asia_oju-iwe

ọja

2 3-DIBROMO-5-METHYLPYRIDINE(CAS# 29232-39-1)

Ohun-ini Kemikali:

Fọọmu Molecular C6H5Br2N
Molar Mass 250.92
iwuwo 1.911± 0.06 g/cm3 (Asọtẹlẹ)
Ojuami Iyo 53,0 to 57,0 °C
Ojuami Boling 270.8± 35.0 °C(Asọtẹlẹ)
Oju filaṣi > 110 ℃
Vapor Presure 0.0111mmHg ni 25°C
Ifarahan ri to
pKa -1.27± 0.20 (Asọtẹlẹ)
Ibi ipamọ Ipo labẹ gaasi inert (nitrogen tabi argon) ni 2-8 ° C
Atọka Refractive 1.593
MDL MFCD04112574

Alaye ọja

ọja Tags

Awọn koodu ewu R20 / 21/22 - ipalara nipasẹ ifasimu, ni olubasọrọ pẹlu awọ ara ati ti o ba gbe.
R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara.
R41 - Ewu ti pataki ibaje si oju
R25 – Majele ti o ba gbe
Apejuwe Abo S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun.
S36 / 37/39 - Wọ aṣọ aabo to dara, awọn ibọwọ ati aabo oju / oju.
S45 – Ni ọran ti ijamba tabi ti o ba ni ailara, wa imọran iṣoogun lẹsẹkẹsẹ (fi aami han nigbakugba ti o ṣee ṣe.)
S39 - Wọ oju / aabo oju.
UN ID UN 2811 6.1 / PGIII
WGK Germany 3
Kíláàsì ewu IKANU

 

Ọrọ Iṣaaju

2,3-dibromo-5-methylpyridine (2,3-dibromo-5-methylpyridine) jẹ ẹya-ara ti o ni imọran pẹlu ilana kemikali C6H5Br2N. Atẹle ni apejuwe ti iseda rẹ, lilo, igbaradi ati alaye ailewu:

 

Iseda:

2,3-dibromo-5-methylpyridine jẹ awọ-ofeefee ti o lagbara pẹlu õrùn gbigbona. O ni aaye yo ti iwọn 63-65 Celsius ati aaye farabale ti iwọn 269-271 Celsius. O ti wa ni insoluble ninu omi ati tiotuka ni Organic olomi.

 

Lo:

2,3-dibromo-5-methylpyridine jẹ agbedemeji iṣelọpọ Organic ti o wapọ. O le ṣee lo lati ṣajọpọ awọn agbo ogun Organic miiran, gẹgẹbi awọn itọsẹ ti awọn nkan ti nṣiṣe lọwọ biologically, awọn oogun ati awọn ipakokoropaeku. O tun le ṣee lo fun iṣelọpọ ohun elo ti awọn ẹrọ itanna gẹgẹbi awọn diodes ina-emitting Organic (OLED) ati awọn batiri Organic.

 

Ọna:

2,3-dibromo-5-methylpyrridine le ṣee gba nipasẹ didaṣe 5-methylpyridine pẹlu bromine. 5-Methylpyridine akọkọ ṣe atunṣe pẹlu hydrogen bromide, ati lẹhinna tẹsiwaju lati fesi pẹlu methyl kiloraidi ni iwaju ayase kan lati gbe ọja ibi-afẹde.

 

Alaye Abo:

2,3-dibromo-5-methylpyrridine jẹ irritating ati pe o le fa irritation si oju, awọ ara ati eto atẹgun. Lakoko lilo, awọn ilana iṣiṣẹ ailewu yẹ ki o šakiyesi ni muna, olubasọrọ taara pẹlu awọ ara ati awọn oju yẹ ki o yago fun, ati pe iṣẹ naa yẹ ki o rii daju ni aye ti o ni afẹfẹ daradara. Lakoko mimu ati ibi ipamọ, o yẹ ki a ṣe itọju lati yago fun olubasọrọ pẹlu awọn oxidants ati awọn ohun elo flammable lati dena ewu ina ati bugbamu. Ti o ba fa simu tabi ti o farahan si agbo-ara yii, wa imọran iṣoogun lẹsẹkẹsẹ ki o kan si dokita alamọdaju.


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