1. Imakhala ndi hygrosophicity yamphamvu. Moto {{}} sunagonja nthawi zambiri amagwiritsa ntchito migodi ya magnesium monga magnesium oxide, yomwe ili ndi malo okwanira moto. Komabe, vuto limodzi la michere ya michere ndi hygroscopicity yawo yamphamvu, yomwe imawapangitsa kuti azikonda kuyamwa chinyezi pamlengalenga. Pamene makulidwe osamba amwatse chinyezi chachikulu, ntchito yake imakhudzidwa, zomwe zingachepetse kutengera moto ndi magetsi a chinsinsi
2. Zina mwa chingwe sizisindikizidwa mwamphamvu. Chinyezi kapena madzi adzalowa chinsinsi chosanjikiza chingwe kapena chingwe chosanjikiza, kenako ndikuyang'ana chinsinsi chilichonse, potero kuwononga mphamvu yonseyo.
