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A complete guide of loading TDI onboard a chemical tanker

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Toluene Diisocyanate TDI is the short form for the toluene Di isocyanate. Loading, carrying, and discharging this cargo is not a child's play. And there is a reason that I say this. TDI reacts with moisture and water. It comes under cyanide group of cargoes and is highly toxic. It can ingest through the skin. And not the physical contact but even its vapors can ingest through the skin. And after all these, TDI may require heating as its melting point is high. So many dangerous elements in one cargo and that's why it is important to handle it carefully. Handling TDI cargo But in spite of being so dangerous, there are hardly any cargo-specific guidelines for carrying this cargo on ships. There are some extensive guidelines for handling TDI ashore but not for carrying onboard ships. So I am hoping this guide can fill that gap.  Let's begin our voyage to carry TDI on board a chemical tanker.  Let's embark on a journey from loading and discharging a cargo of TDI. Receiving Voyage orders On receiving voyage orders to carry TDI onboard, the first thing to check is if we can carry this. By that I mean if the ship is designed to carry th...

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Comments (10)

  • Chief mate June 28, 2016
    Nice article! Also to include that an exothermic reaction occurs when tdi reacts with neutralizer(ipa and nh3 mixture) resultant is a foam like substance. To avoid the additional cost of portable thermal oil heaters, a good operator will suggest u to load this cargo besides a heated cargo so that due to adjacent heat u can maintain its temperature!
    1
    Rajeev Jassal June 28, 2016
    Good points. Thanks for contributing.
  • Subhasis December 1, 2016
    As always, your articles are very concise and helpful. Can you please name the antidote for this cargo? Also in general where to find the antidotes for any specific cargo when we receive orders , for eg:- Para Xylene.
    1
    Chem master June 2, 2017
    Look Chris code of the cargo. There you 'll see which antidote
  • Jitendar Kumar August 13, 2018
    So nice blog,sir can you write on tank cleaning I;e polar jeet how and what all things should keep in mind b4 start cleaning by tank cleaning machine. Thanks in advance
    0
  • Payal Agrawal August 13, 2018
    Thanks for the write-up. It`s really a good read and also looks promising market. I went through a toluene diisocyanate market report at valuemarketresearch.com that evaluated the market across various segments. A deep dive into it might be profitable.
    0
  • Vladimir Chief Mate May 4, 2019
    Good day Rajeev, could you please advise where I can find information regarding ballasting cargo tanks after carrying Undetectable Toxic cargoes, In our company this procedures followed like a rule but what is the publication they are refer to? Thanks a lot
    0
  • Capt. Sinharoy December 18, 2019
    Point missed...After loading the pump side discharge line to be blanked and Toluene to be filled from the manifold and bleeding at the pumpstack. Prior arrival this toulene require to be drained.
    0
  • Mamerto JimenezJr March 15, 2021
    You are God-given gift Captain Rajeev, your unselfish sharing to us seafarers worldwide is unforgettable. Thank you so much. God Bless your family.
    0
  • vivek bhardwaj July 26, 2021
    HI capt Rajeev , could you please advise the entry regarding cleaning of tank with pce is normal as we do with code E OR pre wash entry to be made
    0
Capt Rajeev Jassal

About Capt Rajeev Jassal

Capt. Rajeev Jassal has sailed for over 24 years mainly on crude oil, product and chemical tankers. He holds MBA in shipping & Logistics degree from London. He has done extensive research on quantitatively measuring Safety culture onboard and safety climate ashore which he believes is the most important element for safer shipping.

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