I-Thiourea
Ukubuka Konke Komkhiqizo
Igama Lekhemikhali: Thiourea
Inombolo ye-CAS: 62-56-6
Ifomula Yamamolekyuli: CH₄N₂S
Isisindo sama-molecule: 76.12 g/mol
Ukubukeka: Impuphu emhlophe noma ama-prill acwebezelayo; ayinaphunga noma inephunga elincane elifana ne-ammonia
Ukuncibilika: Kuncibilika kakhulu emanzini (137 g/L ku-20°C), kuncibilika ku-ethanol, kuncibilika kancane ku-ether kanye ne-acetone
I-Thiourea iyinhlanganisela ebalulekile yesibabule esiphilayo enesakhiwo esifana ne-urea (esithatha indawo ye-athomu ye-oxygen ngesibabule). Ibonisa ukusabela kwamakhemikhali okuhlukile, okwenza kube yinto eluhlaza eguquguqukayo kanye nesengezo kuzo zonke izinkambu zezimboni, zezolimo, kanye nezelebhu. Njengoba inezakhiwo zomzimba ezizinzile kanye nokusabela okulawulwayo, ihlangabezana nezindinganiso zekhwalithi eziqinile zezimo ezahlukahlukene zokusetshenziswa.
Izakhiwo Eziyinhloko Nezinzuzo
| Impahla | Imininingwane | Inzuzo Eyinhloko |
| Indawo Yokuncibilika | 176 - 178°C (kubola ngaphezu kuka-180°C) | Ukuqina kokushisa ngaphakathi kwamazinga okushisa ajwayelekile okucubungula, okugwema ukubola ngaphambi kwesikhathi |
| Inani le-pH (isixazululo samanzi esingu-1%) | 6.0 - 7.5 | Ayithathi hlangothi kuya kwe-asidi encane, iyahambisana nezingxenye eziningi ngaphandle kokubangela ukugqwala noma ukungalingani kwe-pH |
| Ubumsulwa (iminithi) | 99.0% (ibanga lezimboni); 99.5% (ibanga lemithi) | Ukuhlanzeka okuphezulu kunciphisa ukungcola okungathinta ukusebenza komkhiqizo noma kubangele ukusabela okungekuhle |
| Okuqukethwe kwe-Heavy Metal (okuphezulu) | 10 ppm (inani eliphelele le-Pb, i-Cd, i-Hg) | Ihlangabezana nezindinganiso zemvelo nezokuphepha, ifanele ukusetshenziswa kokudla noma imithi |
| I-Hygroscopicity | Iphansi (imunca umswakama omncane kakhulu ekushiseni kwegumbi) | Kulula ukuyigcina nokuyiphatha ngaphandle kokugoqana, okuqinisekisa ikhwalithi ehambisanayo ngokuhamba kwesikhathi |
Izicelo Ezijwayelekile
Izakhiwo zamakhemikhali eziyingqayizivele zikaThiourea (isb., ikhono lokwenza ama-complexes ngezinsimbi, ukusebenza njenge-ejenti yokunciphisa, nokuhlanganyela ekwakhiweni kwe-heterocyclic) zenza kube yinto ebalulekile ezimbonini eziningi:
3.1 Izimboni kanye ne-Metallurgy
Ukucwengisisa Nokucwenga Insimbi: Kusetshenziswa njenge-ejenti eyinkimbinkimbi ekukhucululeni igolide nesiliva (isb., ekukhishweni kwegolide elingena-cyanide) ukuncibilikisa izinsimbi eziyigugu kusuka kuma-ore. Kusebenza njengesikhanyisi nesiqinisi ekufakweni kwe-nickel, ithusi, kanye ne-zinc, okuthuthukisa ukufana kokucwenga kanye nokukhanya.
Ukuvinjelwa Kokugqwala: Kufakwa kuma-coolant ezimboni, izixazululo zokugaya, kanye noketshezi lokusebenza ngensimbi ukuze kwakhiwe ifilimu evikelayo ezindaweni zensimbi, ukuvimbela ukugqwala kanye nokugqwala kwe-asidi.
3.2 Ukwenziwa Kwamakhemikhali
Imithi kanye namakhemikhali ezolimo: Isici esibalulekile ekukhiqizweni kwama-sulfonamides (imithi yokulwa namagciwane), ama-hormone e-thyroid, kanye nemithi yokubulala ukhula (isb., imithi yokubulala ukhula esekelwe e-thiourea yokulawula ukhula ezitshalweni).
Ukukhiqizwa Kodayi Nokugqama: Kusetshenziselwa ukuhlanganisa izinto ezisuselwa ku-thiazole kanye ne-imidazole, okuyizinto ezibalulekile zamadayi e-azo kanye nemibala ephilayo (isb., yezindwangu, ipulasitiki, kanye noyinki).
