1. Paʻa ma lalo o ka mahana maʻamau a me ke kaomi.ʻO nā mea kūpono ʻole: nā waikawa, nā alkali, nā mea hoʻohaʻahaʻa, nā mea hoʻoneʻe.He ʻano haʻahaʻa ʻona.E pale i ka hanu ʻana i ka mahu a me ka pili ʻana me ka ʻili.
Nā waiwai kemika: He poni ke hui me ka ferric chloride.Ke hoʻoheheʻe ʻia me ka dilute acid a i ʻole dilute alkali, hana ʻia ka acetone, ethanol a me carbon dioxide.Ma lalo o ka hana a kahi kumu ikaika, hana ʻia ʻelua mau mole o ka acetic acid a me ka ethanol.Ke hoʻemi ʻia ka catalytic, hoʻokumu ʻia ka β-hydroxybutyric acid.I loko o ka ethyl acetoacetate hou i hoʻoheheʻe ʻia, ʻo ke ʻano enol he 7% a ʻo ke ʻano ketone he 93%.I ka wā i hoʻomāʻalili ʻia ka hopena ethanol o ka ethyl acetoacetate i -78 ° C, ua hoʻoheheʻe ʻia ka hui ketone ma kahi kūlana crystalline.Inā hoʻokuʻu ʻia ka derivative sodium o ka ethyl acetoacetate i ka dimethyl ether a hoʻemi iki ʻia ka nui o ke kinoea hydrogen chloride maloʻo maloʻo ma -78°C, hiki ke loaʻa kahi hui enol ʻaila.
2. ʻAʻole ʻawaʻawa kēia huahana, waha iole LD503.98g/kg.Akā me ka huhū haʻahaʻa a me ka anesthesia, pono e hoʻopaʻa ʻia nā mea hana a hoʻopaʻa maikaʻi ʻia.Hoʻolakoʻia nā mea hana me nā mea pale.
