Yini i-CAS?
I-CAS imele i-Chemical Abstracts Service, isizindalwazi esigunyaziwe esakhiwe yi-American Chemical Society (ACS.) Inombolo ye-CAS, noma inombolo yokubhalisa ye-CAS, iyinkomba yenombolo eyingqayizivele esetshenziselwa ukumaka izinto zamakhemikhali, izinhlanganisela, ukulandelana kwebhayoloji, ama-polymers, nokunye. . Embonini yamakhemikhali, inombolo ye-CAS iyithuluzi elibalulekile ngoba isiza ososayensi nonjiniyela ukuhlonza nokuthola izinto ezithile zamakhemikhali kalula nangokunembile.
Ukubaluleka kweNombolo ye-CAS
Embonini yamakhemikhali, ukuhlonza nokulandelelwa kwezinto zamakhemikhali kungenye yezinto ezibalulekile zomsebenzi wansuku zonke. Njengoba izinto zamakhemikhali zingase zibe namagama amaningi, amagama avamile noma amagama emikhiqizo, lokhu kungaholela kalula ekudidekeni. inombolo ye-CAS ixazulula le nkinga ngokunikeza inombolo emisiwe esetshenziswa emhlabeni jikelele. Ngaphandle koshintsho egameni noma olimini lwento yekhemikhali, inombolo ye-CAS ihlale ihambelana ngokukhethekile nento ethile. Le ndlela enembile yokuhlonza ibalulekile emikhakheni eminingana ehlanganisa ucwaningo nokuthuthukiswa, ukuthengwa kwempahla, ukukhiqiza kanye nokuthobela imithetho.
Isakhiwo senombolo ye-CAS nokubaluleka kwayo
Inombolo ye-CAS ngokuvamile iqukethe izingxenye ezintathu: izinombolo ezimbili kanye nedijithi yesheke. Isibonelo, inombolo ye-CAS yamanzi ngu-7732-18-5. Lesi sakhiwo, nakuba sibonakala silula, siphethe ulwazi oluningi. Amadijithi amathathu okuqala amelela indawo yento ku-Chemical Abstracts Service, isethi yesibili yamadijithi ikhombisa izici ezihlukile zento, bese kuthi idijithi yokuhlola yokugcina isetshenziswe ukuze kuqinisekiswe ukuthi amadijithi angaphambilini alungile. Ukuqonda ukwakheka kwezinombolo ze-CAS kusiza ochwepheshe ukuthi baziqonde ngokushesha futhi bazisebenzise.
I-CAS embonini Yamakhemikhali
Izinombolo ze-CAS zisetshenziswa kakhulu ekubhaliseni, ekulawuleni nasekuhwebeni kwemikhiqizo yamakhemikhali. Ngesikhathi sokubhaliswa nokungeniswa kwemikhiqizo yamakhemikhali, izinombolo ze-CAS zivame ukudingwa yizinhlangano ezilawulayo ukuze kuqinisekiswe ukuphepha nokuba semthethweni kwamakhemikhali. Ekuhwebeni kwamazwe ngamazwe, izinombolo ze-CAS zisetshenziselwa ukuqinisekisa ukuthi abathengi nabathengisi banolwazi olufanayo lomkhiqizo odayiswayo. Abacwaningi bamakhemikhali nabo badinga ukusho izinombolo ze-CAS lapho beshicilela izincwadi noma befaka isicelo samalungelo obunikazi ukuze baqinisekise ukunemba nokuqinisekiswa kokutholakele kwabo.
Ungazisebenzisa kanjani izinombolo ze-CAS ukuze uthole ulwazi
Ngokusebenzisa izinombolo ze-CAS, abasebenza embonini yamakhemikhali bangakwazi ukuthola ngokunembile ulwazi olumayelana nezinto zamakhemikhali kuzinqolobane eziningi. Isibonelo, ulwazi lwe-Safety Data Sheet (SDS) lwamakhemikhali, ubuthi, umthelela wendawo, indlela yokukhiqiza kanye nentengo yemakethe konke kungatholakala ngokushesha kusetshenziswa inombolo ye-CAS. Leli khono lokubuyisa elisebenzayo liyinani elikhulu ezinkampanini ekwenzeni izinqumo ze-R&D nokuhlola ubungozi.
Ukuqhathaniswa kwezinombolo ze-CAS nezinye izinhlelo zezinombolo
Nakuba izinombolo ze-CAS zisetshenziswa kakhulu embonini yamakhemikhali, ezinye izinhlelo zokubala nazo zikhona, njengenombolo ye-UN yeZizwe Ezihlangene noma inombolo ye-EINECS ye-European Union. Uma kuqhathaniswa, izinombolo ze-CAS zinokufaka okubanzi nokunemba okuphezulu. Lokhu kuholele ekubuseni kwezinombolo ze-CAS embonini yamakhemikhali emhlabeni jikelele.
Isiphetho
I-CAS, njengesihlonzi esimisiwe sezinto zamakhemikhali, isiphenduke ithuluzi elibalulekile embonini yamakhemikhali. Ngezinombolo ze-CAS, izinkampani zamakhemikhali nabacwaningi bayakwazi ukuphatha nokusebenzisa ulwazi lwento yamakhemikhali ngokunembe kakhudlwana nangempumelelo, ngaleyo ndlela bakhuthaze ukuthuthukiswa kwemboni nokuthuthuka kwezobuchwepheshe. Ukuqonda nokusebenzisa kahle inombolo ye-CAS akukwazi nje ukuthuthukisa ukusebenza kahle komsebenzi, kodwa futhi kugwema ngokuphumelelayo izingozi ezingaba khona.