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According to a press release from Jindal's office, three cars were leaking as of late Sunday. One is leaking lubricant oil while a second is leaking Dodecanol, a tasteless, colorless alcohol that can cause mild skin irritation. The third, however, is carrying a highly corrosive substance called caustic soda, or lye.
Two other cars containing a highly toxic, flammable, and carcinogenic substance called vinyl chloride monomer have damage to their exteriors but no signs yet of apparent leaks, the release added. Jindal said these cars cause authorities "the most concern" but they are working to mitigate the problem by damming off the area.
Vinyl chloride is the organochloride with the formula H2C=CHCl. It is also called vinyl chloride monomer, VCM or chloroethene. This colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride (PVC).[1] About 13 billion kilograms are produced annually. Vinyl chloride is a gas with a sweet odor. It is highly toxic, flammable, and carcinogenic.
OSHA lists vinyl chloride as a Class IA Flammable Liquid, with an National Fire Protection Association Flammability Rating of 4. Because of its low boiling point, liquid VCM will undergo flash evaporation (i.e., autorefrigerate) upon its release to atmospheric pressure. The portion vaporized will form a dense cloud (more than twice as heavy as the surrounding air).
The risk of subsequent explosion or fire is significant. According to OSHA, the flash point of vinyl chloride is -78 °C (-108 °F). Its flammable limits in air are: lower 3.6 volume% and upper 33.0 volume%. Fire may release toxic hydrogen chloride (HCl) and carbon monoxide (CO).
Flammability 4
Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily (e.g., acetylene, diethylzinc). Includes pyrophoric substances. Flash point below 23°C (73°F)
Originally posted by goou111
reply to post by snarky412
St. Landry Parish? Where is that?
The railroad company doesn't know what caused the derailment. Espinoza said the railroad ties were renewed in 2011 and the track was inspected about three hours before the accident.
Originally posted by Ameilia
reply to post by goou111
Okay what is it with train derailments. This is like the 5th or 6th one in 6 weeks or something. I've never heard about so many derailments so close together in my life.
Someone on ATS should make a thread about all the recent train derailments. Weird stuff.
Originally posted by thesmokingman
Originally posted by Ameilia
reply to post by goou111
Okay what is it with train derailments. This is like the 5th or 6th one in 6 weeks or something. I've never heard about so many derailments so close together in my life.
Someone on ATS should make a thread about all the recent train derailments. Weird stuff.
It actually happens more than you would think. Looks like an average of 33 derailments per year.
www.tsb.gc.ca...
ETA: this is just in Canada alone!!edit on 5-8-2013 by thesmokingman because: (no reason given)
Originally posted by Ameilia
Okay what is it with train derailments. This is like the 5th or 6th one in 6 weeks or something. I've never heard about so many derailments so close together in my life.
In the US, derailments have dropped dramatically since 1980 from over 3,000 annually (1980)
to 1,000 or so in 1986, to about 500 in 2010
Jindal said these cars cause authorities "the most concern" but they are working to mitigate the problem by damming off the area.
Originally posted by samuel1990
This is like the 6th train accident in less than a month! What is going on?!