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huahana

methyl 5-methyl-1H-pyrazole-3-carboxylate(CAS# 25016-17-5)

Waiwai Kemika:

ʻĀpana Molekala C6H8N2O2
Molar Mass 140.14
ʻO ka mānoanoa 1.217±0.06 g/cm3(Wānana ʻia)
Lae hehee 82-84°
Lae Boling 289.3±20.0 °C(Wānana ʻia)
Lae Flash 128.8°C
Puʻupuʻu mahu 0.00222mmHg ma 25°C
pKa 11.60±0.10(Wanamua)
Kūlana Waihona ma lalo o ke kinoea inert (nitrogen a i ʻole Argon) ma 2-8 °C
Hōʻike Hōʻike 1.526
MDL MFCD03778987

Huahana Huahana

Huahana Huahana

WGK Kelemānia 3
Papa Hazard HOOLAHA

 

Hoʻolauna

ʻO ka methyl he pūhui olaola me ke ʻano mole mole C7H8N2O2 a me ke kaumaha molekala o 148.15g/mol. He wai kala ʻole me kahi ʻala kūikawā.

 

Hoʻohana maʻamau ʻia kēia pūhui ma ke kahua o nā lāʻau lapaʻau synthetic, pesticides a me nā kala. Hiki ke hoʻohana ʻia ma ke ʻano he waena no ka synthesis o nā mea hoʻohui ʻē aʻe, e like me: synthetic insecticide dimethicarb.

 

Loaʻa ʻia ke ʻano o ka hoʻomākaukau ʻana i ka methyl ma ka hopena esterification. ʻO ke ʻano kikoʻī, ʻo ia ka hana ʻana i ka 5-methyl pyrazole-3-carboxylic acid me ka methanol, i mua o kahi catalyst kūpono, e loaʻa ai ka huahana i makemake ʻia.

 

E pili ana i ka ʻike palekana, ʻo ka methyl he wai hiki ke ahi a pono e mālama ʻia mai nā lapalapa ākea a me nā wela kiʻekiʻe. I ka wā o ka hoʻohana ʻana a me ka mālama ʻana, pono e mālama ʻia e pale aku i ka pili ʻana me ka ʻili, nā maka a me ka ʻōpū hanu. I ka manawa like, pono e hoʻohana ka hana i nā mea pale kūpono, e like me nā mīkina lima, nā maka aniani a me ka pale pale. Inā komo a inhaled, e ʻimi koke i ka lāʻau lapaʻau.


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