Skin Protection : Chemical-protective clothing is recommended because ac rylonitrile liquid and vapor can be dermally absorbed Vapor irritates eyes and nose. Vapors heavier than air. Health Data from Inhalation Exposure Vapor Pressure: 86.25 mm Hg @ 20 deg C Vapor Density: 1.83 (air=1) Evaporation Rate:4.54 (n-Butyl Acetate =1) Viscosity: 0.35 cps @ 20 deg C Acrylonitrile vapor or uninhibited liquid may polymerize explosively, if heated, or exposed to sunlight (ultraviolet light), pressure, peroxides, or other incompatible materials. For acetonitrile: 1 ppm = 1.66 mg/m 3. Acrylonitrile (AN) is an important industrial raw material frequently encountered in the manufacture of ANbutadienestyrene (ABS) and ANstyrene (AS) resins. But other researchers have concluded that acrylonitrile toxicity is not due only to cyanide because of the ineffectiveness of anti-cyanide drugs. OSHA PEL (permissible exposure limit) = 2 ppm (skin) (averaged over an 8-hour (1) The vapor A large amount of AN vapor is dispersed into the atmosphere during manufacture, transportation, use and disposal every year. The pressure drop across the. Monitoring Techniques: The sampling and analysis under this section may be It is an important monomer for the manufacture of useful plastics such as polyacrylonitrile. (1,8) Acrylonitrile has a pungent, onion- or garlic-like odor, with an odor threshold of 47 mg/m 3. The (co)polymerization is conducted while providing a vapor phase over a polymerization mixture Synonyms for acrylonitrile include acrylon, carbacryl, Acrylonitrile is an organic compound with the formula CH2CHCN. 17 %. vapor pressure. AN vapors are toxic and carcinogenic substances. Download Date | 1/6/16 6:56 PM. quality. 897 F. Workplace Exposure Monitoring It readily ignites and can form explosive mixtures with air. (1) Conversion Factors: To convert concentrations in air (at 25 C) from ppm to mg/m 3: mg/m 3 = (ppm) (molecular weight of the compound)/(24.45). Acrylonitrile was first synthesized by the French chemist Charles Moureu (1863 Thermal conductivity of liquid Acrylonitrile Vapor pressure (20 degrees C) 11, 07kPa. ACRYLONITRILEACN CAUTIONARY RESPONSE INFORMATION Common SynonymsWatery liquid Colorless to light yellow Irritating odor Floats on water. Acrylonitrile vapor is heavier than air. 6. The vapor pressure for styrene is 5 mm Hg at 20 C, and its octanol/water partition coefficient (log K ow) is 2.95. Acrylonitrile vapour represents a higher hazard than the combustion products. It is therefore advisable, if the fire cannot be quickly brought under control and the subsequently heated Acrylonitrile leaking out cannot be covered with foam, to let this liquid burn. Acrylonitrile Vapor Monitor (OV-343) Acrylonitrile Vapor Monitor (OV-343) $60.00 Add to cart SKU: 921cfe0708ae Description Additional information Description General ACS Vapor Monitor can be worn as a badge near the breathing zone to measure personal exposure, or placed in a room to measure area concentration. Acrylonitrile is a clear, colorless or slightly yellow liquid that is highly volatile and toxic. In the past, acrylonitrile was also used as a room fumigant and pediculicide (an agent used to destroy lice). Solubility in Water: Percent by weight at 20 C (68 F): 7.35. limited shelf life, expiry date on the label. Vapor Pressure at 20 C (68 F): 83 mm Hg. Molecular Weight 53.1 Boiling Point 171F Freezing Point -116F Vapor Pressure at 20 C (68 F): 83 mm Hg. Acrylonitrile is relatively volatile with a vapor pressure of 13.3 kPa (1.9 psi) at 25C (77F) and a boiling point of 77.3C (171.1F). Water (H2O) has a molecular weight of 18.g/mol. nitric acid, sulfuric acid, chlorosulfonic acid), acetic anhydride, acrolein, acrylonitrile, cellulose, epichlorohydrin, mesityl oxide, beta-propiolactone, vinyl acetate. Acrylonitrile is an explosive, flammable liq uid having a normal boiling point of 77 C and a vapor pressure of 80 mm Hg (20 C). In terms of its molecular structure, it consists of a vinyl group linked to a nitrile. The vapor pressure for acetonitrile is 74 mm Hg at 20 C, and it has an octanol/water partition coefficient (log K ow) of -0.34. build-up of pressure and resulting in an explosion hazard, Innovene adds inhibitor prior to shipment. US3399120A 1968-08-27 Purification of olefinically unsaturated nitriles by water extractive distillation. The vapor of this product can form explosive mixture with air, and the explosion limit (25 ) is 3.05% ~(17.00.5)%(volume). Acrylonitrile is relatively volatile with a vapor pressure of 13.3 kPa (1.9 psi) at 25C (77F) and a boiling point of 77.3C (171.1F). It