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difference b/t zinc oxide/zinc sulfide?
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lily
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Thu Sep 01, 2005 9:20 am      Reply with quote
Does anyone know the difference between these two forms of zinc? I know that zinc oxide has sunscreen capabilities- does zinc sulfide/sulfate too?
pumaka
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Thu Sep 01, 2005 9:24 am      Reply with quote
Zinc sulfide is completely different from zinc oxide and:

it's "HARMFUL IF SWALLOWED OR INHALED. CAUSES IRRITATION TO SKIN, EYES AND RESPIRATORY TRACT"

also "Incompatible with strong oxidizing agents"

and it's toxic:
"Eye, skin and mucous membrane irritant"

At high temperatures it evaporates and causes toxic fumes. Im not sure at how high temperature it will do it, but it probably means it's not okay to use in the sun (I wouldn't).

Did you find it in some skincare product??
lily
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Thu Sep 01, 2005 9:32 am      Reply with quote
Sorry I meant zinc SULFATE (not sulfide...). Zinc Sulfate is added to the skinceutical serums and I was just curious. Do you know anything about that (zinc sulfate)?
pumaka
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Thu Sep 01, 2005 9:37 am      Reply with quote
Ok, this is what i found on zinc sulfate:

"It is used to supply zinc in animal feeds, fertilizers, and agricultural sprays; in making lithopone; in coagulation baths for rayon; in electrolyte for zinc plating; as a mordant in dyeing; as a preservative for skins and leather; and in medicine as an astringent and emitic.:

For humans, I found that it's used as a supplement.

If it's in lotion, probably added either as a preservative or a mineral? Im not sure but it doesn't sound like it's anything like zinc oxide.
lily
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Thu Sep 01, 2005 9:41 am      Reply with quote
Interesting...thanks
faith
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Thu Sep 01, 2005 10:24 am      Reply with quote
It is an anti-oxidant. I think it also has anti-inflammatory and healing capabilities.

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