4-bromo-5-methyl-1H-pyrazole-3-carboxylic acid (CAS# 82231-52-5)
| Amakhodi Engozi | 20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma kugwinywe. |
| Incazelo Yokuphepha | I-S24/25 - Gwema ukuthintana nesikhumba namehlo. I-S36/37 – Gqoka izingubo zokuzivikela ezifanele namagilavu. |
| Ikhodi ye-HS | 29331990 |
| I-Hazard Class | I-IRRITANT |
Isingeniso
I-Acid (i-asidi) iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso semvelo yayo, ukusetshenziswa, ukwakhiwa kanye nolwazi lokuphepha:
Imvelo:
-Ukubukeka: Ifomu elivamile limhlophe kuya ku-off-white crystal powder.
-Iphuzu lokuncibilika: Indawo encibilikayo yenhlanganisela ngokuvamile iba ku-100-105°C.
-I-Solubility: Ine-solubility enhle kwezinye izincibilikisi ze-polar, njenge-ethanol, i-dimethyl sulfoxide, njll. Kodwa ukuncibilika emanzini kuphansi.
Sebenzisa:
I-asidi iyindawo evame ukusetshenziswa emaphakathi emkhakheni we-organic synthesis. Ingasetshenziselwa ukuhlanganiswa kwenhlanganisela ye-pyrazole noma i-pyrimidine.
-Le nhlanganisela ingasetshenziswa futhi njengento eluhlaza emkhakheni wezokwelapha.
Indlela Yokulungiselela:
-Ukulungiswa kwe-asidi kungafinyelelwa ngokusabela kwezinyathelo eziningi. Indlela ejwayelekile yokwenziwa iwukuqala entweni yepyrazole bese ekugcineni uhlanganise umkhiqizo oqondiwe ngochungechunge lokuhlangana kwamakhemikhali.
-Indlela ethile yokulungiselela ingase yehluke kuye ngenjongo yocwaningo, ukutholakala kwedatha, njll., futhi ungabheka kumibhalo efanele yesayensi noma yamalungelo obunikazi ukuze uthole ulwazi oluningiliziwe.
Ulwazi Lokuphepha:
-i-asidi ngokuvamile iyinhlanganisela ezinzile ngaphansi kokusetshenziswa nokugcinwa okufanele. Nokho, njenganoma iyiphi ikhemikhali, isadinga ukuphathwa ngokucophelela.
-Kungase kucasule, ngakho-ke kufanele kuthathwe ukunakekelwa ukuze ugweme ukuthintana nesikhumba, amehlo noma umgudu wokuphefumula.
-Lapho usebenzisa futhi uphatha, landela izinqubo ezifanele zaselabhorethri kanye nezinyathelo zokuzivikela, futhi uqinisekise izimo ezifanele zokungena komoya.
