Ethyl 4 4-difluorovalerate（CAS# 659-72-3)
| Nā hōʻailona pōʻino | Xn – Poino |
| Nā Code Risk | R10 – Hiki ke ahi R18 – I ka hoʻohana ʻana, hiki ke hana ʻia ka hui ʻana o ka mahu a pahū R20/22 – He pōʻino ma ka inhalation a inā ale ʻia. R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili. |
| Ka wehewehe palekana | 26 - Inā pili me nā maka, holoi koke me ka wai nui a ʻimi i ka ʻōlelo aʻoaʻo olakino. |
| UN ID | UN 3272 3 / PGIII |
| WGK Kelemānia | 3 |
Hoʻolauna
ʻO ka Ethyl 4,4-difluoropentanoate, ke kumu hoʻoheheʻe kemika C6H8F2O2, he mea hoʻohuihui. Eia ka wehewehe ʻana o kona ʻano, hoʻohana, hoʻomākaukau a me ka ʻike palekana.
ʻAno:
-Nani: wai kala ʻole
-Molecular kaumaha: 146.12g/mol
-Ka Lae paila: 142-143°C
-Ka mānoanoa: 1.119 g/mL
-Solubility: Hiki ke hoʻoheheʻe ʻia i loko o ka wai
-Stability: paʻa, akā hiki ke maʻalahi i ka māmā, ka wela, nā mea ʻokiʻoki a me nā waikawa
E hoʻohana:
-ʻO Ethyl 4,4-difluoropentanoate he mea koʻikoʻi koʻikoʻi koʻikoʻi koʻikoʻi koʻikoʻi, he nui nā mea hoʻohana i ka lāʻau lapaʻau, pesticide a me ka ʻoihana dye. Hiki ke hoʻohana ʻia ma ke ʻano he precursor no ka synthesis o nā lāʻau lapaʻau, nā pesticides a me nā dyes, a me ka hoʻomākaukau ʻana i nā mea hoʻohui ʻē aʻe.
- 4,4-difluoropentanoic acid ethyl ester hiki ke hoʻohana ʻia e like me ka solvent, esterification reagent a me ka catalyst i ka synthesis organik.
Kaʻina hoʻomākaukau:
ʻO ka hoʻomākaukau ʻana i ka ethyl 4,4-difluoropentanoate e hana maʻamau ʻia e nā ʻanuʻu aʻe:
1. ʻO ka mua, hoʻopili ʻia ka waikawa pentanoic me ka sulfur difluoride e loaʻa ai ka 4,4-difluoropentanoic acid.
Hoʻopili ʻia ka 2.4,4-difluoropentanoic acid me ka ethanol ma lalo o nā kūlana acidic e hana i ka ethyl 4,4-difluoropentanoate.
ʻIke palekana:
- 4,4-difluoropentanoic acid ethyl ester he wai lapalapa, mālama a mālama pono i ka hana e pale i ke ahi a me ka lapalapa ahi.
-pono e hoʻohana i nā aniani pale a me nā mīkina lima, e pale i ka pili ʻana me ka ʻili a me ka inhalation o kona mahu.
-E hana ma kahi wahi e hoʻoheheʻe maikaʻi ʻia e pale aku i ke komo ʻana i ka ʻōnaehana hanu.
-Inā hoʻopaʻa wale ʻia a lawe hewa paha, holoi koke me ka wai nui a ʻimi koke i ke kauka.
