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umkhiqizo

2-Mercaptonicotinic acid (CAS# 38521-46-9)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C6H5NO2S
I-Molar Mass 155.17
Ukuminyana 1.357 (isilinganiso)
I-Melting Point 263-265°C(lit.)
I-Boling Point 295.3±50.0 °C(Kubikezelwe)
I-Flash Point 98.3°C
I-Vapor Presure 0.00727mmHg ku-25°C
Ukubukeka Impushana ephuzi
Umbala ophuzi
I-BRN 119029
pKa 1.98±0.20(Okubikezelwe)
Isimo Sesitoreji Umkhathi ongenayo, izinga lokushisa legumbi
Kuyazwela Kuyazwela emoyeni
I-Refractive Index 1.5380 (isilinganiso)
I-MDL I-MFCD00010102
Izakhiwo Zomzimba Nezamakhemikhali
indawo yokuncibilika 270 °C
Sebenzisa Isetshenziswa njenge-Intermediate yezemithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izimpawu Eziyingozi Xi - Irritant
Amakhodi Engozi 36/37/38 - Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
Incazelo Yokuphepha S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
I-S37/39 – Gqoka amagilavu ​​afanelekile kanye nokuvikela iso/ubuso
I-WGK Germany 3
AMAKHODI E-FLUKA BRAND F 10-23
I-TSCA Yebo
Ikhodi ye-HS 29309090
I-Hazard Class I-IRRITANT

 

Isingeniso

I-2-mercapto-3-pyridylcarboxylic acid iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sezakhiwo zayo, ukusetshenziswa kwayo, izindlela zokukhiqiza kanye nolwazi lokuphepha:

 

Ikhwalithi:

- Ukubukeka: I-2-mercapto-3-pyrolinic acid ayinambala ukuya kukristalu ophuzi okhanyayo noma okuqinile okucwebezelayo.

- Inzwa yokuhogela: inephunga elikhethekile.

- I-Solubility: Incibilika emanzini, ethanol ne-chloroform.

 

Sebenzisa:

- Ingasetshenziswa njengendlela yokulungiselela ama-antibiotics, ama-co-solvents, nama-ejenti ahlanganisayo.

 

Indlela:

I-2-mercapto-3-pyrolicarboxylic acid ingalungiswa ngu:

- I-Balinomycin ihlangana ne-carbamate ukunikeza i-mercapto-picolinate.

- Ukusabela kwe-Esterification: i-mercapto-picolinate isabela nge-alkyd acid ehambisanayo ukuze kutholwe i-2-mercapto-3-pyridylcarboxylic acid.

 

Ulwazi Lokuphepha:

- I-2-mercapto-3-picolinic acid iyacasula. Ngokushesha ngemva kokuxhumana nesikhumba namehlo, hlambulula ngamanzi amaningi.

- Ukuhogela uthuli noma umhwamuko kufanele kugwenywe ngesikhathi sokusebenza ukuze kuqinisekiswe izimo ezinhle zokungenisa umoya.

- Amagilavu ​​okuzivikela, izibuko kanye nemaski yokuzivikela kuyadingeka ukuze kusetshenziswe.

- Esimeni sengozi noma ukumunca ngephutha, funa usizo lwezokwelapha ngokushesha futhi unikeze ulwazi lwento efanelekile.


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