Chemistry

• Large explosion at a fireworks factory (2003)
• Explosion caused due to aged deterioration of equipment at an initiative explosive factory (2002)
• Fire due to accumulated material in an exhaust gas duct at a finishing section of a synthetic rubber plant (2000)
• Fire caused due to a flange loosened from vibrations at a synthetic rubber plant (2000)
• Explosion due to inadequate storage of explosives in the temporary storage house (2000)
• Explosion and fire of highly-concentrated hydroxylamine at a re-distillation unit (2000)
• Fire of hexene-1 in the piping of a hydrocarbon vapor recovery unit (VRU) at a tank lorry filling station (2000)
• Explosion caused due to unexpected contaminant during neutralization treatment in a waste water tank (1999)
• Leakage from a crack of a heat exchanger due to corrosion and abrasion at a manufacturing plant of crude copper phthalocyanine blue (1999)
• Leakage and fire caused due to an abnormal reaction from contamination of a heat medium to raw materials in a heat exchanger type reactor having a corroded part at an acrolein manufacturing plant (1998)
• Explosion caused due to air contamination during subdivision work of trimethylindium (1998)
• Explosion and fire caused due to mixing of waste acids of different concentrations in a waste acid tank. (1998)
• Rupture and fire of a measuring tank caused due to an incompatible reaction from transport of a different chemical to a tank containing a chemical (1998)
• Leakage of toluene caused due to incorrect disconnection of a coupling during draining of toluene for cleaning (1998)
• Explosion of ethanol vapor caused due to insufficient exhaust during drying operation of vitamin tablets at a pharmaceutical factory (1998)
• Leakage and fire of hydrogen from a mounting flange of a safety valve in a reactor at a succinic acid manufacturing plant (1998)
• Explosion of coke oven gas during cleaning at a desulfurization regeneration tower of a coke oven gas refining (1998)
• Fire of xylene remaining in solid piperazine separated in a centrifuge (1998)
• Fire of ethanol caused due to air intake in the ejector of a treatment drum at a surfactant manufacturing plant (1998)
• Explosion caused due to generation of a combustible gas-air mixture at a naphthalene oxidation reaction plant (1998)
• Explosion of acrylic acid in the drum can in the heating cabinet for dissolution (1998)
• Damage to a tank roof caused due to sticking of a breather valve during transfer of raw material (1998)
• Explosion of silicone products dissolved in an organic solvent during subdivision work (1997)
• Explosion in the polycondensation reaction of benzyl chloride (1997)
• Ignition of rubber remained in the reactor during cleaning at a polybutadiene manufacturing plant (1997)
• Explosion of a machine for melting and volume reduction of polystyrene foam (1997)
• Explosion and fire caused due to gas leakage from high-pressure ethylene piping at an ethanol manufacturing plant (1997)
• Explosion during charging operation of raw material powder into a reactor containing dioxane (1997)
• Explosion of an air heater of a boiler at an agricultural chemical manufacturing plant (1997)
• Explosion of an intermediate concentration tank at an insecticide manufacturing plant (1996)
• Explosion due to an incompatible reaction in a nitration workroom for TNT (1996)
• Explosion and fire induced due to incompatible reactions of residual contaminant at an alkylaluminum manufacturing plant (1996)
• Leakage and fire damage caused due to stress corrosion cracking of a heat exchanger at a glycerin concentration plant (1996)
• Explosion due to sparks of an electric grinder during repairing a wastewater treatment vessel with neutralization (1996)
• Explosion caused due to a catalytic effect of contaminant in the reactor at a resin intermediate manufacturing plant (1996)
• Fire of a high-pressure thermal gravimeter at a university (1996)
• Explosion and fire at a manufacturing plant for manufacturing a RIM raw material liquid. (1996)
• Explosion in the workroom to fill explosives with press (1996)
• Fire of leaked hydrogen due to misuse of a gasket at a solvent manufacturing plant (1996)
• Explosion of benzene used as washing oil during cleaning a fuel oil tank (1996)
• Explosion in a storage tank caused due to decomposition of a polymerization catalyst (1995)
• Explosion of a methanol recovery residue at an organic peroxide manufacturing plant (1995)