Imboni Yenjoloba: Isebenza njengesisheshisi kanye nokuguqula i-vulcanization, ithuthukisa ukuqina kwenjoloba, ukumelana nokushisa, kanye nokumelana nokuguga emathayini, ezimvini, kanye nemikhiqizo yenjoloba.
3.3 Ukusetshenziswa Kwelebhu Nokukhethekile
I-Analytical Chemistry: Isetshenziswa njenge-reagent ukuthola nokulinganisa izinsimbi ezisindayo (isb., i-selenium) ngokwakheka okuyinkimbinkimbi.
Ukuthwebula izithombe: Kusebenza njenge-ejenti yokulungisa kanye ne-ejenti yokunciphisa izithombe ezimnyama nezimhlophe, kusiza ekuqiniseni izithombe nokususa ama-halide esiliva angavezwanga.
Ukuphepha Nokuthobela Imithetho
4.1 Iziqondiso Zokuphepha
Ukuphatha: Gwema ukuhogela uthuli noma ukuthintana ngqo kwesikhumba/namehlo. Gqoka izibuko ezingangeni uthuli, amagilavu e-nitrile, kanye nemaski yokuphefumula (N95 noma ngaphezulu) ezindaweni ezingangenisi umoya kahle. Geza izandla kahle ngensipho namanzi ngemva kokuthintana.
Indawo Yokugcina: Gcina endaweni yokugcina epholile, eyomile, enomoya omuhle kude nama-asidi aqinile (isb., i-hydrochloric acid), izinto ezikhipha i-oxidizing (isb., i-hydrogen peroxide), kanye namalangabi avulekile. Sebenzisa i-HDPE noma imigqomo yefayibha evaliwe ukuvimbela ukumuncwa nokungcola komswakama.
Ukulahlwa: Lahla imfucuza noma i-thiourea engasetshenziswanga ngokuhambisana nemithethonqubo yendawo yemvelo (isb., njengemfucuza yezimboni engeyona ingozi; gwema ukudedela enhlabathini noma emanzini).
4.2 Ukuthobela Imithetho
Ihambisana noMthethonqubo we-REACH (i-EU) (obhaliswe ngaphansi kohlu lwe-REACH SVHC, akukho mingcele yokusetshenziswa kwezimboni).
Ihlangabezana nezindinganiso ze-FDA (zezinhlelo zokusebenza zokuxhumana nokudla, isib., njengesivimbeli sokugqwala emishinini yokucubungula ukudla).
Ihambisana namazinga e-USP/NF (ibanga lemithi) ukuze isetshenziswe ekwakhiweni kwemithi.
Iqinisekiswe yi-ISO 9001 (ukuphathwa kwekhwalithi) kanye ne-ISO 14001 (ukuphathwa kwemvelo) ngezinqubo zokukhiqiza.
Okuvelele kweShedi Ledatha Lobuchwepheshe (i-TDS)
| Ipharamitha | Ibanga Lezimboni | Ibanga Lemithi | Indlela Yokuhlola |
| Ubumsulwa | ≥99.0% | ≥99.5% | I-Chromatography Yoketshezi Esebenza Kakhulu (i-HPLC) |
| Okuqukethwe komswakama | ≤0.5% | ≤0.3% | UKarl Fischer Titration |
| Okuqukethwe Komlotha | ≤0.1% | ≤0.05% | Ukuhlaziywa kwe-Gravimetric |
| Insimbi (Fe) | ≤5 ppm | ≤2 ppm | I-Atomic Absorption Spectroscopy (AAS) |
| Izinto Ezinganyibiliki Emanzini | ≤0.01% | ≤0.005% | Ukuhlunga Nokomisa |
Kungani Kufanele Ukhethe I-Thiourea Yethu?
Amabanga Enziwe Ngokwezifiso: Sinikeza amabanga ezimboni, ezokwelapha, kanye naselabhorethri ukuze kuhlangatshezwane nezidingo zamakhasimende ezithile (isb., okuqukethwe okuphansi kwensimbi esindayo yokusetshenziswa kwemithi).
Ukunikezwa Okuzinzile: Izindawo zethu zokukhiqiza (ezinomthamo waminyaka yonke wamathani angu-5,000) ziqinisekisa ukulethwa ngesikhathi, ngisho noma ama-oda amaningi (ama-drum angu-20-500 kg).
Usekelo Lobuchwepheshe: Ithimba lethu losokhemisi linikeza ukubonisana ngaphambi kokuthengisa (isib. ukufanisa izinhlelo zokusebenza) kanye nosekelo ngemuva kokuthengisa (isib. ukuxazulula izinkinga zokucubungula).
Ukukhiqizwa Okungenangozi Kwemvelo: Inqubo yethu yokukhiqiza inciphisa amanzi angcolile kanye nokukhishwa kwegesi, okuhambisana nemigomo yokuzinza komhlaba wonke.
Xhumana nathi
Ukuze uthole amanani, amasampula, noma imibhalo ephelele ye-TDS/COA, xhumana nethimba lethu lokuthengisa:
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