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2 3-DIBROMO-5-CHLORO PYRIDINE (CAS# 137628-17-2)

Waiwai Kemika:

ʻĀpana Molekala C5H2Br2ClN
Molar Mass 271.34
ʻO ka mānoanoa 2.136±0.06 g/cm3(Wanamua)
Lae hehee 41.0 a i 45.0 °C
Lae Boling 259.9±35.0 °C(Wanamua)
Lae Flash 111.004°C
Puʻupuʻu mahu 0.02mmHg ma 25°C
Ka nana aku He aniani melemele ʻeleʻele
pKa -3.85±0.20(Wanamua)
Kūlana Waihona Ka lewa inert, ka wela lumi
Hōʻike Hōʻike 1.62
MDL MFCD08687254

Huahana Huahana

Huahana Huahana

Pilikia a palekana

Nā Code Risk R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili.
R25 - He mea ʻawaʻawa inā ʻai ʻia
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 - E hoʻohana i nā mīkina lima kūpono.
S45 – Inā loaʻa ka pōʻino a i ʻole ka maikaʻi ʻole, e ʻimi koke i ka ʻōlelo aʻo kino (e hōʻike i ka lepili inā hiki.)
UN ID UN 2811 6.1 / PGIII
Papa Hazard HOOLAHA

2 3-DIBROMO-5-CHLORO PYRIDINE (CAS# 137628-17-2) hoʻolauna

ʻO 2,3-dibromo-5-chloropyridine kahi mea hoʻohuihui. ʻO kēia ka hoʻolauna ʻana i nā waiwai, hoʻohana, nā ʻano hoʻomākaukau, a me ka ʻike palekana o ka pūhui:

ʻano:
-Nani: 2,3-dibromo-5-chloropyridine he kala ʻole i ka paʻa melemele.
-Solubility: He haʻahaʻa haʻahaʻa i loko o ka wai.

Ke kumu:
ʻO 2,3-dibromo-5-chloropyridine ka nui o nā noi i ka synthesis organik, i hoʻohana nui ʻia ma nā wahi aʻe:
-Ma keʻano he photosensitizer, hiki ke hoʻohanaʻia i nā kula e like me ka paʻi a me ka hana kiʻi.

ʻano hana hana:
Hiki ke hana ʻia ke ʻano o ka hoʻomākaukau ʻana o 2,3-dibromo-5-chloropyridine ma o nā pae aʻe:
Ma lalo o nā kūlana kūpono, e hana i ka 2,3-dibromopyridine me ka phosphorus pentachloride e hana i ka 2,3-dibromo-5-chloropyridine pentachloride.
A laila, e hana i ka pentachloride me ka sodium hydroxide a i ʻole nā ​​hopena alkaline e loaʻa ai ka 2,3-dibromo-5-chloropyridine.

ʻIke palekana:
-ʻO ka hoʻohana ʻana a me ka hana ʻana o 2,3-dibromo-5-chloropyridine pono e hoʻokō ʻia i loko o kahi wahi e hoʻoheheʻe maikaʻi ʻia i mea e pale ai i ka ʻike lōʻihi i kona ʻala a lepo paha.
-I ka wā o ka hana, pono e ʻaʻahu ʻia nā mea pale kūpono, me nā mīkina lima pale kemika, nā maka aniani, a me nā lole pale.
ʻO -2,3-dibromo-5-chloropyridine no nā bromides organik a loaʻa kekahi mau mea ʻawaʻawa a me ka huhū. Pono e mālama ʻia a mālama pono ʻia e pale aku i ka pili ʻana me nā mea puhi ahi a me nā wela kiʻekiʻe.
-I ka hoʻohana ʻana a me ka hoʻokuʻu ʻana i kēia pūhui, e ʻoluʻolu e hahai i nā koi o nā kaʻina hana palekana a me nā kānāwai a me nā lula pili.


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