Iindaba zeshishini
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I-oyile yaseSaudi ihlaselwa kwakhona! I-Crude ibheka kwi-70 yeedola!
Elinye iliza alizange liphakame elinye. Iindaba zokunqunyulwa kwe-OPEC kunye neebhombu zase-Iraq azizange zimke kwakhona i-oyile yaseSaudi yabetha kwakhona! Ngokuthe ngqo kwi-70 mark! Emva kokuba i-Iraq ihlaselwe, iSaudi Arabia ...Funda ngokugqithisileyo -
Ukusetyenziswa kwe-2-naphthol
I-2-Naphthol, eyaziwa ngokuba yi-β-naphthol, i-acetonaphthol okanye i-2-hydroxynaphthalene, i-white flakes ecwebezelayo okanye umgubo omhlophe. Ubuninzi be-1.28g/cm3. Indawo yokunyibilika yi123～124℃, indawo yokubilisa yi285℃286℃, kwaye iflash point yi161℃. Iyatsha, kwaye umbala uya kuba mnyama emva kwexesha elide ...Funda ngokugqithisileyo -
Nceda ukholelwe ukuba singabasebenzi kwaye umzi-mveliso wethu unovelwano kakhulu
Ukugqibelela kuzuzwa ngezidanga ezicothayo; kufuna isandla sexesha. Ihlabathi ekwakufuneka lize, kwakufuneka lihambe bubomi, njengeenkumbulo zezizukulwana ezininzi, uMalume uDahl washiya ngonaphakade, ingcamango yobuqili bakhe, ingcamango yokuhlekisa kwakhe, ekukhanyeni nasethunzini uya kuba lihlabathi elincinci.Funda ngokugqithisileyo -
Ukunyuka kwamaxabiso ezinto?
Amaxabiso ayenyuka!Imali iya iphelelwa lixabiso! IMelika ikhokela ihlabathi ukukhulula amanzi! Amaxabiso ezinto ezithengiswayo ayenyuka! Amaxabiso ezinto ezikrwada anyuke kakhulu, nto leyo enyanzelisa ukuba iimpahla zabathengi zinyuke ngokukhawuleza kwixabiso! Ekugqibeleni, umthengi uyahlawula! Ingaba isipaji sakho silungile? Uphambene kakhulu! I-US iyakhutshwa...Funda ngokugqithisileyo -
Phuma apha ulumkile!Imali yelizwe iwile, amaxabiso onyuka, ukuchaswa kokulahlwa rhoqo!
I-Turkey sele ihlupheke ngenxa yemali yokuwa kunye nokunyuka kwamaxabiso kwiminyaka emibini edlulileyo. Ngo-2020, ubhubhani omtsha wajongana neTurkey esinye isibetho, wayityhalela ekuwohlokeni kwezoqoqosho. Imali yaseTurkey, i-lira, iyawa ngesantya esirekhodiweyo kwaye oovimba bayo botshintshiselwano lwangaphandle baya behla...Funda ngokugqithisileyo -
Ukunyuka kwamaxabiso ngokwesondo okungalawulekiyo! Amaxabiso emichiza amaninzi athe nkqo!
Ngosuku lokuqala emva kweholide, ixabiso lezinto zemichiza ekrwada linyuke. Abanye abantu bathi, ungakhathazeki, ndifuna ukulinda, Ukulinda ukuza, kuguqulwe amatyeli aliqela ixabiso! Ngokuthandabuzayo ukuya kwikhulu, Kwimarike yanamhlanje yekhemikhali, iTrance ayiyontlekisa, yinyaniso! Ayilawuleki...Funda ngokugqithisileyo -
Umkhwa owomeleleyo kwintengiso yeekhemikhali kulindeleke ukuba uqhubeke! Athena
Ukuvalwa kwezinto ezininzi zokucoca! Ioyile ekrwada inyuka iye kutsho kwinyanga ezili-13 ukuphakama! Njengoko imozulu ebandayo isiya kumazantsi eTexas, lonke ilizwe laseTexas liye lanyanzeliswa ukuba liphumeze ukucima kombane okujikelezayo ukuze kuncitshiswe imfuno kunye nokuphepha “ukucima okuyingozi” okwexesha elide. Ukusasazeka kwe p...Funda ngokugqithisileyo -
Ukukhawuleza kunye nokulawulwa kweedayi ezahlukeneyo ze-textile
. Amalaphu amathandathu ahamba ngokukhawuleza 1. Ukukhawuleza ukukhanya Ukukhawuleza ukukhanya kubhekiselele kwiqondo lokuguga kwamalaphu anemibala ngokukhanya kwelanga. Indlela yokuvavanya inokuba kukukhanya kwelanga okanye ukukhanya komatshini emini. Iqondo lokuphela kwesampulu emva kokuba sesichengeni lithelekiswa nesampulu yombala eqhelekileyo. Kuyi div...Funda ngokugqithisileyo -
Zingaphi iibhokisi ezingekhoyo? Isitya sivaliwe kumgca wemveliso kwaye sithunyelwe ngokuthe ngqo kwi-terminal!
Umgqomo “kunzima ukuyifumana ibhokisi”, ukuze amashishini emveliso yeekhonteyina angenise ukukhula okuqhumayo, amanye amashishini eekhonteyina ngexesha loMnyhadala waseNtwasahlobo nawo ayanyusa imveliso ukuze afumane iiodolo. Ubonelelo lwesikhongozelo ludlula imfuno Abavelisi bayaqhubeka nokuqesha...Funda ngokugqithisileyo -
I-Trimethylol amino methane (CAS77-86-1) kumashishini ahlukeneyo xa kuthengwa izilumkiso
1. I-Trihydroxymethyl aminomethane ye-industrial synthesis direction ngenxa yesakhiwo sayo esilula, i-athomu ye-carbon ephakathi i-tetrahedral structure, equkethe i-hydroxymethyl emithathu kunye neqela le-amino, elinokuthi liqhube ukutshintshwa kwezinto ezahlukeneyo kunye nokuphendula kwe-REDOX, luhlobo oluphezulu lwe-ch. ..Funda ngokugqithisileyo -
Amaxabiso othutho aphezulu!Izibuko liyagqabhuka!
Kwiveki yokuqala emva koMnyhadala we-Spring, iindaba ezilungileyo zokuthunyelwa kwe-US kunye neYurophu ngokwenene ... hayi Ngokutsho kweBaltic Freight Index (FBX), i-Asia ukuya kuMntla Yurophu index yenyuka nge-3.6% ukusuka kwiveki edlulileyo ukuya kwi-$ 8,455 / FEU, inyuke nge-145% ukusukela ekuqaleni kukaDisemba kwaye inyuke nge-428% ukusuka ...Funda ngokugqithisileyo -
Abathengisi behlabathi jikelele balindele ngexhala "Yenziwe eTshayina"!
Iindleko zokuthutha ukusuka e-China ukuya eYurophu ziye zanda ngokuphindwe kahlanu kwiinyanga zamva nje ngenxa yendawo yokuthutha eqinile.Ichatshazelwa yile nto, iimpahla zasekhaya zaseYurophu, amathoyizi kunye namanye amashishini okuthengiswa kwezinto ezithengiswayo ziqinile.Amaxesha okuhanjiswa komthengisi aqhubeka enyuka ukuya kwinqanaba eliphezulu ukususela kwi-1997 .Funda ngokugqithisileyo