Ko te hua he ma, he mea porohita porohita me te taonga o te kore-paitini, te hongi, te kore e rewa i te wai me te waihano.He rite te rahi o te matūriki, he maeneene te mata, he teitei te kaha miihini, he kaha te kaha o te whakauru makuku me te kore e wehea te poi i muri i te tango i te wai.
Ko te konumohe mo te hauwai peroxide he maha nga hongere capillary me te waahi mata nui, ka taea te whakamahi hei adsorbent, desiccant me te whakakorikori.I te wa ano, ka whakatauhia ano kia rite ki te polarity o te matū adsorbed.He hononga kaha mo te wai, te waikura, te waikawa acetic, te kawakawa, me etahi atu. Ko te alumina whakahohe he momo moroiti-wai te whakamaroke hohonu me te adsorbent mo te adsorbing ngota polar.