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Calamitous explosion in Tianjin

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  • citanon
    replied
    http://finance.sina.cn/2015-08-20/de...ml?vt=4&pos=17

    Latest reports in Chinese media indicate that many workers and drivers employed by the company had no hazardous or explosive materials training.

    The original site permit had a maximum allowance for 10 tons of sodium cyanide. Officials now estimate that 200 to 700. Tons of sodium cyanide may have been on site.

    Also there is some confusion about whether the company had its own firefighting company on site or were relying on near by firefighting stations for support. Both state owned hazardous materials companies in the same port have their own hazardous materials firefighting outfits.
    Last edited by citanon; 19 Aug 15,, 21:37.

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  • citanon
    replied
    clearest yet video from an expat who was on a rooftop initially overlooking the explosion site.

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  • citanon
    replied
    Originally posted by DonBelt View Post
    [ATTACH]40007[/ATTACH] It's called a placard. They are in use all over the world on buildings, trucks, trains, storage facilities. Saved many a firefighter by giving them a heads up as to what is stored in the facility/truck/railroad car that they are dealing with. Also pre-planning for a facility like this is invaluable. Knowing what the hazard is, you may decide to forego fighting the fire and concentrate on evacuation.
    Don, it was noted in the Chinese media that this company was cited last year for inadequate labeling on some stored chemicals.

    Also, I absolutely agree on the pre-planning. It seemed this was also missing from first hand accounts.

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  • DonBelt
    replied
    Click image for larger version

Name:	10-1.jpg
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ID:	1467436 It's called a placard. They are in use all over the world on buildings, trucks, trains, storage facilities. Saved many a firefighter by giving them a heads up as to what is stored in the facility/truck/railroad car that they are dealing with. Also pre-planning for a facility like this is invaluable. Knowing what the hazard is, you may decide to forego fighting the fire and concentrate on evacuation.

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  • Oracle
    replied
    Originally posted by citanon View Post
    BTW, one of the other more "minor" accidents happening in China today. Report is in Mandarin but video is self explanatory:

    http://video.sina.com.cn/news/spj/to...814/#249735499

    You call this minor, here the Government would be torn apart. Why are sinkholes such an issue in China? Don't the authorities (geologists) do proper soil checks?

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  • Oracle
    replied
    RIP. It's scary. What is the usual process of compensation and rehabilitation for the victims?

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  • citanon
    replied
    BTW, one of the other more "minor" accidents happening in China today. Report is in Mandarin but video is self explanatory:

    http://video.sina.com.cn/news/spj/to...814/#249735499

    Last edited by citanon; 14 Aug 15,, 20:03.

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  • citanon
    replied
    Originally posted by citanon View Post
    http://mobile.reuters.com/article/to...0QH2B220150814

    according to Reuters the warehouse that exploded was storing ammonium nitrate, potassium nitrate, and calcium carbide at the time.
    There are reports in the Chinese media now that injured firefighters said they were unaware that the containers at the blast site were storing water sensitive chemicals. The explosions happened after they sprayed large amounts of water onto the containers.

    Original source in Chinese:
    http://yd.sina.cn/article/xinzhi/top...anfzhnh2924486

    Of the 3 chemicals rumored to have been at the storage site, calcium carbide decomposes in water to form acetylene. That would form a potent explosive mixture together with ammonium nitrate and potassium nitrate. The explosions happened just 44 min after reports of the initial fire.



    Last edited by citanon; 14 Aug 15,, 20:00.

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  • Officer of Engineers
    replied
    A safey release valve and barrier that can vent the gas outside without being exposed to an inginition source.

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  • citanon
    replied
    sir, I am unfamiliar with firewalls that don't reside in my PC. how are things like this normally stored safely?

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  • Officer of Engineers
    replied
    Obviously, no firewall ($10,000 safety precaution)

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  • citanon
    replied
    http://mobile.reuters.com/article/to...0QH2B220150814

    according to Reuters the warehouse that exploded was storing ammonium nitrate, potassium nitrate, and calcium carbide at the time.

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  • citanon
    replied
    2nd explosion was >21 tons TNT from ground tremors. looks to me like some sort of fuel air effect was involved.

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  • TopHatter
    replied
    Dear god...that looks like something from a post-apocalyptic movie.

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  • citanon
    replied
    New video from a guy who was way too close to the blast zone. What a nightmare.

    http://www.liveleak.com/view?i=775_1439442869

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