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3.亚硒酔R’ ç”Ÿäñ”厂家提醒不能与粮食、食物、种子、饲料、各¿Uæ—¥ç”¨å“æ·¯‚£…、æ؜˜qã€‚ 合成方法â€?1.¼‹’与¼‹é…¸ååº”生成亚硒酸和二氧化æÛåQŒé™¤åŽÖMºŒæ°§åŒ–氮后åQŒç”¨æ°¢æ°§åŒ–钠溶液中和åQŒç»åŠ çƒ­‹¹“羃、干燥研¼‚¨è€Œå¾—。â€?2.ž®†äº”水亚¼‹’酸钠Na2SeO3·5H2Oç”?0℃左右的òq²ç‡¥½Iºæ°”使其风干卛_Ş成Na2SeO3。或者按完全中和的计量比åQŒä‹É氢氧化钠与亚¼‹’酸的溶液æ؜合,然后åœ?0ï½?00℃的温度下蒸发浓¾~©ï¼Œæ­¤æ—¶å›_¯å½¢æˆæ— æ°´äºšç¡’é…”R’ çš„结晶。â€?3.ç”Þq¡’与硝酸生成氧化硒åQŒå†ä¸Žæ°¢æ°§åŒ–钠反应生成亚¼‹’酸钠,¾lå¹²ç‡¥ã€ç ”¼‚¨è€Œæˆã€?br /> <p> <br /> </p> <p> <br /> </p> <p> <img src="//www.thwwvt.com.cn/uploads/news/20181127035057.jpg" /> </p> <br /> 4.亚硒酔R’ ç”Ÿäñ”厂家提醒按理论量ž®†ä¸å«çŠ†â€‚犗 2åQâ€‚3 离子的氢氧化钠溶液加到亚硒酸浓溶液中进行反应:亚硒酔R’ ç”Ÿäñ”厂家提醒 所得溶液在氯化钙真½Iºå¹²ç‡¥å™¨å†…于室温下除åŽÀL°´åˆ†ï¼Œòq¶åŠ å…¥æ™¶¿Uä‹É¾l“晶析出åQŒç»æŠ½æ×o后,于干燥器中干燥,卛_¾—亚硒酔R’ æ°´åˆç‰©ã€‚将所得反应液äº?0ï½?00℃下蒸发、结晶、脱水、干燥,卛_¯å¾—无水亚¼‹’é…¸é’?br /> <br /> <br /> 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