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

Chemical Property:

Molecular Formula	C7H4F2O2
Molar Misa	158.1
Kuchulukana	1.3486 (chiyerekezo)
Melting Point	120-122°C (kuyatsa)
Boling Point	257.0±20.0 °C(Zonenedweratu)
Pophulikira	109.2°C
Kusungunuka kwamadzi	sungunuka pang'ono m'madzi ozizira
Kusungunuka	Chloroform (Pang'ono), Methanol (Pang'ono)
Kuthamanga kwa Vapor	0.00766mmHg pa 25°C
Maonekedwe	Mwala wonyezimira wachikasu
Mtundu	Choyera
Mtengo wa BRN	2085848
pKa	3.80±0.10(Zonenedweratu)
Mkhalidwe Wosungira	Osindikizidwa muuma, Kutentha Kwapachipinda
MDL	Mtengo wa MFCD00011672

Titumizireni imelo

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa	Xn - Zowopsa
Zizindikiro Zowopsa	R22 - Zowopsa ngati zitamezedwa R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu.
Kufotokozera Zachitetezo	S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala. S37/39 - Valani magolovesi oyenera komanso chitetezo chamaso / kumaso
Ma ID a UN	UN 2811
WGK Germany	3
HS kodi	29163900

Mawu Oyamba

3,4-Difluorobenzoic acid. Zotsatirazi ndizofotokozera za chikhalidwe chake, kagwiritsidwe ntchito, njira yopangira ndi chidziwitso cha chitetezo:

Ubwino:

- 3,4-Difluorobenzoic acid ndi crystalline yoyera yolimba yokhala ndi fungo lopweteka.

- Ndi olimba kutentha firiji ndipo akhoza kusungunuka mu zosungunulira organic monga alcohols, ethers, etc., ndipo ali ndi zochepa kusungunuka m'madzi.

- 3,4-Difluorobenzoic acid ndi acidic ndipo imakhudzidwa ndi alkali kupanga mchere wofanana.

Gwiritsani ntchito:

- 3,4-difluorobenzoic acid imagwiritsidwa ntchito kwambiri ngati chinthu chapakati komanso chopangira mu organic synthesis.

Njira:

- Pali njira zambiri zokonzekera 3,4-difluorobenzoic acid, imodzi mwazomwe zimagwiritsidwa ntchito ndi fluorinating fluorinated acid.

- Njira yeniyeni yokonzekera imaphatikizapo kusankha kwa fluorinating wothandizira ndi kuwongolera momwe zinthu zimachitikira, ma fluorinating agents ndi hydrogen fluoride, sulfure polyfluoride, etc.

Zambiri Zachitetezo:

- 3,4-Difluorobenzoic acid ndi mankhwala ndipo ayenera kutsatiridwa motsatira njira zotetezera ndi zipangizo zoyenera zotetezera mankhwala.

- Zitha kukhala zokhumudwitsa m'maso, pakhungu, ndi m'mapapo ndipo ziyenera kutsukidwa mukangokhudzana.

- Pamankhwala, kukhudzana ndi ma okosijeni amphamvu ndi ma asidi amphamvu kuyenera kupewedwa kuti mupewe zoopsa.

- 3,4-Difluorobenzoic acid iyenera kusungidwa pamalo ozizira, owuma, opanda mpweya wabwino, kutali ndi moto ndi kutentha.

Zam'mbuyo: 4-Chloro-2-fluorotoluene (CAS# 452-75-5)

Ena: 3-Fluoroanisole (CAS# 456-49-5)

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