IThiourea
Isishwankathelo seMveliso
Igama leKhemikhali: Thiourea
Inombolo ye-CAS: 62-56-6
Ifomula yeMolekyuli: CH₄N₂S
Ubunzima beMolekyuli: 76.12 g/mol
Inkangeleko: Umgubo omhlophe wekristale okanye iiprili; azinavumba okanye zinevumba elincinane elifana ne-ammonia
Ukunyibilika: Inyibilika kakhulu emanzini (137 g/L kwi-20°C), inyibilika kwi-ethanol, inyibilika kancinci kwi-ether kunye ne-acetone
I-Thiourea yinxalenye ebalulekileyo yesalfure yendalo enesakhiwo esifana ne-urea (ithatha indawo ye-atom yeoksijini ngesalfure). Ibonisa ukusabela okungaqhelekanga kweekhemikhali, okwenza ukuba ibe yinto eluhlaza eguquguqukayo kunye nesongezelelo kwiindawo zoshishino, ezolimo, kunye neelebhu. Ngeempawu zomzimba ezizinzileyo kunye nokusabela okulawulekayo, ihlangabezana nemigangatho engqongqo yomgangatho kwiimeko ezahlukeneyo zokusetyenziswa.
Iipropati eziphambili kunye neenzuzo
| Ipropati | Inkcazo | Inzuzo engundoqo |
| Indawo yokunyibilika | 176 - 178°C (iyabola ngaphezu kwe-180°C) | Uzinzo lobushushu ngaphakathi kobushushu obuqhelekileyo bokucubungula, ukuthintela ukubola kwangaphambi kwexesha |
| Ixabiso le-pH (isisombululo samanzi esingu-1%) | 6.0 - 7.5 | Ayithathi cala ukuya kwi-asidi encinci, iyahambelana ne-substrates ezininzi ngaphandle kokubangela ukugqwala okanye ukungalingani kwe-pH |
| Ubunyulu (umzuzu) | 99.0% (umgangatho wezoshishino); 99.5% (umgangatho weyeza) | Ubunyulu obuphezulu bunciphisa ukungcola okunokuchaphazela ukusebenza kwemveliso okanye kubangele iziphumo ebezingalindelekanga |
| Umxholo weSinyithi esinzima (ubuninzi) | 10 ppm (inani lilonke le-Pb, i-Cd, i-Hg) | Ihlangabezana nemigangatho yokusingqongileyo kunye nokhuseleko, ifanelekile kwizicelo ezinxulumene nokutya okanye amayeza |
| I-Hygroscopicity | Iphantsi (ifunxa umswakama omncinci kubushushu begumbi) | Kulula ukuyigcina nokuyiphatha ngaphandle kokuqunjelwa, ukuqinisekisa umgangatho ohlala uhleli ngokuhamba kwexesha |
Izicelo eziqhelekileyo
Iimpawu zekhemikhali ezikhethekileyo zikaThiourea (umz., ukukwazi ukwenza ii-complexes ngeesinyithi, ukusebenza njenge-reducing agent, kunye nokuthatha inxaxheba kwi-heterocyclic synthesis) zenza ukuba ibaluleke kakhulu kumashishini amaninzi:
3.1 Imizi-mveliso kunye nesinyithi
Ukucocwa kwesinyithi kunye nokuPlatwa kwesinyithi: Isetyenziswa njengesixhobo esidibanisayo ekutsaleni igolide nesilivere (umz., ekutsalweni kwegolide engena-cyanide) ukunyibilikisa izinyithi ezixabisekileyo kwi-ores. Isebenza njengesikhanyisi kunye nesiqinisi kwi-nickel, i-copper, kunye ne-zinc electroplating, iphucula ukufana kunye nokukhazimla kwengubo.
Ukuthintela ukugqwala: Kongezwa kwii-coolants zoshishino, izisombululo ze-pickling, kunye nolwelo lwesinyithi ukwenza ifilimu ekhuselayo kwiindawo zesinyithi, ukuthintela ukugqwala kunye nokugqwala kwe-asidi.
3.2 Ukwenziwa kweeKhemikhali
Amayeza kunye neekhemikhali zezolimo: Eyona nto iphambili ekuvelisweni kwe-sulfonamides (amayeza okulwa neentsholongwane), iihomoni ze-thyroid, kunye neyeza zokubulala ukhula (umz., amayeza okubulala ukhula asekelwe kwi-thiourea okulawula ukhula kwizityalo).
Ukwenziwa kweDayi kunye nePigment: Kusetyenziselwa ukwenziwa kwe-thiazole kunye ne-imidazole derivatives, eziyinxalenye ebalulekileyo yedayi ye-azo kunye nepigment yendalo (umz., kwimpahla, iiplastiki, kunye nee-inki).
Ishishini lerabha: Lisebenza njengesikhawulezisi kunye nesiguquli se-vulcanization, liphucula ukuthamba kwerabha, ukumelana nobushushu, kunye nokumelana nokuguga kwamatayara, izitywini, kunye neemveliso zerabha.
