asia_oju-iwe

ọja

2-Chloro-5-fluoronicotinic acid (CAS# 38186-88-8)

Ohun-ini Kemikali:

Fọọmu Molecular C6H3ClFNO2
Molar Mass 175.54
iwuwo 1.576±0.06 g/cm3(Asọtẹlẹ)
Ojuami Iyo 141-142°C
Ojuami Boling 297.0± 35.0 °C(Asọtẹlẹ)
Vapor Presure 349mmHg ni 25°C
Ifarahan Crystallization
pKa 1.67± 0.25 (Asọtẹlẹ)
Ibi ipamọ Ipo labẹ gaasi inert (nitrogen tabi argon) ni 2-8 ° C
Atọka Refractive 1.313
MDL MFCD03092932

Alaye ọja

ọja Tags

Awọn aami ewu Xi - Irritant
Awọn koodu ewu 36/37/38 - Irritating si oju, eto atẹgun ati awọ ara.
Apejuwe Abo S7/9 -
S24/25 - Yago fun olubasọrọ pẹlu awọ ara ati oju.
S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun.
S36 / 37 - Wọ aṣọ aabo ati awọn ibọwọ to dara.
S38 - Ni ọran ti aipe afẹfẹ, wọ awọn ohun elo atẹgun ti o dara.
S51 - Lo nikan ni awọn agbegbe ti o ni afẹfẹ daradara.
WGK Germany 3
Kíláàsì ewu IKANU

 

Ọrọ Iṣaaju

2-chloro-5-fluoronicotinic acid. Atẹle jẹ ifihan si awọn ohun-ini, awọn lilo, awọn ọna igbaradi ati alaye ailewu ti 2-chloro-5-fluoronicotinic acid:

 

Didara:

-2-Chloro-5-fluoronicotinic acid jẹ kristali ti ko ni awọ.

- Ni iwọn otutu yara, o ni solubility kekere ati ki o kere si solubility ninu omi.

- O jẹ ekikan ni agbara ati pe o le fesi pẹlu alkali lati ṣe iyọ ti o baamu.

-2-Chloro-5-fluoronicotinic acid jẹ ohun elo oxidizing ti o ga julọ.

 

Lo:

-2-Chloro-5-fluoronicotinic acid le ṣee lo bi reagent fun awọn acids ti o lagbara bi ayase acid ni awọn aati iṣelọpọ Organic.

O le ṣee lo fun awọn aati fluorinated ni iṣelọpọ Organic, gẹgẹbi fluorination ati cyclofluorination aromatic.

- 2-Chloro-5-fluoronicotinic acid tun le ṣee lo bi agbedemeji ni awọn awọ ati awọn itanna fluorescent.

 

Ọna:

Ọna igbaradi ti o wọpọ fun 2-chloro-5-fluoronicotinic acid jẹ nipa didaṣe 2,5-diaminoalkynyl niacin pẹlu iye ti o yẹ ti hydrofluoric acid ati awọn aṣoju chlorinating.

 

Alaye Abo:

- 2-chloro-5-fluoronicotinic acid jẹ ohun elo Organic ti o ni ibinu ati pe o le ni awọn ipa ibinu lori awọ ara, oju, ati eto atẹgun. Wọ iye ti o yẹ fun jia aabo nigba lilo ati yago fun olubasọrọ taara pẹlu awọ ara ati oju.

- Lakoko iṣẹ, fentilesonu yẹ ki o ni okun lati yago fun ifasimu ti awọn eefin lati inu agbo yii.

- 2-Chloro-5-fluoronicotinic acid yẹ ki o wa ni ipamọ kuro ninu awọn orisun ooru ati awọn nkan ti o jona ati ti a fipamọ sinu gbigbẹ, ibi tutu.


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