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

Waiwai Kemika:

ʻĀpana Molekala	C7H4F2O2
Molar Mass	158.1
ʻO ka mānoanoa	1.3486 (manaʻo)
Lae hehee	120-122°C(māmā)
Lae Boling	257.0±20.0 °C(Wānana ʻia)
Lae Flash	109.2°C
Hiki i ka wai	hikiwawe iki i ka wai anuanu
Ka hoʻoheheʻe	Chloroform (Liʻiliʻi), Methanol (Liʻiliʻi)
Puʻupuʻu mahu	0.00766mmHg ma 25°C
Ka nana aku	He aniani melemele alohilohi
kala kala	Keʻokeʻo
BRN	2085848
pKa	3.80±0.10(Wanamua)
Kūlana Waihona	Hoʻopaʻa ʻia i loko o kahi maloʻo, lumi wela
MDL	MFCD00011672

E hoʻouna i ka leka uila iā mākou

Huahana Huahana

Nā hōʻailona pōʻino	Xn – Poino
Nā Code Risk	R22 – Poino ke aleia R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili.
Ka wehewehe palekana	S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino. S37/39 – E hoʻohana i nā mīkina lima kūpono a me ka pale maka/maka
UN ID	UN 2811
WGK Kelemānia	3
HS Code	29163900

Hoʻolauna

3,4-Difluorobenzoic acid. ʻO kēia ka hoʻolauna ʻana i kona ʻano, hoʻohana, hana hana a me ka ʻike palekana:

ʻAno maikaʻi:

- ʻO 3,4-Difluorobenzoic acid he paʻa keʻokeʻo keʻokeʻo me kahi ʻala ʻala.

- He paʻa ma ka lumi wela a hiki ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe organik e like me nā alcohols, ethers, a me nā mea ʻē aʻe, a he liʻiliʻi ka solubility i ka wai.

- 3,4-Difluorobenzoic acid he acidic a hoʻopili me ka alkali e hana i ka paʻakai pili.

E hoʻohana:

- Hoʻohana nui ʻia ka 3,4-difluorobenzoic acid ma ke ʻano he koʻikoʻi koʻikoʻi a me nā mea maka i ka synthesis organik.

Hanana:

- Nui nā ʻano hoʻomākaukau no ka 3,4-difluorobenzoic acid, hoʻokahi o ia mea i hoʻohana maʻamau ʻia e ka fluorinating fluorinated acid.

- ʻO ke ʻano hoʻomākaukau kikoʻī e pili ana i ke koho ʻana i ka mea hana fluorinating a me ka mālama ʻana i nā kūlana hopena, ʻo nā mea fluorinating maʻamau he hydrogen fluoride, sulfur polyfluoride, etc.

ʻIke palekana:

- 3,4-Difluorobenzoic acid he kemika a pono e hahai ʻia e like me nā kaʻina hana palekana kūpono a me nā lako pale kemika kūpono.

- He hopena hoʻonāukiuki paha ia ma ka maka, ka ʻili, a me ka ʻōpū hanu a pono e holoi koke ʻia ma hope o ka hoʻopili ʻana.

- I ka wā o ka mālama ʻana, pono e ʻalo ʻia ka hoʻopili ʻana me nā oxidants ikaika a me nā ʻakika ikaika i mea e pale ai i nā hopena pōʻino.

- 3,4-Difluorobenzoic acid pono e mālama i loko o kahi anuanu, maloʻo, maikaʻi-ventilated wahi, mai ke ahi a me ka wela kumu.

Mua: 4-Chloro-2-fluorotoluene（CAS# 452-75-5)

Aʻe: 3-Fluoroanisole（CAS# 456-49-5)

E kākau i kāu leka ma aneʻi a hoʻouna mai iā mākou