has a pungent odor of onion or garlic that does not provide Poisonous, flammable vapor is Combustion 6. Acrylonitrile-Butadiene Rubber Acrylonitrile-butadiene rubber Molecular Weight 53.1 Boiling Point 171F Freezing Point -116F Solubility 7% Vapor Pressure 83 mmHg Ionization Potential 10.91 eV Specific Gravity 0.81 Flash Point 30F Upper Solubility in Water: Percent by weight at 20 C (68 F): 7.35. lim. Boiling point 77.3 c. expl. In Acrylonitrile Vapor pressure (20 degrees C) 11, 07kPa. Freezing point -83 ~- 84 . Dogs exposed to 50, 75, and 100 ppm levels for 7 5.5) Exposures at 636 ppm in air for 4 h were fatal to rats. Acrylonitrile vapors are heavier than air and may travel along the ground and Publication Publication Date Title. It readily ignites and can form explosive mixtures with air. When Acrylonitrile catches fire or explodes, water vapour, carbon dioxide, nitrogen oxides and nitrogen are formed, and, if combustion is incomplete carbon monoxide and hydrocyanic acid in addition. In the event of heating and contact with basic substances, hydrocyanic gas can also be formed. Major Uses or Sources Acrylonitrile is produced commercially by propylene ammoxidation, in which propylene, ammonia, and air are reacted by catalyst in a fluidized bed. It has a pungent odor of garlic or onions. 86 mmHg ( 20 C) assay. osti.gov journal article: radiation grafting of acrylonitrile on cellulose from the vapor phase. Prolonged exposure to the vapors or skin contact harmful. Liquid causes local injury to mouth, throat, digestive tract, skin, and eyes. = 1.3888 Solubility (20C) 7.35 wt % ACN in water 3.1 wt % water in ACN METRIC UNITS SI UNITS Critical pressure 34.9 bar 3490 kPa Heat of vaporization 147 kcal/kg 615 kJ/kg Unauthenticated. The process involves feeding the aqueous-acrylontrile vapor stream to a primary condenser maintained at a temperature and pressure so that a substantial amount of the water is condensed and the acrylonitrile is maintained in the vapor The present invention relates to a process for reducing the concentration of acrylontrile in an aqueous-acrylonitrile vapor stream. Specific gravity (water = 1): 0.81 (at 20 deg. C or 68 deg. F); 3. Vapor density (air=1 at boiling point of acrylonitrile): 1.83; If a solution is prepared by dissolving 26.g For purposes of compliance with the requirements of 29 CFR 1910.106, acrylonitrile is classified as a class IB flammable liquid. In stabilized. [Note: Odor can only be detected above the PEL.] Acrylonitrile is a highly poisonous compound used widely in the manufacture of plastics, adhesives and synthetic rubber. Acrylonitrile is a colorless, volatile liquid with a pungent, onion-like odor. Flash point -5 c. Physical Description Colorless to pale-yellow liquid with an unpleasant odor. It has a Henry's Law constant of kh = 6.75 atm when dissolved in water. The vapor of this product can form explosive mixture with air, and the explosion limit (25 ) is 3.05% ~ (17.00.5)% (volume). Refractive index 3888. (Ref. Viscosity (25 deg C) 0.34mPa.s. Vapor pressure 100 torr @ 23 o C Solubility Soluble in isopropanol, ethanol, ether, acetone, and benzene Conversion factor 1 ppm = 2.17 mg/m 3 @ 25 o C III. Vapor pressures of Acrylonitrile above the surface of its solutions in water (at 25C and 40C) are shown in Figure 2.6. Vapour Its vapor pressure at 25 C is P* = 0.14 atm. For example, 7,500 ppm, approximately one-fourth of the (1) Conversion Factors: To convert concentrations in air (at 25C) from ppm to mg/m 3: mg/m 3 = (ppm) (molecular weight of the compound)/(24.45). It is reactive and toxic at low doses. A process for the (co)polymerization of a monomer material, which includes at least an acrylonitrile monomer as an essential component, at a temperature of 80 C. or higher by bulk or solution polymerization while allowing said monomer material to evaporate. US3196085A 1965 US3445347A 1969-05-20 Extractive distillation of acrylonitrile with side stream impurity withdrawal. Re spiratory Protection: Positive-pressure, self-contained breat hing apparatus (SCBA) is recommended in response situations that involve exposure to potentially unsafe levels o f acrylonitrile vapor. For styrene: 1 ppm = 4.26 mg/m 3. A clear colorless liquid with a strong pungent odor. It is a colorless volatile liquid although commercial samples can be yellow due to impurities. 98% (GC) autoignition temp. 152. ACRYLONITRILE: ICSC: 0092: PHYSICAL & CHEMICAL INFORMATION; Physical State; Appearance COLOURLESS OR PALE YELLOW LIQUID WITH PUNGENT ODOUR. Flash point 32F. 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