Does Borax contain boron?

Yes, borax is sodium borate. You've overstated the case a bit. Fermi found that the graphite to be used for his first reactor was absorbing unreasonably high numbers of neutrons. Only after discussions with the producer did it occur to a team including Szilard and Fermi that the culprit was boron. read more

So you know, boron is the impurity in graphite which makes the construction of a graphite-moderated nuclear reactor impossible.” —————— Yes, borax is sodium borate. You’ve overstated the case a bit. Fermi found that the graphite to be used for his first reactor was absorbing unreasonably high numbers of neutrons. read more

Borax (sodium tetraborate hexahydrate or sodium borate) is a naturally-occurring mineral composed of sodium, boron, oxygen and water. It has been used as a remedy for over 4000 years. Most commercially-produced borax is mined from deposits produced by the repeated evaporation of seasonal lakes. read more

Boron does show potential stress on the kidney as they have to work very hard to process the Boron. Boron shows to potentially effect hormone levels, increasing testosterone as well asestrogen. This could prove concerning in the use of baby powders for diaper rash. read more