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370590075: ½ð±Ò+5, ·­ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, лл£¡ 2013-04-16 20:33:05
Abstract:Toluidine Name :4-Toluidine, important intermediates for dyes, pharmaceuticals and pesticides.Preparation of methyl aniline nitro toluene, sodium sulfide, sulfur as raw material.From reaction time, sodium polysulfide solution dropping time, the reaction temperature, the optimization of material ratio Studying  the optimization conditions of reaction .Optimal conditions: reaction materials: Sodium: sulfur: nitrotoluene = 1:2:1.5 (molar ratio),The reaction temperature was controlled at about 85 ¡æ, dropping time 1.5h, the reaction time is 2h.Reaction under the above conditions can be obtained in a high yield.
Key words :Toluidine; nitro toluene; sulfide; optimal conditions
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