• Explosion and fire of tetrahydrofuran during air-pressure transfer to a tank from a drum can (1995)
• Ignition of leaked gas caused due to a runaway reaction during a power failure at an expanded polystyrene manufacturing plant (1995)
• Explosion caused due to a change of a draw-off method of coolant in a jacket of a reactor from air pressure to steam pressure at a medical intermediate manufacturing plant (1995)
• Fire caused due to back flow of dimethylamine during repairing work of piping from a reactor to a scrubber (1995)
• Explosion during taking out used desiccant from a drum can (1995)
• Rupture, explosion and fire caused due to pressure rise during cleaning operation for a distillation kettle (1995)
• Explosion during cleaning by brushing a tank for dangerous materials at a paint manufacturing factory (1995)
• Fire caused due to overheat of an electric heater caused from operation error during a turnaround shutdown (1994)
• Explosion and fire at a butadiene cylinder exposed to the sunshine (1994)
• Leakage of varnish for ink after transfer to a fully occupied tank where an alarm lamp lit (1994)
• Explosion and fire caused due to decomposition of an organic peroxide catalyst (1993)
• Fire caused due to an abnormal reaction at a high temperature of waste oil at the bottom of a waste oil tank at styrene recovery facilities (1993)
• Rupture of a drum can caused due to reactions of chemicals with water (1993)
• Explosion of a DMSO recovery drum caused due to foreign material contamination at an epoxy resin manufacturing plant (1993)
• Leakage of fuel oil from a tank and an outflow to a canal caused due to an inadequate automatic control system (1993)
• Leakage of heat medium oil from a varnish manufacturing plant caused due to an error in judgment and a mistake in operation at startup (1992)
• Spouting of hot cleaning liquid from a manhole opened for inspection at an acrylamide purifying column (1992)
• Sudden fire due to contamination of unexpected impurities during neutralization work at a waste water storage tank (1992)
• Explosion at a fireworks manufacturing factory (1992)
• Leakage and explosion of hydrogen caused by using SUS304 in a chloride atmosphere and poor welding at a hydrogenated reduction plant. (1992)
• Explosion due to a runaway reaction from operation by misunderstanding of the reaction progress during preparation of organic peroxide (1992)
• Fire of methanol leaked from piping removed accidentally due to welding sparks (1991)
• Explosion of acetylene gas accumulated in a drum can of calcium carbide on taking out (1991)
• Eruption due to a runaway reaction from incorrect charging quantity in the preparation of acrylic resin adhesive (1991)
• Fire during hot melting work for a valve blocked with hydrocarbons (1991)
• Explosion caused due to friction on manufacturing an air bag inflator (1991)
• Explosion and fire caused due to accumulation of methyl hydroperoxide at a methanol rectification column of a surfactant manufacturing plant (1991)
• Leakage and fire of gas from lower piping of a heating furnace for start-up at an ammonia manufacturing plant (1991)
• Explosion and fire caused due to insufficient agitation of excessive charging quantity at a multi-purpose drug manufacturing reactor (1991)
• Explosion of an organic peroxide catalyst during circulation before use at a crosslinked polyethylene manufacturing plant (1990)
• Fire occurred due to dispersion of molten nitrate caused by high-pressure steam entering into a molten nitrate vessel of a phthalic anhydride reactor after opening a steam generation tube (1990)
• Run-away reaction occurred during vacuum distillation of epichlorohydrin waste liquid including dimethylsulfoxide (1990)
• Dust explosion and fire during feeding bisphenol A to a dissolution drum (1990)
• Explosion in an intermediate tank during turnaround shutdown maintenance at a dimethylformamide manufacturing plant (1990)
• Rupture of a reactor caused by an abnormal reaction due to lowered cooling ability of the reactor on manufacturing a pharmaceutical intermediate (1990)
• Rupture of metal drum cans containing extracted reaction liquid at a manufacturing plant of phenolic resin (1990)
• Explosion and fire of benzoyl peroxide (BPO) (1990)
• Fire in an electrical graphitization furnace for carbon fiber production (1990)
• Explosion of hydrogen peroxide due to the change of a feeding line to a vessel at a surfactant manufacturing plant (1989)
