Quote:
Originally posted by Panky
Barium powder could've been used. Metallic powders...
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Not metallic powder. Baryum, the plaster white stuff you drink or that they give you in enema form is a suspension of baryum sulphate in water. Something like well mixed plaster. BTW, gypsum plaster is calcium suphate. So "baryum" IS a fancy form of plaster. They use baryum sulphate because baryum being a heavy metal, it blocks off radiation much better than calcium.
Baryum is toxic, but baryum sulphate being virtually insoluble in water or in the gastric acids (hydrochloric acid), it never gets into the body, goes right through the tube.