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Thread: cyanuric acid vs Isocyanuric acid

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    cyanuric acid vs Isocyanuric acid

    Can anyone tell me the difference between these two acids? The Isocyanuric acid is sold at Menards. It's cheaper than Leslie's acid.
    Their MSDS shows:
    1,3,5 Triazine-2,4,6 (1H, 3H, 5H)-trione
    (Isocyanuric acid)(CAS #108-80-5)

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    Join Date
    Mar 2007
    San Rafael, CA USA

    Re: cyanuric acid vs Isocyanuric acid

    That's just the IUPAC name for cyanuric acid so there's no difference between them. Get whatever is cheaper so long as the concentration is the same. Just be a little careful in that some brands that came from China have been found to not have pure CYA in them, but it's been a while since I've heard about such problems.
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    Re: cyanuric acid vs Isocyanuric acid

    If the product from Menards is 100 % and for pools, it's ok to use. Isocyanuric acid is just another name for cyanuric acid.

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    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: cyanuric acid vs Isocyanuric acid

    Other names for Cyanuric acid are:

    1,3,5-Triazinetriol; s-Triazinetriol; 1,3,5-Triazine-2,4,6(1H,3H,5H)-trione; s-Triazinetrione; Tricarbimide; Isocyanuric acid; Seudocyanuric acid (Thank you wikipedia)

    I think they do that so you can't see that you're getting the exact same chemical for less somewhere else.
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