE A: 0,3312 +0,001016 When abused, inhaled DFE produces intoxication and loss of muscular coordination. If difluoromethane is released to the environment, it will slowly be broken down in air. An air-filled balloon sinks in air, but floats in carbon dioxide, because carbon dioxide is more dense than air. 0000009867 00000 n 20 10 0 -10 Temperature (C) Pressure Curve: y = 4x + B A : 0.3342 = 0.001016 kPa B: 91.08 = 0.02820 kPa RMSE: 0.05320 kPa. 41 0 obj <>stream 1,1-Difluoroethane is colorless, odorless gas shipped as a liquefied gas under its vapor pressure. This can result in asphyxiation if excessively inhaled. Aerosol duster is used to provide a pressurized blast, knocking loose dust and ... back label, look for “1,1-difluoroethane” or CAS #75-37-6. 3 detachable nozzles + detailing kit. Its vapors are heavier than air and a flame can travel back to the source of leak very easily. but would it react or contaminate the food? The test atmosphere was generated by diluting HCFC-152a vapor with air. It will move into air from soil and water surfaces. On a production line, it’s not unusual to see compressed air lines dropped for this purpose. Metro DataVac ED500P Electric Duster. • Saved 1. It can asphyxiate by the displacement of air. What is an Air Duster? 0000001440 00000 n O C PE Graph Title 10 Configure Vertical Axis 10 Configure Horizontal Axls Score: 0 / 15 3. Companies that manufacture the substance are aware of this potential and add a bittering agent to deter abuse, but it is … mp −117 °C (lit.) You will also need a few gases that are likely to be more solubility driven, I used difluoroethane (the chemical in canned air canisters), butane and carbon dioxide (Other good candidates are methane, acetylene, propane ). The gas is sold by various companies in a myriad of brands and is used for cleaning electronics and computers without damaging them with moisture. 0000001649 00000 n With a relatively low global warming potential (GWP) index of 124 and favorable thermophysical properties, 1,1-difluoroethane has been proposed as an environmentally friendly alternative to R134a. Workplace Exposure Limits No occupational exposure limits have been established for Β Ι Ο E SEE Score: 0/1 2. Though the Opolar electric duster only has a 10 Watt motor it still moves as much air as a can of compressed difluoroethane gas. This contributes to most deaths by inhalant abuse. You can suggest using any equipment or observations that would be available in a typical chemistry classroom BIU % Of Score: 01 startxref 0000015141 00000 n EC Number 200-866-1. IUPAC Standard InChI: InChI=1S/C2H4F2/c1-2 (3)4/h2H,1H3. Reports in 2005 about teens dying after inhaling the chemical difluoroethane from a popular computer-cleaning spray known as Dust-Off called widespread attention to the practice of inhalant abuse. Select Triali: Ar Collect data and make a graph to show the relationship between the pressure and the temperature of the air in o Search G 6. It can asphyxiate by the displacement of air. | 1,1-Difluoroethane (DFE) has been identified in several huffing cases across the country within recent years. 0000003051 00000 n R152a as mobile air conditioning ... as does the refrigerant 1,1-Difluoroethane (R152a), which has also been proposed as an alternative because it has excellent thermodynamic properties (ASHRAE 2005) and a GWP of 120 (i.e. Also known commonly as canned air, compressed air dusters, computer cleaner, gas duster, and other names. Atmospheric air and compressed air are both made up of: 78% Nitrogen Again I chose the ones I did because they are easily available. © 2003-2021 Chegg Inc. All rights reserved. %%EOF Ethane, 1,1-difluoro-. For one, the cooling capacity of R134a is only 60 percent that of R22, so the system condenser has to work overtime to produce the same amount of cooling. Aerosol cans containing 1,1,1,2-tetrafluoroethane, when inverted, become effective freeze sprays. Common Household Products - A Source of Inhalant Abuse. It just takes a few seconds to spin up to full power. 