e/Activated alumina

Information
has gloss	eng: Activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 square metres/g. The compound is used as a desiccant (to keep things dry by absorbing water from the air) and as a filter of fluoride, arsenic and selenium in drinking water. It is made of aluminium oxide (alumina; Al2O3), the same chemical substance as sapphire and rubies (but without the impurities that give those gems their color). It has a very high surface-area-to-weight ratio. That means it has a lot of very small pores, almost like tunnels, that run throughout it.
lexicalization	eng: Activated alumina
instance of	(noun) a substance that promotes drying (e.g., calcium oxide absorbs water and is used to remove moisture) desiccant, drying agent, siccative, drier

Meaning
Portuguese
has gloss	por: Alumina ativada é produzida a partir do hidróxido de alumínio por de hidroxilização, resultando em um material feito quase que totalmente de óxido de alumínio (alumina; Al2O3), o mesmo material que safiras e rubis (mas sem as impurezas que dão a estas gemas suas cores).
lexicalization	por: Alumina ativada