Barium

If barium is so poisonous then why are we able to swallow barium meal when taking an X-ray of our stomachs?

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Re: Barium

[quote="meawinner"]If barium is so poisonous then why are we able to swallow barium meal when taking an X-ray of our stomachs?[/quote]

Because when you swallow a "barium meal" when getting an X-Ray of your stomach, the barium is in the form of it's sulfate salt. (BaSO4) Barium Sulfate is completely insoluble and will not disassociate into the Ba+2 and (SO4)-2 ions. If it can't dissolve in water, it's unable to get into your blood stream and internal organs and cause damage.

There is also radiation damage which is minor .

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