Borax (sodium tetraborate) and baking soda (sodium bicarbonate) aren't the same things. They're both salts and popular as "green" household cleaning agents, but borax has a pH of 9.5, compared to baking soda's pH of 8. This makes borax considerably more alkaline than baking soda. If you are looking for high quality, high purity and cost-effective Boron powder, or if you require the latest price of Boron powder, please feel free to email contact mis-asia.