• Explosion and fire at an outdoor tank to start storage before completion of attached facilities (1989)
• Explosion of a dryer caused due to unexpected reaction of residual alkali (1989)
• Leakage of fuel oil caused due to damage to a flexible hose at a fuel oil tank piping (1989)
• Explosion caused due to an overflow of aqueous hydrogen peroxide at a peracetic acid manufacturing plant (1988)
• Explosion and fire caused due to a change from sodium salt to potassium salt at a di-cumyl hydroperoxide manufacturing plant (1988)
• Rupture of a chlorosulfonic acid tank due to pressurizing (1988)
• Partial leakage of hydrochloric acid gas from an absorber due to an earthquake (1987)
• Fire of ethylene oxide adducts at a manufacturing plant not in operation (1987)
• Rupture of a solvent recovery drum caused by an abnormal reaction due to a temperature rise at a sugar ester manufacturing plant (1987)
• Fire caused due to a thunderbolt that struck piping at a vinyl chloride monomer manufacturing plant (1987)
• Explosion in dead space of a reactor at a naphthalene oxidation plant (1987)
• Explosion of an o-nitrochlorobenzene melting drum caused due to a temperature rise caused by reflux piping blockage (1986)
• White fumes generated from a tolylene diisocyanate (TDI) solution tank due to moisture contamination at a epichlorohydrin manufacturer (1986)
• Dust explosion of purified anthracene powder in a weighing hopper (1986)
• Fire caused due to electrostatic charge in the filtration process of a medicine intermediate (1985)
• Explosion of the co-existing system of epichlorohydrin and dimethylsulfoxide in epoxy resin manufacturing at the waste treating plant (1985)
• Leakage of toxic methyl isocyanate stored in a tank at a chemical plant (1984)
• Explosion of a germane gas cylinder (1984)
• Explosion caused due to local heating of a drum can including insecticide (chlorpyrifosmethyl) (1984)
• Explosion at draw-off piping to remove hydrocarbons from liquid oxygen during changing filters at an air liquefaction separator (1984)
• Fire of powder resin due to increased powder by remodeling to improve efficiency at an ABS resin manufacturing plant (1984)
• Explosion and fire caused due to a combustible gas-air mixture generated in a toluene drain tank sealed with nitrogen at a hydroquinone manufacturing plant (1984)
• Rupture of high-pressure air piping on the discharge of an air compressor (1983)
• Hydrogen chloride gas leakage from a reactor due to the pressure rise from an abnormal reaction at a chloroform manufacturing plant (1983)
• Explosion of flammable gas released from expanded polystyrene beads stored in a warehouse, and a fire of the warehouse (1982)
• Big explosion caused due to runaway reaction of raw materials left after a small explosion due to a power failure at an AS resin plant (1982)
• Explosion of an acrylic acid monomer in a drum can during heating due to direct blowing of steam (1981)
• Fire caused due to mismanagement of welding at a warehouse storing poisonous substances such as sodium cyanide (1980)
• Explosion during preparation for manufacturing pesticide caused due to stopping of cooling water from a failure position setting error at a control valve (1980)
• Explosion of 5- chloro -1,2,3- thiadiazole (5CT) (1980)
• Explosion in the piping caused due to a back flow of ammonia in the amination of 5-chloro-1,2,3-thiadiazole (1980)
• Fire caused by explosion of p-nitrophenol sodium salt due to friction during transfer with a conveyor (1979)
• Explosion and fire caused due to a runaway reaction on start-up of the preparation of an adhesive manufacturing plant (1978)
• Explosion of DMTP caused due to improper temperature control at a manufacturing plant of pesticide intermediates (1977)
• Leakage of toxic substances at a chemical plant (1976)
• Explosion caused due to heat of adsorption of an adsorption tower used to deodorize a methyl acrylate tank (1976)
• Explosion at a reactor caused due to a temperature rise of a recovery process of hydroxylamine sulfate at a pharmaceutical production plant (1974)
• Disaster of Chemical Plant at Flixborough (1974)
• Spouting of high-temperature liquid from the reactor due to a hot spot formed on stopping the agitator (1974)
• Rupture of a vacuum distillation drum for 4-chloro-2-methylaniline caused due to air leakage and misjudgment (1973)
• Leakage and explosion of a vinyl chloride monomer caused due to damage of a valve at distillation column feed piping at a manufacturing plant of vinyl chloride monomers (1973)
