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2 5-Dibromo-3-methylpyridine(CAS# 3430-18-0)

Waiwai Kemika:

ʻĀpana Molekala C6H5Br2N
Molar Mass 250.92
ʻO ka mānoanoa 1.9318 (manaʻo koʻikoʻi)
Lae hehee 43-47 °C (māmā)
Lae Boling 114 °C / 6mmHg
Lae Flash >230°F
Ka hoʻoheheʻe hiki ke hoʻoheheʻe ʻia i ka Methanol
Puʻupuʻu mahu 0.0203mmHg ma 25°C
Ka nana aku Pauda keʻokeʻo
kala kala Keʻokeʻo keʻokeʻo i ka beige
pKa -1.27±0.20(Wānana ʻia)
Kūlana Waihona ma lalo o ke kinoea inert (nitrogen a i ʻole Argon) ma 2-8°C
Hōʻike Hōʻike 1.6300 (manaʻo)
MDL MFCD02093085

Huahana Huahana

Huahana Huahana

Nā Code Risk R22 – Poino ke aleia
R36/38 – Hoʻonanea i ka maka a me ka ʻili.
R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili.
R20/21/22 – He pōʻino ma ka inhalation, pili me ka ʻili a inā ale 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.
S36/37/39 – E hoʻohana i nā lole pale kūpono, nā mīkina lima a me ka pale maka/maka.
S36 – E komo i nā lole pale kūpono.
UN ID UN 2811 6.1/PG 3
WGK Kelemānia 3
HS Code 29333990
Papa Hazard 6.1
Hui Pūʻulu III

 

Hoʻolauna

ʻO ka 2,5-Dibromo-3-trimethylpyridine kahi hui kūlohelohe. ʻO kēia ka hoʻolauna ʻana i kekahi o kāna mau waiwai, hoʻohana, hana hana a me ka ʻike palekana.

 

ʻAno maikaʻi:

- Ke ʻano: 2,5-Dibromo-3-trimethylpyridine he wai kala ʻole i ka ʻeleʻele melemele.

- Solubility: Hiki ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe kūlohelohe, e like me ka ethanol, acetone, a me ka dimethyl sulfoxide.

- Paʻa: Paʻa ia i ka māmā a me ka wela, akā hiki ke decomposition ma lalo o nā kūlana alkaline ikaika.

 

E hoʻohana:

- Ma ke ʻano he catalyst: hiki ke hoʻohana ʻia ka 2,5-dibromo-3-trimethylpyridine ma ke ʻano he brominating agent e hoʻokalakupua i kekahi mau mea kūlohelohe, e like me ka nucleophilic substitution, oxidation, a me ka condensation.

- Organic synthesis: Hiki ke hoʻohana ʻia ma ke ʻano he waena i ka synthesis o nā pūhui organik, ʻoi aku hoʻi no nā pūhui i loaʻa nā hui ketone a i ʻole aldehyde.

- Nā mea pena kiʻi kiʻi: Hiki ke hoʻohana ʻia i ka hoʻomākaukau ʻana i nā mea pena kiʻi kiʻi.

 

Hanana:

Ma keʻano laulā, hiki ke hoʻomākaukau ʻia ka 2,5-dibromo-3-trimethylpyridine e ka hopena bromination me ka bromine e like me ka reactant i ka ʻōnaehana hopena o trimethylpyridine. Hiki ke hoʻoholo ʻia nā kūlana hoʻololi i kēlā me kēia hihia, akā pono e mālama ʻia no ka hana palekana.

 

ʻIke palekana:

- ʻO 2,5-Dibromo-3-trimethylpyridine ka mea ʻino i ka ʻili a me nā maka a pono e pale ʻia i ka pilina pololei.

- E hoʻohana i nā maka maka, nā mīkina lima a me nā lole pale i ka wā e hoʻohana ai.

- E hana i loko o kahi ea maikaʻi a pale i ka hoʻohu ʻana i kona mahu.

- Hōʻalo i ka hoʻopili ʻana me nā mea oxidizing ikaika, hiki ke hana i nā hopena weliweli.

- Pono e hoʻolei ʻia ka ʻōpala e like me nā kānāwai kūloko.


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