0000029988 00000 n Β Ι Ο EEEE Score: 0/1 3. trailer Hence why these gases … Common Household Products - A Source of Inhalant Abuse. %PDF-1.4 %���� BP G . Both HFC-134a and HFC-152a are GHGs. This leak can be either a liquid or vapor leak. f 1,1-Difluoroethane is a FLAMMABLE GAS and a DANGEROUS FIRE HAZARD. 0000038783 00000 n Duster, also called “canned air”, “compressed air”, and “dusting gas”, is one of those product categories that seems so simple, which leads to many misconceptions. It is not expected to be broken down by sunlight. i am wondering how to keep food (i.e. To investigate DFE toxicokinetics, groups (n = 3) of Sprague-Dawl … It is flammable, and will ignite when concentrated (i.e. 2.28 (vs air) assay ≥98% bp −25 °C (lit.) The inhalation of canned air can cause many negative health effects such as brain damage, seizures, permanent impairment of vital organs, anxiety as well as, hearing loss and even death. CAS Number 75-37-6. 0000000016 00000 n Molecular weight: 66.0500. These dusters are frequently used to clean dust and debris ... (difluoroethane), which has an array of industrial and commercial uses. The aim of this study was to determine the toxicokinetics of inhaled 1,1-difluoroethane (HFC-152a) in humans. Healthy volunteers were exposed to 0, 200 or 1000 ppm 1,1-difluoroethane for 2h at light exercise in an exposure chamber. Dust-Off, a popular brand name of canned air, is a gaseous refrigerant-based propellant cleaner used to remove dust and dirt from computers and electronics. Vapor-phase 1-chloro-1,1-difluoroethane will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals with an estimated half-life of 12.7 years. f Prolonged or repeated exposure can cause drying and cracking of the skin. brown rice) from going bad/rancid because of oils in the food being exposed to the oxygen in the air. 0000012448 00000 n Aerosol duster is used to provide a pressurized blast, knocking loose dust and ... back label, look for “1,1-difluoroethane” or CAS #75-37-6. If you have a home or auto air conditioner designed to work with R22 refrigerant, and the system needs a recharge, a number of issues prevent the direct substitution of R134a. Its gaseous form is denser than air and will displace air in the lungs. Linear Formula CH3CHF2. These dusters are frequently used to clean dust and debris ... (difluoroethane), which has an array of industrial and commercial uses. You can select from two gases air or difluoroethane. f 1,1-Difluoroethane may affect the heart. HFC-152a – Most commonly available duster in consumer retail because it is less expensive than HFC-134a. 0000001261 00000 n Pick one of your crazy ideas from the previous question and suggest a way you could test whether that idea is true. If released to air, a vapor pressure of 2540 mm Hg at 25 deg C indicates 1-chloro-1,1-difluoroethane will exist solely as a vapor in the ambient atmosphere. Contact with the liquid can cause frostbite. xref x�b```f``�b`��@��9n0,�g`��д^�ep #9(f`Pf�cr�z���]F\����� /���ÿfo˂'�W8e��+�3G�)/. Duster, also called “canned air”, “compressed air”, and “dusting gas”, is one of those product categories that seems so simple, which leads to many misconceptions. 0000002028 00000 n Difluoromethane has estimated 20, 100 and 500 year Global Warming Potentials of 1800-2920, 550-889 and 180-276, respectively (4-7). 0000006976 00000 n 0000003938 00000 n How are the graphs of temperature vs. pressure different for air and difluoroethane? Capillary blood, urine and exhaled air were sampled up to 22 h post- … This essentially contains either butane gas or propane gas. 0000042798 00000 n 0000043234 00000 n MDL number MFCD00000449. 0000004195 00000 n 0000038534 00000 n Huffing canned air can cause an immediate rush of euphoria as well as possible hallucinations and delusions. 