asia_oju-iwe

ọja

3 4-Difluorobenzoic acid (CAS # 455-86-7)

Ohun-ini Kemikali:

Fọọmu Molecular C7H4F2O2
Molar Mass 158.1
iwuwo 1.3486 (iṣiro)
Ojuami Iyo 120-122°C(tan.)
Ojuami Boling 257.0± 20.0 °C(Asọtẹlẹ)
Oju filaṣi 109.2°C
Omi Solubility die-die tiotuka ninu omi tutu
Solubility Chloroform (Diẹ), kẹmika (Diẹ)
Vapor Presure 0.00766mmHg ni 25°C
Ifarahan Imọlẹ ofeefee gara
Àwọ̀ Funfun
BRN Ọdun 2085848
pKa 3.80± 0.10 (Asọtẹlẹ)
Ibi ipamọ Ipo Ti di ni gbigbẹ, Iwọn otutu yara
MDL MFCD00011672

Alaye ọja

ọja Tags

Awọn aami ewu Xn – ipalara
Awọn koodu ewu R22 – Ipalara ti o ba gbe
R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara.
Apejuwe Abo S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun.
S37 / 39 - Wọ awọn ibọwọ ti o dara ati aabo oju / oju
UN ID UN 2811
WGK Germany 3
HS koodu 29163900

 

Ọrọ Iṣaaju

3,4-Difluorobenzoic acid. Atẹle jẹ ifihan si iseda rẹ, lilo, ọna iṣelọpọ ati alaye ailewu:

 

Didara:

- 3,4-Difluorobenzoic acid jẹ kristali funfun ti o lagbara pẹlu õrùn gbigbona.

- O ti wa ni ri to ni yara otutu ati ki o le jẹ tiotuka ni Organic olomi bi alcohols, ethers, ati be be lo, ati ki o ni opin solubility ninu omi.

- 3,4-Difluorobenzoic acid jẹ ekikan ati pe o ṣe atunṣe pẹlu alkali lati ṣe iyọ ti o baamu.

 

Lo:

- 3,4-difluorobenzoic acid jẹ lilo pupọ bi agbedemeji pataki ati ohun elo aise ni iṣelọpọ Organic.

 

Ọna:

- Ọpọlọpọ awọn ọna igbaradi fun 3,4-difluorobenzoic acid, ọkan ninu eyiti o jẹ lilo nigbagbogbo nipasẹ fluorinating acid fluorinated.

- Ọna igbaradi kan pato pẹlu yiyan ti oluranlowo fluorinating ati iṣakoso ti awọn ipo ifaseyin, awọn aṣoju fluorinating ti o wọpọ jẹ hydrogen fluoride, sulfur polyfluoride, bbl

 

Alaye Abo:

- 3,4-Difluorobenzoic acid jẹ kemikali ati pe o yẹ ki o tẹle ni ibamu pẹlu awọn ilana aabo ti o yẹ ati awọn ohun elo aabo kemikali ti o yẹ.

- O le ni ipa ibinu lori oju, awọ ara, ati atẹgun atẹgun ati pe o yẹ ki o wẹ ni kiakia lẹhin olubasọrọ.

- Lakoko itọju, olubasọrọ pẹlu awọn oxidants ti o lagbara ati awọn acids ti o lagbara yẹ ki o yee lati yago fun awọn aati ti o lewu.

- 3,4-Difluorobenzoic acid yẹ ki o wa ni ipamọ ni ibi ti o tutu, gbigbẹ, aaye ti o dara daradara, kuro lati ina ati awọn orisun ooru.


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