Udushya, ubuhanga buhebuje no kwizerwa ni byo ndangagaciro z'ingenzi z'ubucuruzi bwacu. Aya mahame muri iki gihe ni yo shingiro ry'intsinzi yacu nk'ikigo mpuzamahanga gikorera ku giciro cyo hejuru ku ruganda Igiciro cya 60% Min Na2s Yellow Flakes Sodium Sulphide Flake Red, Turagutumiye wowe n'ikigo cyawe gutera imbere hamwe natwe no gusangira ahazaza heza cyane ku isoko ry'isi yose.
Udushya, ubuhanga n'ubwizerwe ni byo by'ingenzi mu bucuruzi bwacu. Aya mahame muri iki gihe ni yo shingiro ry'intsinzi yacu nk'ikigo mpuzamahanga gikorera mu bucuruzi buciriritse, ibicuruzwa byacu byose byoherezwa ku bakiriya bo mu Bwongereza, mu Budage, mu Bufaransa, muri Esipanye, muri Amerika, muri Kanada, muri Irani, muri Iraki, mu Burasirazuba bwo Hagati na Afurika. Ibicuruzwa byacu byakiriwe neza n'abakiriya bacu kubera ubwiza bwo hejuru, ibiciro bishimishije ndetse n'imiterere myiza. Twifuza kugirana umubano w'ubucuruzi n'abakiriya bose no kuzana amabara meza mu buzima bwacu bwose.













Uburyo bwo kuvura no kugabanya ubwinshi bwa sodium sulfide:
Sukuramo umuyoboro wa 200 ml wa Solute B mu icupa rya 500 mL. Shyiramo umuyoboro wa 40 mL wa solute carbonate, 80 mL wa zinc sulfate, na 25 mL wa ethanol. Sukura amazi kugeza aho agaragara hanyuma uvange neza.
Hindura uruvange, jugunya mL 10 za mbere za filtrate, hanyuma ushyiremo pipette mL 100 za filtrate mu icupa rya mL 500. Sodium Sulfide.