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  1. #1

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    Potassium to sodium equivalent.

    What weight of potassium sulphite would be equivalent to 100 grams of sodium sulphite, anhydrous?

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    125.4 grammes

    Based on Molecular weight of K2SO3 being 158.26, and Na2SO3 being 126
    "Flatter Me, and I May Not Believe You. Criticize Me, and I May Not like You. Ignore Me, and I May Not Forgive You. Encourage Me, and I Will Not Forget You."

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    Quote Originally Posted by Aurum View Post
    125.4 grammes

    Based on Molecular weight of K2SO3 being 158.26, and Na2SO3 being 126
    Thanks, do you or anyone else know how much is soluable in a litre of water?

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    The Merck index says "Potassium Sulfite is soluble in 3.5 parts of water", Though doesn't say if thats the anhydrous or the hydrate.

    If you take that as Weight for weight,Thats a 28.5% solution . (or 285g/Litre)

    So I would say 250g / litre should go together OK (And keeps the sums easier if you're making a stock solution for using in other stuff)

    It also says that its Cathartic and Diuretic, so wash your hands afterwards before eating, unless you want to be fixing prints in the bathroom, sitting on a porcelain seat
    Last edited by Aurum; 09-13-2008 at 01:51 PM. Click to view previous post history. Reason: Health and Safety
    "Flatter Me, and I May Not Believe You. Criticize Me, and I May Not like You. Ignore Me, and I May Not Forgive You. Encourage Me, and I Will Not Forget You."



 

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