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Product Description

10-0250 10 g, 10-0250 100 g, 10-0250 1 lb

To Make antifog 

Take 10 grams of Benzotriazole and mix into 500 Ml of hot distilled water. Add 15 to 30 ml to a liter of developer working solution. Always start with the smallest amount, add more if needed.


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  1. THE safest GO-TO cold tone solution 5 Star Review

    Posted by on 14th Sep 2017

    Don't bother ordering your Photo Formulary supplies from another site. You will not receive the same, highest quality chemical's from another site/store.
    Using the Benzotriazole in paper developer's, you will get the richest, deep blue/black tones you desire.
    ****Remember, like many chemicals, you must heat up the distilled water to at least 125F for BZT to dissolve in the solution****

  2. mixing 2 Star Review

    Posted by on 27th Jan 2016

    Did not dissolve in distilled water. still in bottom of jar.

    Photographers :
    The distilled water might need to be heated to get this to mix into solution.

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