A large explosion happened in the contractor amenities area. The explosion was thought to be caused by an explosive mixture of air and hydrogen which existed in the pipes. The force of the explosions in the pipes has then caused consequential failures of fittings and joints at B and C storage tanks. This released hydrogen into the storage shelter which subsequently ignited.

Hydrogen escaped when a venting valve was opened for the inspection of a cap. The escaped hydrogen caught fire, resulting in the death of 4 people, injuries to others 3 and damages to the plant.

An explosion and fire occurred at a chemical plant applying silicone coatings. The blast occurred when some polymethyl hydrogen siloxane was accidentally fed into a reactor, together with the correct feedstock, allyl glycidyl ether. The two epoxides reacted, overheated and hydrogen burst out of a ruptured pipe into the building, where it mixed with air and exploded. The 5 workers were caught in the resulting fire. According to the Company, the police believe that human error is to blame. Although both chemicals were labelled, they were stored in drums of the same colour.

An accident occurred prior to the performance of a hydrogen-oxygen balloon demonstration, seriously injuring the demonstrator, who suffered painful second-degree burns to his right forearm and had to be taken to the hospital. The paramedics feared that grave respiratory damage (due to flame inhalation) might have occurred.To prepare for the demonstration, the demonstrator had transported 15 balloons (pre-filled with a hydrogen-oxygen gas mixture) in a large, black polyethylene garbage bag. During the demonstration set-up he opened the bag to remove a single balloon for stringing and floating.

The Unit for Catalysed Removal of Carbon Dioxide (Catacarb) leaked and hydrogen fire at the hydrocracking unit. The fire lasted approximately 10 minutes. Localized corrosion caused a pipe to fail and dumped the Catacarb from the unit and then hydrogen was released and ignited. The unit was shutdown, resulting in loss of the supply of Catacarb.

Piping failed because of corrosion and a release of hydrogen occurred with an explosion. The fire lasted approximately 10 minutes, resulting in the shutdown of the hydrogen unit. Noise of the explosion was heard offsite for well over a mile. Some minor damage offsite.

A serious chemical accident occurred at chemical industry producing olephins and phenols. The accident resulted in injuries to several workers and extensive damage to the plant, as well as minor damage to nearby residential property. Damage to the facility was estimated at $101 million and major transportation routes were closed for several hours. The U.S.

On September 1, 1992, an explosion in this facility occurred due to an accidental release of hydrogen at the Institute of Energy Conversion, University of Delaware, US. Hydrogen gas was used in research reactors to deposit amorphous silicon thin-films. The explosion occurred during the replacement of a hydrogen cylinder which was stored in a ventilated gas cabinet equipped with sprinklers. This and other hazardous gases flowed to an enclosed reactor in an adjacent room.

At about 3:15 p.m. on Dec. 3 2003, personnel in the Expended Core Facility at the Naval Reactors Facility heard a loud, unexpected noise. Upon investigation, personnel found an irradiated material storage container fell from its normal submerged storage location in the water pool to the pool floor, and that the lid had come off.The lid was found about 10 feet away from the container on the bottom of the water pool. No nuclear fuel was involved.According to a press release, a team of technical experts determined the most likely cause was a hydrogen gas explosion within the container.

A hydrogen explosion happened at a chemical plant in Cheshire, UK where 18 tons of hydrogen gas went up. The firefighters were on the scene tackling the fire quickly and efficiently.