borax powder
Technical term for powdered borax (sodium borate). Used in chemistry, cleaning, and traditional crafts.
Borax powder is sometimes used in glass manufacturing.
This detergent contains borax powder.
ホウ砂 is a more common term for borax in everyday contexts, while 硼酸末 is a technical term emphasizing the powdered form.
Compound of 硼酸 (boric acid) and 末 (powder). The kanji 硼 is used specifically for boron compounds.