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I am not a chemist, I develop software. I'm hoping for a general explanation I can understand in order to assist me with a project I'm working on.

Customers viewing a product online such as peroxide see 97% (dry wt.), wet with 25% water.

What does this mean? What would you expect the product to be in the form of? A powder, liquid/gel, solid in water? Any specific type of container?

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I believe there is no general rule. In your case (assuming you mean this) it is a solid. materials can have 25% and even more water and still be solids.

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  • $\begingroup$ Yes, that is the type I was referring to. What type of packaging would this be shipped in? What I hope to do is create a web graphic that would incorporate the information, as well as any other useful shipping information. $\endgroup$ – Half_Duplex Sep 12 '13 at 20:07
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In this particular case it means that the product (a peroxide, explosive!) has been phlegmatized with 25 % water. The product is a solid, of which 25 % are water. The dry solid has been analyzed for peroxide content, and 97 % of the dry solid is benzoyl peroxide.

You would think it came in a plastic container because glass is basic and may leach ions that could catalyze decomposition of the product over time. But that is just a hunch.

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