Register - Log In


FunTrivia Homepage


  • New Questions

  • Unanswered


  • Post a Question

    • Goto Qn #




    Archives

    Why was green chosen for American paper currency?

    Question #15672. Asked by tjoebigham. (Jan 04 02 10:04 PM)


    Senior Moments

    		The green ink that has been used since 1862 to print U.S. banknotes was invented in 1857 by Thomas Sterry Hunt while he was a professor at McGill University in Montreal. Hunt was the staff analytical chemist of the Canadian Geological Survey and it was during his time in this position that he started becoming familiar with chromium-containing minerals. For the banknote ink he proposed the use of chromium sesquioxide, also known as chromium trioxide.

    The green ink is the reason why so many counterfeiters are unsuccessful at reproducing U.S. currency. This green ink also cannot be destroyed by acid, base or any other agent. The green ink has another very important characteristic: it cannot be copied by photography.
    http://www.chem-inst-can.org/ncw/articles/egreenink.html

    Jan 04 02, 11:04 PM

    Find something useful here? Please help us spread the word about FunTrivia. Recommend this page below!


    Sign up to see all responses!

    Create a Free ID instantly to see all recent responses, post your own follow-ups or questions, and access over 1,000,000 trivia questions!

    Choose a User Name:
    Your Email Address:
    Choose a Password:

    I agree by the terms outlined in FunTrivia's Conditions of Use




    Other Similar Questions & Answers


    When did Martha Washington appear on US paper currency?

    What is a Continental in the history of paper currency?

    What do you call British paper currency?

    Suggested Related FunTrivia Quizzes - 90,000 currently online

    1 Chosen
    This one is all about the last episode of "Buffy the Vampire Slayer", "Chosen". If you have any questions or comments please send me a message AngelWillow4.
    		Buffy:End Of Days/Chosen Difficult
    15 Q
    AngelWillow4
    Jan 19 04
    1179 plays
    2 'The Chosen'
    Here is a quiz on Chaim Potok's 'The Chosen.' Have fun!
    		Potok, Chaim Average
    5 Q
    EvilGenius
    Dec 31 01
    459 plays
    3 The Chosen
    They are known to the world as the Forsaken - but call themselves the Chosen. Do you know which is which?
    		Mixed Wheel of Time Tough
    15 Q
    reedy
    May 11 03
    1929 plays




    "Ask FunTrivia" is for entertainment purposes only, and answers offered are unverified and unchecked by FunTrivia. We cannot guarantee the accuracy or veracity of ANY statement posted. Feel free to post an updated response if you feel that an answer is inadequate or incorrect. Please thoroughly research items where accuracy is important to you using multiple reliable sources. By accessing our website, you agree to be bound by our terms of service.