A 40-μl drop of barium chloride and hydrogen peroxide solution is suspended in a flowing-air sampling stream.
One hundred and fifty milliliter of distilled water was then added to each flask followed by one drop of the indicator Barium diphenylamine sulfate.
After 10 minutes of RF irradiation, sub-micron sized powder of barium titanate, which is heated to 900°C, is dropped from a furnace into the water and the RF-irradiation is continued for an additional five minutes.
His breathing trouble, I suspected, was caused by intermittent aspiration of barium, food or whatever else.
Only a few tons of barium are produced each year.
A third test, a double-contrast barium enema, requires a more thorough bowel cleansing, followed by administration of barium and then air into the bowel, which is then examined by X-ray.
It was just the color of barium sulphate, and had a little lace bunched at the throat".
For example, if a solution of barium nitrate, Ba(NO3 2, is added to a solution of sodium sulfate, Na2SO4, a precipitation of barium sulfate, BaSO4, occurs.
When the mineral does not contain much barium, a certain quantity of barium salt is added in order to carry away the radium.
Moreover, she said, the pattern of barium contamination follows the pattern of natural tooth growth — something that would be very unlikely to happen by chance.
