Yini inombolo ye-CAS?
Inombolo ye-CAS, eyaziwa njengenombolo yesevisi yamakhemikhali (i-CAS), inombolo ehlukile yokuhlonza eyabelwe into yamakhemikhali yi-US Chemical Abcentractions (CAS). Into ngayinye yamakhemikhali eyaziwayo, kufaka phakathi izinto, amakhompiyutha, izixube, kanye nama-biomolecule, anikezwe inombolo ethile ye-CAS. Lolu hlelo lokubala lusetshenziswa kabanzi kwizimboni zamakhemikhali, ezenzakahle, kanye nezinto zokwenziwa zesayensi futhi kuhloswe ngalo ukuhlinzeka indinganiso emhlabeni jikelele ekuhlonzeni izinto zamakhemikhali.
Ukwakheka nencazelo yenombolo ye-CAS
Inombolo ye-CAS iqukethe izinombolo ezintathu ngefomethi "XXX-XX-X". Amadijithi amathathu okuqala yinombolo ye-serial, kusetshenziselwa amadijithi amabili aphakathi ukuze ahlolwe, futhi idijithi yokugcina iyinombolo yokuhlola. Lolu hlelo lokubala lwenzelwe ukuqinisekisa ukuthi into ngayinye yamakhemikhali inobunikazi obuhlukile, ukugwema ukudideka ngenxa yokuqothuka okuhlukile noma ngolimi. Isibonelo, inombolo ye-CAS yamanzi ingama-7732-18-5, futhi kubhekiselwe kule nombolo ikhomba into efanayo yamakhemikhali kungakhathalekile izwe noma imboni.
Ukubaluleka kwezinombolo ze-CAS nezindawo zohlelo lokusebenza
Ukubaluleka kwenombolo ye-CAS kuboniswa ikakhulukazi ezintweni ezilandelayo:

Ukukhonjwa Kwezinto Zamakhemikhali Ezomhlaba Wonke: Inombolo ye-CAS ihlinzeka ngobunikazi obuhlukile emhlabeni ngento ngayinye yamakhemikhali. Noma ngabe zisezincwadini zesayensi, izinhlelo ze-patent, ilebula yomkhiqizo noma amashidi wedatha yezokuphepha, inombolo ye-CAS isebenza njengejwayelekile efanayo futhi iqinisekisa imininingwane engaguquki.

Ukuphathwa kwedatha kanye nokubuyiselwa kwemali: Ngenxa yezinhlobonhlobo ezahlukahlukene zamakhemikhali kanye ne-complex nomenclature, izinombolo ze-CAS zenza ukuphathwa kanye nokubuyiselwa kwemininingwane yamakhemikhali esebenza kahle. Abaphenyi, izinkampani zamakhemikhali kanye nezinhlaka zikahulumeni zingafinyelela ngokushesha ulwazi mayelana nezinto zamakhemikhali ngokusebenzisa izinombolo ze-CAS.

Ukuphathwa komthetho nokuphepha okulawulayo kanye nokuphepha: ekuphathweni kwamakhemikhali, izinombolo ze-CAS ziyithuluzi elibalulekile lokuqinisekisa ukutholwa okulawulwayo. Imithethonqubo yamakhemikhali amaningi kazwelonke neyesifunda, njengokubhalisa, ukuhlolwa, ukugunyazwa kanye nokuvinjelwa kwamakhemikhali (ukufinyelela) kanye nokwenza izinto ezinobuthi zento (TSCA), zidinga izinombolo ze-CAS ukuqinisekisa ubuthi nokuphepha kwezinto zamakhemikhali.

Ngiyithola kanjani futhi ngiyisebenzisa kanjani inombolo ye-CAS?
Izinombolo ze-Cas zivame ukutholakala ngolwazi olukhethekile noma izincwadi zamakhemikhali, njenge-CHEMPKIDER, njll lapho zisebenzisa inombolo ye-CAS, njengoba nenombolo eyodwa efakiwe inembile, njengoba kunephutha elithile lamakhemikhali atholakele. Izinombolo ze-Cas zivame ukusetshenziswa ezinqubweni zokukhiqiza zamakhemikhali nezinqubo zokuthengwa kwempahla, ukulawulwa kwekhwalithi, kanye nokulungiselela kanye nokuphathwa kwamashidi wedatha yokuphepha.
Ukubeka kafushane
Njengohlelo lokuhlonza izidakamizwa lwamakhemikhali asetshenziswa emhlabeni jikelele, inombolo ye-CAS ithuthukisa kakhulu ukusebenza kahle nokunemba kokubuyiselwa kwemininingwane yamakhemikhali. Izinombolo ze-Cas zidlala indima engenakuphikwa embonini yamakhemikhali, kungaba ocwaningweni nasekukhiqizweni, noma ekuphathweni kokuhambisana nokuphepha nokuphepha. Ngakho-ke, ukuqonda nokusebenzisa kahle izinombolo ze-CAS kubalulekile kubasebenzi bezimboni zamakhemikhali.