Mawu oyambira oyatsira (ⅴ)

15. Aluminium (al) : Aluminium ndi deoxidizer mu chitsulo. Kuphatikiza pang'ono aluminiyamu pang'ono kuti zitsulo zithetse kukula kwa tirigu ndikusintha mphamvu, monga 08al chitsulo chomwe chimagwiritsidwa ntchito pojambula ma sheet. Aluminiyamu imakhalanso ndi oxidation kukana ndi kukana kutukuza. Akaphatikizidwa ndi chromium ndi silicon, aluminiyamu amatha kukonza kwambiri kutentha kwambiri komwe sikugwiritsa ntchito magwiridwe antchito ndi kutentha kwa kutentha kwa chitsulo. Zovuta za aluminium ndikuti zimakhudza kugwira ntchito kotentha, kuwonjeza magwiridwe antchito ndikuchepetsa magwiridwe a chitsulo.

16. Boron (b) : Kuwonjezera ndalama zochulukitsa kwa ma boron kuti zithandizire kukhala kovuta, kuyendetsa galimoto motentha, ndi mphamvu.

17. Nitrogeni (n) : Nitrogen imatha kusintha mphamvu, kuuma kwa kutentha, komanso kutopa kwa chitsulo, kukuchulukirachulukira.

18. Dziko lapansi loipali : Zinthu zanthawi zonsezi zimanenanso za 15 Lantanide ndi nambala ya atomiki ya 57-71 munthawi yazinthu. Zinthu zonsezi ndi zitsulo zonse, koma oxiss awo ndi ofanana ndi "dziko lapansi", motero amatchedwa kuti ndi zapamwamba kwambiri. Kuphatikiza zina zapadziko lapansi kuti zisinthe zimasintha kapangidwe kake, morphology, kugawa, ndi katundu wophatikizika, monga kulimba mtima, komanso kugwira ntchito mozizira. Kuonjezera zinthu zachilengedwe padziko lapansi pazinthu zolimira kumatha kusintha kuvala.