• Fire caused due to stopping an agitator of a liquid seal-type reactor during a temporary shutdown procedure at an ethylidene norbornene plant (1973)
• Explosion of 2-chloropyridine-N-oxide left as a distillation residue (1973)
• Explosion due to delayed start of agitation at the start-up of reaction of o-nitrochlorobenzene (1973)
• Runaway reaction during manufacturing pesticide due to a decomposition reaction of tarry waste. (1973)
• Explosion due to condensation from miss-charge of toluidine into a vessel of diketene (1972)
• Explosion of dinitrosopentamethylenetetramine(DPT) during continuous operation of the rotary valve for measuring DPT caused due to frictional heat because of continuously abnormal condition (1972)
• Fire due to spontaneous polymerization of vinyl acetate during long-term storage (1971)
• Explosion due to excess charge of oxidizer following malfunction of instrument during manufacturing of carboxymethylcellulose (1971)
• Explosion on restarting agitation during the sulfonation reaction of toluene (1970)
• Explosion occurred immediately after automation of a reactor for preparing guanidine nitrate. (1970)
• Explosion caused due to a condensation reaction of benzyl chloride during being left in a vessel (1970)
• Explosion of 5-t-butyl-m-xylene on restarting an agitator during the nitration reaction (1970)
• Spontaneous ignition of p-toluenesulfonyl hydrazone at temporary storage (1970)
• Explosion of ozonide caused due to neglect of a reaction from improper temperature measurement (1969)
• Explosion during transfer of dioxane by compressed air (1969)
• Explosion of acrylic acid under storage in a drum can after partial melting (1969)
• Explosion of the nitroaniline preparation reactor due to error in the quantity of supply of raw materials (1969)
• Explosion caused due to valve operation trouble during an emergency shutdown of a compressor at a vinyl chloride plant (1968)
• Explosion during the final process of nitration for nitrocellulose manufacturing (1968)
• Explosion and fire due to an improper raw material composition during preparation of synthesis of dehydroacetic acid (1967)
• Explosion in a cleaning tank at a lauroyl peroxide manufacturing plant (1967)
• Explosion of azobisisobutyronitrile (AIBN) caused due to overheat from excessive tightening of the gland packing of a drier (1967)
• Explosion caused due to leak of niter as a heating medium in the distillation drum at a phthalic anhydride manufacturing plant (1966)
• Self-ignition of soft urethane foam on restarting operation after maintenance at a depot (1966)
• Burst of a phenolic resin reactor due to abnormal reaction (1965)
• Burst of the reactor due to leaked water into the p-nitrotoluene sulfonic acid reactor (1965)
• Burst of a distillation drum due to abnormal reaction of 2,2'-dinitrodiphenylamine with impurities (1964)
• Explosion of organic peroxide caused from a warehouse fire (1964)
• Explosion due to hypergolic hazards in the intermediate tank of a propylene oxide manufacturing plant (1964)
• Explosion of sodium picramate due to slight stimulation during handling (1964)
• Rupture of the reactor due to a leak of cooling water during sulfonation reaction of nitrobenzene (1963)
• Explosion due to temperature rise from careless handling in the nitrosation reaction (1962)
• Sudden explosion of the combustion gas at a low-temperature liquefaction separation plant (1959)
• Explosion caused due to a leakage of a heat medium (nitrate) through a crack in the reactor at a phthalic anhydride manufacturing plant (1954)
• Leakage and explosion of benzene vapor due to a pressure rise in the reactor where steam for heating could not be completely stopped (1956)
• Explosion and fire caused due to simultaneous addition of the whole quantity of additives at a stretch on redistilling vinyl acetate monomer (1954)
• Explosion of ammonium nitrate caused due to superfluous concentration at an ammonium sulfate recovery process (1952)
• Explosion due to no function of safety equipment in the abnormal reaction during manufacturing phenetidine (1952)
• Explosion at a nitrobenzene distillation column due to the lowering of the degree of vacuum from power failure (1951)
• Explosion of a dangerous material left near during repair work of a reduction reactor (1949)
• Spontaneous ignition of fireworks including potassium chlorate (1943)