Welders: What NOT to do with oxygen and acetylene on the Fourth of July

(original post by KING 5 News) Posted on July 4, 2010 at 10:56 AM

KIRKLAND, Wash. – Homemade fireworks caused an explosion inside a vehicle on Interstate 405 in Kirkland on Saturday.

The Washington State Patrol says a man filled some balloons with welding gas – a combination of oxygen and acetylene gas – which is normally stored in steel cylinders.

They rubbed together, causing static electricity, and exploded. Troopers say the blast blew out the back window of the pickup truck.

They say the man, woman and 3-year-old girl in the vehicle are lucky they were not injured or even killed in the blast.

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