VAPORS ARE HEAVIER THAN AIR AND MAY TRAVEL CONSIDERABLE DISTANCE TO ASOURCE OF IGNITION & FLASH BACK. ... CLOSED CONTAINERS MAY RUPTUREVIOLENTLY WHEN HEATED. [Fire Protection Guide to Hazardous Materials. 12ed. Quincy, MA: <strong>National</strong> Fire Protection Association, 1997.49-136]**PEER REVIEWED**EXPLOSIVE LIMITS & POTENTIAL:FORMS EXPLOSIVE MIXT WITH AIR. [Fire Protection Guide to HazardousMaterials. 12 ed. Quincy, MA: <strong>National</strong> Fire Protection Association, 1997.49-136]**QC REVIEWED**FORMS /EXPLOSIVE VAPOR/ WHEN EXPOSED TO HEAT OR FLAME. [Sax, N.I.Dangerous Properties <strong>of</strong> Industrial Materials. 6th ed. New York, NY: VanNostrand Reinhold, 1984.2728]**PEER REVIEWED**LOWER 3.6% & UPPER 33% [NIOSH. NIOSH Pocket Guide to Chemical Hazards.DHHS (NIOSH) Publication No. 97-140. Washington, D.C. U.S. GovernmentPrinting Office, 1997.330]**PEER REVIEWED**HAZARDOUS REACTIVITIES & INCOMPATIBILITIES:CAN REACT VIGOROUSLY WITH OXIDIZING MATERIALS. [Sax, N.I. DangerousProperties <strong>of</strong> Industrial Materials. 6th ed. New York, NY: Van NostrandReinhold, 1984.2728]**PEER REVIEWED**IT LOSES HYDROGEN CHLORIDE (HCL) ON TREATMENT WITH STRONG ALKALIS @ HIGHTEMP. [IARC. Monographs on <strong>the</strong> Evaluation <strong>of</strong> <strong>the</strong> Carcinogenic Risk <strong>of</strong>Chemicals to Man. Geneva: World Health Organization, International Agencyfor Research on Cancer, 1972-PRESENT. (Multivolume work).V19 378(1979)]**PEER REVIEWED**COPPER, OXIDIZERS, ALUMINUM, PEROXIDES, IRON, STEEL. [NOTE: POLYMERIZES INAIR, SUNLIGHT, OR HEAT UNLESS STABILIZED BY INHIBITORS SUCH AS PHENOL.ATTACKS IRON & STEEL IN PRESENCE OF MOISTURE.][NIOSH. NIOSH PocketGuide to Chemical Hazards. DHHS (NIOSH) Publication No. 97-140.Washington, D.C. U.S. Government Printing Office, 1997.330]**PEERREVIEWED**Reacts with aluminum, aluminum alloys, or copper. [Fire Protection Guideto Hazardous Materials. 12 ed. Quincy, MA: <strong>National</strong> Fire ProtectionAssociation, 1997. 49-136]**QC REVIEWED**An explosion in a valve in a liquid monomer line was ascribed to traces <strong>of</strong>oxides <strong>of</strong> nitrogen remaining after <strong>the</strong> valve had been passivated bytreatment with nitric acid. [Bre<strong>the</strong>rick, L. Handbook <strong>of</strong> Reactive ChemicalHazards. 4th ed. Boston, MA: Butterworth-Heinemann Ltd., 1990244]**PEERREVIEWED**Vinyl chloride tends to self-polymerise explosively if peroxidation occurs... . [Bre<strong>the</strong>rick, L. Handbook <strong>of</strong> Reactive Chemical Hazards. 4th ed.Boston, MA: Butterworth-Heinemann Ltd., 1990244]**PEER REVIEWED**HAZARDOUS DECOMPOSITION:WHEN HEATED TO DECOMP, IT EMITS HIGHLY TOXIC FUMES OF /HYDROGEN CHLORIDE/./SRP: AND POSSIBLY PHOSGENE/ [Lewis, R.J. Sax's Dangerous Properties <strong>of</strong>Industrial Materials. 9th ed. Volumes 1-3. New York, NY: Van NostrandReinhold, 1996.3378]**PEER REVIEWED**
