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huahana

3-Acetyl pyridine(CAS#350-03-8)

Waiwai Kemika:

ʻĀpana Molekala C7H7NO
Molar Mass 121.14
ʻO ka mānoanoa 1.102 g/mL ma 25 °C (kukui.)
Lae hehee 11-13 °C (kukui)
Lae Boling 220 °C (māmā)
Lae Flash 302°F
Helu JECFA 1316
Hiki i ka wai HOOLAHA I KA WAI WELA
Puʻupuʻu mahu 0.3Pa ma 20 ℃
Ka nana aku wai ʻaʻa
Kaumaha Kūikawā 1.102
kala kala ʻAʻole kala ʻole i ka melemele
ʻO Merck 14,6116
BRN 107751
pKa pK1: 3.256(+1) (25°C)
PH 6.5-7.5 (H2O, 20 ℃)
Kūlana Waihona Ka lewa inert, ka wela lumi
Hōʻike Hōʻike n20/D 1.534(māmā)
MDL MFCD00006396
Na Waiwai Kino a Kimia kala ole i ka wai melemele
mānoanoa 1.102
helu hehee 12-13°C
wahi hoʻolapalapa 220°C
helu hoʻopaʻapaʻa 1.5326-1.5346
kiko uila 104°C
WAI-HELE I KA WAI wela
Hoʻohana Hoʻohana ʻia ma ke ʻano he waena o ka sodium risedronate no ka mālama ʻana i ka osteoporosis; Pesticide waena

Huahana Huahana

Huahana Huahana

Nā Code Risk R25 - He mea ʻawaʻawa inā ʻai ʻia
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 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.)
S37/39 – E hoʻohana i nā mīkina lima kūpono a me ka pale maka/maka
S28A -
S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
S36 – E komo i nā lole pale kūpono.
UN ID UN 2810 6.1/PG 3
WGK Kelemānia 3
RTECS OB5425000
NUI FLUKA BRAND F 8-10
TSCA ʻAe
HS Code 29333999
Nānā Hazard Hoʻonanea
Papa Hazard 6.1
Hui Pūʻulu II
Kaʻawaʻawa LD50 orl-iole: 46 mg/kg JACTDZ 1,681,92

 

Hoʻolauna

ʻO 3-Acetylpyridine kahi mea hoʻohuihui. ʻO kēia ka hoʻolauna ʻana i kekahi o nā waiwai, hoʻohana, nā ʻano hoʻomākaukau a me ka ʻike palekana o 3-acetylpyridine:

 

ʻAno maikaʻi:

ʻAno: 3-acetylpyridine ʻaʻole waihoʻoluʻu i nā kristal melemele māmā a i ʻole nā ​​​​mea paʻa.

Solubility: 3-acetylpyridine hiki ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe organik e like me nā ʻawaʻawa, nā etera a me nā ketones, a hiki ke hoʻoheheʻe iki ʻia i ka wai.

Nā Waiwai Kemika: ʻO ka 3-Acetylpyridine he mea ʻawaʻawa nāwaliwali i ʻakika i ka wai.

 

E hoʻohana:

E like me ke kinikini synthesis organik: 3-acetylpyridine ke hoʻohana mau ʻia i nā hopena synthesis organik e like me ka solvent, acylation reagent, a me ka catalyst.

Hoʻohana ʻia i ka synthesis dye: hiki ke hoʻohana ʻia ka 3-acetylpyridine i ka synthesis o nā mea hoʻonaninani a me nā puaʻa.

 

Hanana:

Nui nā ala e hoʻomākaukau ai i ka 3-acetylpyridine, a loaʻa ka mea maʻamau e ka esterification reaction o stearic anhydride a me pyridine. Ma keʻano laulā, hoʻopili ʻia ka stearic anhydride a me ka pyridine i loko o kahi mea hoʻoheheʻe ma ka ratio molar o 1: 1, a hoʻohui ʻia kahi catalyst acid keu i ka wā o ka hopena, a hoʻokō ʻia kahi hopena esterification thermodynamically controlled. Ua loaʻa ka huahana 3-acetylpyridine ma ka crystallization, kānana, a me ka maloʻo.

 

ʻIke palekana:

Pono e mālama a mālama ʻia ka 3-Acetylpyridine ma ke ʻano e pale aku ai i ka hoʻopili ʻana me nā mea oxidants e pale i ke ahi a pahū paha.

E hahai i nā hana palekana laboratory a e hoʻohana i nā mea pale kūpono e like me nā mīkina lima, nā maka aniani, a me nā ʻaʻahu ke hoʻohana.

Hōʻalo i ka inhalation, ingestion, a i ʻole pili me ka ʻili a me nā maka, a e hoʻāʻo e hana ma kahi wahi i hoʻoluʻu maikaʻi ʻia.

Pono e mālama i ka pale ʻana i ka lepo a me nā ʻāpana i ka wā e lawelawe ai i ka 3-acetylpyridine e hōʻemi i ka pilikia o ka inhalation.


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