1. Ruaj khov nyob rau hauv qhov kub thiab txias thiab siab. Cov ntaub ntawv tsis sib xws: acids, alkalis, txo cov neeg sawv cev, oxidizing cov neeg sawv cev. Nws yog qeb tsawg-toxicity. Zam kev ua pa vapor thiab tiv tauj nrog daim tawv nqaij.
Tshuaj lom neeg cov khoom: nws yog ntshav thaum nws ntsib ferric chloride. Thaum hydrolyzed nrog dilute acid los yog dilute alkali, acetone, ethanol thiab carbon dioxide yog tsim. Raws li kev ua ntawm lub hauv paus muaj zog, ob lub lwg me ntawm cov acetic acid thiab ethanol yog tsim tawm. Thaum kev txo cov catalytic, β-hydroxybutyric acid yog tsim. Hauv cov tshiab distilled ethyl acetoacetate, cov ntawv enol ua account rau 7% thiab Ketone Daim Ntawv Account rau 93%. Thaum lub ethanol daws ntawm Ethyl acetoacetate tau txias rau -78 ° C, lub Ketone compound tau precipitated nyob rau hauv lub xeev crystalline. Yog hais tias cov sodium derivative ntawm Ethyl acetoacetate raug tshem tawm hauv dauv hydrogen chloride gas yog dhau ntawm -78 ° C, ib qho roj teeb sib txuas tuaj yeem tau txais.
2. Cov khoom no yog tsawg dua lom, piv qhov ncauj ld503.98G / kg. Tab sis nrog kev txob txob me thiab tshuaj loog, cov khoom siv tsim khoom yuav tsum raug kaw thiab zoo ventilated. Cov neeg ua haujlwm tau nruab nrog cov cuab yeej tiv thaiv.