Vinyl chloride/ decomposes on burning producing toxic and corrosive fumes(hydrogen chloride and phosgene). [International Labour Office.Encyclopaedia <strong>of</strong> Occupational Health and Safety. 4th edition, Volumes 1-41998. Geneva, Switzerland: International Labour Office,1998.104.263]**PEER REVIEWED**HAZARDOUS POLYMERIZATION:Polymerization occurs if heated in sunlight or presence <strong>of</strong> air; reactionis exo<strong>the</strong>rmic. [Environment Canada; Tech Info for Problem Spills: VinylChloride (Draft) p.1 (1983)]**PEER REVIEWED**POLYMERIZED IN PRESENCE OF CATALYST [Budavari, S. (ed.). The Merck Index -Encyclopedia <strong>of</strong> Chemicals, Drugs and Biologicals. Rahway, NJ: Merck andCo., Inc., 1989.1572]**PEER REVIEWED**Prolonged exposure <strong>of</strong> cylinders or tank cars to heat or fire may cause <strong>the</strong>material to polymerize with possible container rupture. [Association <strong>of</strong>American Railroads. Emergency Handling <strong>of</strong> Hazardous Materials in SurfaceTransportation. Washington, DC: Association <strong>of</strong> American Railroads, Bureau<strong>of</strong> Explosives, 1994.1109]**PEER REVIEWED**... Tends to self-polymerize explosively if peroxidation occurs, andseveral industrial explosions have been recorded. [Bre<strong>the</strong>rick, L. Handbook<strong>of</strong> Reactive Chemical Hazards. 4th ed. Boston, MA: Butterworth-HeinemannLtd., 1990244]**PEER REVIEWED**/Vinyl chloride/ will polymerize readily due to heating & under <strong>the</strong>influence <strong>of</strong> air, light, & on contact with a catalyst, strongoxidizing agents & metals such as copper & aluminum, with fire orexplosion hazard. [International Labour Office. Encyclopaedia <strong>of</strong>Occupational Health and Safety. 4th edition, Volumes 1-4 1998. Geneva,Switzerland: International Labour Office, 1998.104.263]**PEER REVIEWED**PRIOR HISTORY OF ACCIDENTS:After a train derailment in Canada on Mar 10, 1980, in a blizzard in which2 <strong>of</strong> 12 boxcars were found to be leaking and large quantities <strong>of</strong> vinylchloride were spilled in <strong>the</strong> snow, a max <strong>of</strong> 10 ppm was found ingroundwater at <strong>the</strong> center <strong>of</strong> <strong>the</strong> spill site. Levels dropped below <strong>the</strong>detection limit <strong>of</strong> 0.02 ppm 10 weeks after <strong>the</strong> spill. [Charlton J et al;p.245-67 in Hazard Assessment <strong>of</strong> Chemicals Vol 2; Saxena J ed(1983)]**PEER REVIEWED**Travelling from Belgium to <strong>the</strong> BUNA works in Schkopau, ten <strong>of</strong> eighteentank wagons filled with vinyl chloride (VC) derailed on <strong>the</strong>Magdeburg-Halle railway line just outside Schonebeck station. One wagonexploded & 4 o<strong>the</strong>rs went up in flames. Buildings & trees ingardens located in <strong>the</strong> immediate vicinity <strong>of</strong> <strong>the</strong> track caught fire &burned. 4 owners <strong>of</strong> garden plots suffered burns. A total <strong>of</strong> 28 peoplereceived inpatient treatment in a nearby hospital, ano<strong>the</strong>r 268 people weretreated as outpatients. The typical symptoms <strong>of</strong> fume poisoning such asheadache, nausea, irritations <strong>of</strong> respiratory tract & eyes were <strong>the</strong>primarily diagnosed problems. The vegetation was damaged by flue gases& developing HCl causing fire & caustic burns. Fire brigades &special task forces succeeded to control <strong>the</strong> looming danger <strong>of</strong> health& environmental hazards by cooling <strong>the</strong> burning wagons & pumping<strong>the</strong> liquid gases from <strong>the</strong> tank wagons. Vinyl chloride which was releasedover several days was measured in residential areas to be 0.06-8 ml/m3