Mike Firth wrote:

20 Mule Team Borax is what you are looking for, in the cleaning section of
grocery store.
20 Mule Team is the brand, Borax is the product.

Makes sense. From the original post:
Found the 20 Mule Team info online, and this :
20 Mule Team® is composed of sodium, boron, oxygen, and
water. (The
scientific name for borax is sodium tetraborate
decahydrate.)

Now, sodium is obviously sodium; tetraborate is boron and oxygen; decahydrate is
(ten parts) water. So, sodium-tetraborate-decahydrate IS sodium, boron, oxygen,
and water.

(Makes a good insecticide, too. And relatively harmless to pets.)