3.3 Ukusetyenziswa kweLebhu kunye neeNdlela eziKhethekileyo
I-Analytical Chemistry: Isetyenziswa njenge-reagent ukufumanisa nokulinganisa iintsimbi ezinzima (umz., i-selenium) ngokusebenzisa ukwakheka okuntsonkothileyo.
Ukufota: Kusebenza njengearhente yokulungisa kunye nearhente yokunciphisa kwimifanekiso emnyama namhlophe, kunceda ekuzinziseni imifanekiso kunye nokususa i-halides zesilivere ezingatyhilekanga.
Ukhuseleko kunye nokuThotyelwa kweMithetho
4.1 Izikhokelo zoKhuseleko
Ukuphatha: Kuphephe ukuphefumla uthuli okanye ukudibana ngqo nolusu/namehlo. Nxiba iiglasi zokukhusela uthuli, iiglavu ze-nitrile, kunye nemaski yokuphefumla (N95 okanye ngaphezulu) kwiindawo ezingenamoya ungangeniyo. Hlamba izandla kakuhle ngesepha namanzi emva kokuthinta.
Indawo yokugcina: Gcina kwindawo yokugcina epholileyo, eyomileyo, nengena umoya kakuhle kude nee-asidi ezinamandla (umz., i-hydrochloric acid), ii-oxidizing agents (umz., i-hydrogen peroxide), kunye namalangatye avulekileyo. Sebenzisa i-HDPE evaliweyo okanye iidrama zefayibha ukuthintela ukufunxwa komswakama kunye nongcoliseko.
Ukulahlwa: Lahla inkunkuma okanye inkunkuma engasetyenziswanga ngokuhambelana nemigaqo yendawo yokusingqongileyo (umz., njengenkunkuma yemizi-mveliso engenabungozi; kuphephe ukukhupha inkunkuma emhlabeni okanye emanzini).
4.2 Ukuthobela iMithetho
Iyahambelana noMgaqo we-REACH (i-EU) (ibhaliswe phantsi koluhlu lwe-REACH SVHC, akukho miqathango yokusetyenziswa kwimizi-mveliso).
Ihlangabezana neMigangatho ye-FDA (kwizicelo zokunxibelelana nokutya, umz., njengesithinteli sokugqwala kwizixhobo zokulungisa ukutya).
Ihambelana neMigangatho ye-USP/NF (udidi lweyeza) ukuze isetyenziswe ekuhlanganiseni amayeza.
Iqinisekiswe yi-ISO 9001 (ulawulo lomgangatho) kunye ne-ISO 14001 (ulawulo lokusingqongileyo) kwiinkqubo zemveliso.
Iimbalasane zePhepha leDatha yoBugcisa (i-TDS)
| Ipharamitha | Ibanga lezeMveliso | Ibanga leMithi | Indlela yoVavanyo |
| Ubunyulu | ≥99.0% | ≥99.5% | I-Chromatography yoLwakhiwo oluSebenzayo oluPhezulu (i-HPLC) |
| Umxholo wobumanzi | ≤0.5% | ≤0.3% | UKarl Fischer Titration |
| Umxholo wothuthu | ≤0.1% | ≤0.05% | Uhlalutyo lweGravimetric |
| Intsimbi (Fe) | ≤5 ppm | ≤2 ppm | I-Atomic Absorption Spectroscopy (AAS) |
| Izinto Ezingenakunyibilika Emanzini | ≤0.01% | ≤0.005% | Ukuhluza kunye nokomisa |
Kutheni Ukhetha iThiourea Yethu?
Amabanga Alungiselelwe Ngokwezifiso: Sinikezela ngamanqanaba emizi-mveliso, amayeza, kunye neelebhu ukuhlangabezana neemfuno zabathengi ezithile (umz., umxholo wesinyithi esinzima esiphantsi sokusetyenziswa kwamayeza).
Ubonelelo Oluzinzileyo: Izixhobo zethu zemveliso (ezinomthamo wonyaka weetoni ezingama-5,000) ziqinisekisa ukuhanjiswa ngexesha, nokuba ziiodolo ezinkulu (iidrama ezingama-20-500 kg).
Inkxaso yoBugcisa: Iqela lethu leengcali zekhemistri libonelela ngengcebiso yangaphambi kokuthengisa (umz., ukuthelekisa usetyenziso) kunye nenkxaso yasemva kokuthengisa (umz., ukusombulula iingxaki zokucubungula).
Imveliso Enobuhlobo Nokusingqongileyo: Inkqubo yethu yokuvelisa inciphisa amanzi amdaka kunye nokukhutshwa komoya, ihambelana neenjongo zozinzo lwehlabathi.
Qhagamshelana nathi
Ukuze ufumane amaxabiso, iisampulu, okanye uxwebhu olupheleleyo lwe-TDS/COA, nxibelelana neqela lethu lokuthengisa:
I-imeyile: info@anhaochemical.com
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Iwebhusayithi: https://www.anhaochemical.com/