Kuonekwa kwenhema yesarufaikristaro nhema ine maburi, uye pamusoro pekristaro pane mwero wakasiyana wechiedza (kuchinja kwesimba). Mhinduro yemvura imvura nhema, uye nhema yesarufa inofanira kunyungudutswa ne sodium sulfide solution.
Kristaro nhema yeSulfur idhayi yakagadzirwa kubva kumhuri yedhayi yesulfur. Inowanzoshandiswa muindasitiri yemachira pakudhaya machira edonje sezvo ichipa ruvara rutema rwakadzama. Kristaro nhema yeSulfide inozivikanwa nekukasika kwayo kwemavara, zvinoreva kuti haizonyangarike kunyangwe mushure mekugezwa kakawanda kana kupiswa nezuva. Inodhurawo uye inowanikwa zvakanyanya pamusika.
Maitiro ekugadzira sarufa nhema anobva pa2,4-dinitrochlorobenzene, iyo inonyungudutswa mumvura ine alkaline kuti iwane 2,4-dinitrophenol sodium salt, iyo inozowedzerwa mu sodium polysulfide solution kuti iparadzwe. Mushure mekuoxidation, kusefa, chigadzirwa chapera chinoomeswa.
Sulphur black inonyanya kushandiswa pakudhaya donje, hemp, viscose nemachira ayo akasanganiswa. Mazhinji emachira edenim (matema) anozivikanwa munyika nekune dzimwe nyika akagadzirwa neshinda yewarp nhema yakarukwa neshinda chena. Sulphur black ine ma disulfide bonds akawanda mushure mekuderedzwa ne sodium sulfide, uye zviri nyore kuoxidized kuderedza simba remachira akadhayiwa, kureva kuti, kuputsika. Kuti udzivise kukuvara kuputsika, unofanirwa kutarisisa zvinhu izvi:
1. Dzora huwandu hwesarufa nhema. Kana sarufa nhema yakawanda, mukana wekukuvara kunokanganisa.
2、Shamba zvakanaka kuti uderedze ruvara rwezvinhu zviri kuyerera pamutoro.
3. Shandisa zvinowedzerwa zveTaikoo Oil kudzivirira kupwanyika.
4. Kukwesha nemvura yakachena usati wadhaya. Shinda yakasanganiswa nemvura yekuedza mushure mekudhaya ine mwero wekushomeka kuri nani pane lye.
5. Omesai nenguva mushure mekudhaya kuti muderedze huwandu hwezvinhu zvinobatsira kudzivirira kupwanyika kweganda nekuda kwekuwanda kwemvura.
Nguva yekutumira: Gumiguru-31-2023