5-Chloropyridine-2-carboxylic acid (CAS# 86873-60-1)
| Amakhodi Engozi | R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile. R40 – Ubufakazi obuncane bomphumela we-carcinogenic I-R22 – Iyingozi uma igwinywe |
| Incazelo Yokuphepha | S22 - Ungaphefumuli uthuli. S36 – Gqoka izingubo ezifanele zokuzivikela. |
| Inothi Lengozi | Kuyingozi |
| I-Hazard Class | I-IRRITANT |
Isingeniso
I-Acid (i-asidi) iyinhlanganisela yemvelo enefomula yamakhemikhali ethi C6H4ClNO2.
Imvelo:
I-Acid iyikristale eqinile emhlophe kuya kokuphuzi ngokukhanyayo enephunga elikhethekile. Iyancibilika kwezinye izinyibilikisi zemvelo, njenge-ethanol, i-dimethyl sulfoxide ne-dichloromethane, kodwa inokuncibilika okuphansi emanzini. Iyazinzile emoyeni futhi iyabola emazingeni okushisa aphezulu.
Sebenzisa:
I-Acid iyingxenye ebalulekile ye-organic, esetshenziswa kakhulu ekuhlanganiseni ezinye izinhlanganisela eziphilayo. Ingasetshenziswa ekulungiseleleni izibulala-zinambuzane, izidakamizwa, odayi kanye nezinhlanganisela zokuxhumanisa.
Indlela Yokulungiselela:
I-Acid ingahlanganiswa ngezindlela ezihlukahlukene, izindlela ezivame ukusetshenziswa zihlanganisa lezi ezimbili ezilandelayo:
1. I-2-picolinic acid chloride iphendulwa nge-chloroacetic acid ukuze kukhiqizwe umkhiqizo oqondiwe ngosizo lwe-catalyst nangaphansi kwezimo ezifanele.
2. sabela i-2-pyridyl methanol ne-carbonic acid chloride, bese i-hydrolyze nge-asidi ukuze ithole i-asidi.
Ulwazi Lokuphepha:
Ubuthi be-asidi buphansi, kodwa kusadingeka ukuthi unake ukusebenza okuphephile. Gwema ukuthintana ngqo nesikhumba, amehlo kanye nomgudu wokuphefumula, futhi gqoka amagilavu okuzivikela, izibuko kanye namamaski uma kunesidingo. Gwema ukuthintana nama-oxidizing agents kanye nezinto ezivuthayo ngesikhathi sokusebenzisa nokugcina. Kufanele igcinwe endaweni eyomile, enomoya omuhle, kude nomlilo. Uma udliwe noma uhogelwe, funa usizo lwezokwelapha ngokushesha.