0 Privacy It is expected to move easily through soil. 0000004694 00000 n This IRIS assessment for 1,1-Difluoroethane consists of hazard identification and dose-response assessment data and provides support for EPA risk management decisions. It is easily ignited. The effects of huffing may also be paralyzing, interfering with a person’s ability to move normally or even move at all. 0000000956 00000 n Reports in 2005 about teens dying after inhaling the chemical difluoroethane from a popular computer-cleaning spray known as Dust-Off called widespread attention to the practice of inhalant abuse. Most of the air dust canisters you’ll find in retail will contain HFC-152a. HFC-134a (tetrafluoroethane) is higher pressure than HFC-152 (difluoroethane). 1611B Tetrafluoroethane and Difluoroethane Panel, Blood - Current Version Analyte Units Analyte Mapping Code LOINC® 1,1-Difluoroethane : mcg/mL : 1DIFLUOROE : 1,1,1,2 … 0000008913 00000 n You will have one set of data for air and one for difluoroethane. in liquid form) and exposed to a spark or flame. Standard canned air poses many dangers, not the least of which is to children. Since 2007, the San Diego County Medical Examiner's Office (SDCMEO) has discovered frequent deaths involving the abuse of the gas 1,1-difluoroethane. How are the graphs of temperature vs. pressure different for air and difluoroethane? I've noticed it's hard to find canned air that's TFE rather than DFE. Β Ι Ο EEEE Score: 0/1 3. One is difluoroethane or 152a, which is found in canisters marketed for computers and electronic equipment, and incidentally, also is known as Freon — the same gas that makes refrigerators and car air conditioners cool. You can change which graph you see by clicking on the axis titles and picking a different column from your data table 1. BP G . 0000039044 00000 n Molecular Weight 66.05. nitrogen or carbon dioxide would certainly be safer than 1,1-Difluoroethane, but dust off in the can is convenient, is denser than air. PubChem Substance ID 24857768. 1,1-Difluoroethane (DFE) is a halogenated hydrocarbon used as a propellant in products designed for dusting electronic equipment and air brush painting. Come up with at least two "crazy ideas to explain the shape of the graph for difluoroethane … When involved in a fire, toxic decomposition fumes … 0000007854 00000 n air. A canister of compressed air and gas is vented through a narrow nozzle, to create a high powered air spray device to force dust and other particles out of small, fragile and/or hard to reach places. 0000003455 00000 n Compressed air is made of the same air you breathe in and out, but that air is compressed into a smaller size and kept under pressure. The abuse of 1,1-difluoroethane as an inhalant has been documented in literature (1–8). 0000005792 00000 n Difluoroethane is only flammable in a fuel/air concentration of 5.1-17.1% by volume, and is heavier than air. The Hydroflurocarbons and Difluoroethane in them can be deadly. 0000005923 00000 n View desktop site, For this section, you will need to pay attention both the graph for air and the graph for difluoroethane. 1,1-Difluoroethane is colorless, odorless gas shipped as a liquefied gas under its vapor pressure. One is difluoroethane or 152a, which is found in canisters marketed for computers and electronic equipment, and incidentally, also is known as Freon — the same gas that makes refrigerators and car air conditioners cool. O C PE Graph Title 10 Configure Vertical Axis 10 Configure Horizontal Axls Score: 0 / 15 3. Despite its flammability, R152a also presents operating pressures and volumetric cooling capacity (VCC) similar to R134a so it can be used in large chillers or in more particular applications like heat pipe finned heat exchangers. 0000001183 00000 n When you take atmospheric air and then physically force it into a smaller volume, the molecules take up less space and the air is compressed. You'll be fine, but it will have lower FPS and you probably won't get as many shots out of the mag. Download the identifier in a file. storage temp. Use the directions above to make a graph of temperature vs. pressure. With increasing emissions of difluoromethane, the general population may be exposed via vapors in the air. It is easily ignited. That’s right, the same types of gases you’ll find in your outdoor grill or your cigar lighter! 4. Β Ι Ο E SEE Score: 0/1 2. This can cause headache, dizziness, lightheadedness and passing out.