Ithetha ntoni inombolo yeCAS? -Ukuqonda "ikhadi lesazisi" sekhemikhali
Ithetha ntoni inombolo yeCAS? Kwishishini lemichiza, iNombolo yeCAS sisichongi sekhemikhali esibalulekileyo esichonga ngokukodwa into nganye yeekhemikhali, kwaye inikezelwe yiNkonzo yeMichiza yeeNgcaciso zeMichiza (CAS) kwaye ibaluleke njengekhadi lesazisi somntu. Ngokuqonda inkcazo, isakhiwo kunye nenjongo yenombolo ye-CAS, sinokuyiqonda kakuhle indima yayo ebalulekileyo kuphando lweekhemikhali, imveliso kunye norhwebo.
Yintoni inombolo yeCAS?
Inombolo ye-CAS, eyaziwa ngokuba yiNombolo yoBhaliso lweNkonzo yeeNkozo zeMichiza, sisichongi esisodwa esinenombolo kunye nedash echaza into nganye eyaziwayo yeekhemikhali. inani leCAS lidla ngokuba nenani elinamalungu amathathu kwifomathi “XXX-XX-X”. Ngokomzekelo, inombolo ye-CAS yamanzi yi-7732-18-5. icandelo lokuqala lidla ngokuba yinani elipheleleyo ukuya kutsho kwisi-7, elesibini linani elinemivo emi-2, kwaye elesithathu linani eli-1 lokutshekisha. Esi sakhiwo senza inombolo ye-CAS nganye ibe yodwa, iqinisekisa ukuchaneka kunye nokuhambelana ekuchongeni izinto zekhemikhali kwishishini lemichiza yehlabathi.
Yintoni injongo yenombolo yeCAS?
Emva kokuqonda ukuba inani le-CAS lithetha ntoni, kufuneka sazi ukusetyenziswa kwayo okuphambili. Kushishino lweekhemikhali kunye neekhemikhali, amanani e-CAS asetyenziswa ngokubanzi kwezi ndlela zilandelayo:
Ukuchongwa kweziyobisi kunye nokufunyanwa kolwazi: Ekubeni amagama ezinto zekhemikhali anokwahluka ukusuka kulwimi ukuya kulwimi okanye ummandla ukuya kummandla, inombolo ye-CAS, njengesazisi esikhethekileyo, ithintela ngokufanelekileyo ukudideka okubangelwa koku kungahambisani. Iingcali zenzululwazi, abaphandi kunye namashishini basebenzisa amanani e-CAS ngokukhawuleza nangokuchanekileyo ukubuyisela ulwazi olucacileyo malunga nekhemikhali, kubandakanywa isakhiwo se-molecular, izakhiwo ze-physicochemical, indawo zesicelo kunye nokunye.

Ukuthotyelwa ngokusemthethweni kunye nolawulo lokhuseleko: Kwihlabathi jikelele, amanani e-CAS afunwa yimimiselo yolawulo lweekhemikhali kumazwe amaninzi nakwimimandla. Ngokomzekelo, inombolo ye-CAS lulwazi oluyimfuneko kumaphepha edatha yokhuseleko lwamachiza (SDS). Inceda iinkampani kunye nabalawuli ukuba balawule ngcono ukugcinwa, ukuthutha kunye nokusetyenziswa kweekhemikhali ukuqinisekisa ukuthotyelwa kwemimiselo efanelekileyo kunye nemigangatho yokhuseleko.

URhwebo lwaMazwe ngaMazwe kunye noLawulo lweKhonkco loNikezelo: Kurhwebo lwamazwe ngamazwe kunye nothutho lweemveliso zemichiza, inombolo ye-CAS isebenza njengolwimi oluqhelekileyo, ukuphelisa ukungaqondakali kunye neempazamo ezivela kumahluko kumagama ezinto zekhemikhali kunye nokukhuthaza ukungafihli kunye nokusebenza kakuhle kwikhonkco lokubonelela.

Ungawafumana njani kwaye uwasebenzise njani amanani eCAS?
Emva kokuqonda ukuba inombolo ye-CAS ithetha ntoni kunye nokubaluleka kwayo, kufuneka kwakhona sazi indlela yokufumana nokusebenzisa inombolo ye-CAS. Kukho iindlela ezininzi zokufumana inombolo ye-CAS:
Uncwadi lwemichiza kunye nogcino-lwazi: Amanani e-CAS ayesuka kwisiseko sedatha yeNkonzo yeeNkozo zeMichiza. Namhlanje, ezininzi iinkcukacha ze-intanethi, ezifana ne-PubChem, i-ChemSpider, kunye ne-SciFinder, zibonelela ngokufikelela kwiinombolo ze-CAS kunye nolwazi lwazo lwemichiza ehambelana nayo.

Ababoneleli bemichiza kunye nabavelisi: Uninzi lwabanikezeli beekhemikhali babonisa amanani e-CAS kwiinkcazo zabo zemveliso kunye neelebhile ukunceda abathengi bachonge kwaye bathenge imichiza echanekileyo.

Isitshixo sokusebenzisa amanani e-CAS kukuba awodwa kwaye aqondwa ngokubanzi. Ingaba umphandi uphanda uncwadi lwekhemikhali okanye inkampani iqinisekisa ukuba iimveliso zayo zihambelana nemigangatho yamazwe ngamazwe, inombolo ye-CAS sisixhobo esifanelekileyo nesithembekileyo.
Kutheni amanani eCAS ebaluleke kangaka nje?
Inombolo ye-CAS ingaphezulu kwenani, imele ulwimi oluqhelekileyo lwehlabathi lemichiza. Ukwazi ukuba inombolo ye-CAS ithetha ntoni inceda ukuqonda indima yayo ephambili ekuchongeni imichiza, ukuthotyelwa kolawulo, ulawulo lokhuseleko kunye norhwebo lwamazwe ngamazwe. Kwihlabathi lanamhlanje lehlabathi, inombolo ye-CAS isebenza 'njengekhadi lesazisi' lemichiza, iqinisekisa ukufana kunye nokungafihli kulawulo lwemichiza kumazwe nakwimimandla.
Ukuqukumbela
Iyintoni intsingiselo yenombolo ye-CAS ayisiyiyo kuphela umbuzo wobungcali beekhemikhali, kodwa kunye nenqaku lolwazi olunempembelelo ebanzi. Ingaba kuphando, ukuveliswa, okanye urhwebo, ukusetyenziswa kweenombolo zeCAS kunceda ukunciphisa ukungaqondi kakuhle, ukuphucula ukusebenza kakuhle, nokuqinisekisa ukhuseleko. Ke ngoko, ukuziqhelanisa neengqikelelo kunye nokusetyenziswa kwamanani e-CAS kubalulekile kwabo basebenza kwikhemistri okanye kumashishini anxulumeneyo.