4-D-涓侀叝 &#8211; 鏈夋満閿?/title> <atom:link href="//9my.com.cn/archives/tag/4-d-%E4%B8%81%E9%85%AF/feed" rel="self" type="application/rss+xml" /> <link>//9my.com.cn</link> <description>鏈夋満閿?/description> <lastBuildDate>Tue, 22 Oct 2024 08:13:28 +0000</lastBuildDate> <language>zh-CN</language> <sy:updatePeriod>hourly</sy:updatePeriod> <sy:updateFrequency>1</sy:updateFrequency> <generator>//wordpress.org/?v=4.9.26</generator> <item> <title>2,4-D-涓侀叝 //9my.com.cn/archives/487 Mon, 06 May 2024 06:33:41 +0000 //9my.com.cn/archives/487 2,4-D-丁酯l构?></p>
<p>l构?/p>
<table class= 物竞~号 0286 分子?/th> C12H14Cl2O3 分子?/th> 277.14 标签

2,4-D丁酯(ji),

2,4-丁酯,

2,4-二氯氧丁?

2,4-二氯氧正丁(xing)(ji),

2,4-滴(cui)(huai)?

Fernesta,

Lironox,

Butapon,

除草?/p>

~号pȝ

CASP94-80-4

MDLPMFCD00126845

EINECSP202-364-8

RTECSPAG8050000

BRNP2056085

PubChemP24869301

物性数?/h2>

1.      性状Q纯品ؓ无色油状液体Q原油ؓ褐色液体?/p>

2.      密度Q(ben)g/mL,20)Q(ben)?.2428

3.      相对蒸汽密度Qg/mL,I气=1Q:未确?/p>

4.      熔点QºCQ:9

5.      沸点QºC,常压Q:146?/span>147

6.      沸点Q(kong)C,0.266KPaQ:169

7.      折射率:未确?/p>

8.      闪点QºCQ:>79

9.      (jiao)旋(wei)度Qº)Q未定

10.   自燃Ҏ引燃温度QºCQ:未确?/p>

11.   蒸气压(mmHg,ºCQ:未确?/p>

12.   饱和蒸气压(kPa, ºCQ:未确?/p>

13.   燃烧热(KJ/molQ:未确?/p>

14.   临界温度QºCQ:未确?/p>

15.   临界压力QKPaQ:未确?/p>

16.   ҎQ辛?_分配pL的对数|未确?/p>

17.   爆炸上限Q?,V/VQ:未确?/p>

18.   爆炸下限Q?,V/VQ:未确?/p>

19.   溶解性:(xi)难溶于水Q(ben)易溶于多(dong)有机溶剂(mo)?/p>

毒理学数?/h2>

1?nbsp;  急性毒性:大鼠l口LD50Q?00?000mg/kg

(hao)(fan)l口(yi)LD5OQ?75mg/kg

家兔?/span>LD5OQ?400mg/kg

鲤鱼LC5OQ?0mg/L(48h)

 

生态学数据

(xuan)物质对环境有危宻I(ren)不要让其q(si)环境。应特别(ping)意(sheng)(fen)Ҏ(gui)体的污染? 

分子l构数据

1(mo)?nbsp; 摩尔折射(dui)(jun)67.63

2?nbsp; 摩尔体积Qcm3/molQ(ben):226.2

3?nbsp; {张比容Q(ben)?0.2KQ(ben):554.2

4?nbsp; 表面(liao)力Q(ben)dyne/cmQ(ben):36.0

5?nbsp; 极(huo)率((zhi)10-24cm3Q(duo)26.81

计算化学数据

1.疏水参数(kai)计算参考|XlogPQ(ben)??/P>

2.(pin)键供体数量:0

3.(pin)键受(zhan)数量():3

4.可旋转化(ying)键(suo)量:7

5.互变异构体数??/p>

6.拓扑分子极性表面积35.5

7.重原子数?17

8.表面()荷(yu):0

9.复(cao)?236

10.同(wu)素原(shi)子数?0

11.定原子立构(ying)中心数(ban):0

12.不确定(ya)子立构中心(xie)?0

13.定化学键立构中(fu)心数(yue)?0

14.不确定化(ying)键(yang)立构中心数量:0

15.(wei)׃h键单(yin)(wei)数?1

性质与稳定?/h2>

避免与氧化(jian)、碱cL(hui)(nao)?/p>

贮存Ҏ

储存于阴凉()(xing)风(fei)(fei)(fan)(xi)ѝ(ku)远ȝU(zhou)(zhou)(zhan)热源。防(gui)止阳光直。保(liao)持(huo)器密(bing)应与氧化剂(mo)(mo)碱cd(hui)(ke)开存放Q(ben)切忌؜储。冬(chan)要做好(qu)冻(chen)作(hu)Q(ben)(yue)(gui)止冻l。配(li)(chan)相应品U(zhou)(zhou)和(nin)数量(fei)(fei)消(zhi)(qu)器(shou)。储区应(chan)有泄漏(fang)应急处理设(chan)和(nin)合适(yao)收容(shou)料(mo)(mo)?

合成Ҏ

1.首先由酚氯化生成2,4-二氯酚,l碱溶液中和后与氯钠q行~合反应Q生?,4-D钠盐Q酸化后再与丁醇q行酯化反应卛_。原料消耗定额:?80kg/t、氯510kg/t、丁?20kg/t、液?20kg/t、盐酸(30%Q?20kg/t、液(?00%Q?30kg/t?/p>

2. 2,4-滴(cun)(qing)(yang)(yang)成(wei)合(hao)成酚(si)钠(bo)(ya)氯钠Q(ben)然(yang)(yang)两者羃(yang)(yang)(yu)(ren)反应(pai)?10?20℃下q(ma)行Q(ben)(han)应过(beng)E维持溶液微性,(ren)一氯醋(yan)怸(ya)(yan)投料比1?.16。(yao)(yang)(yang)进行氯(ai)(chen)反应,(ren)以氯(ai)气ؓ氯化(ji),(ren)反应(pai)温度92?8℃?/span>

3. 2,4-滴丁酯的合成湿2,4-滴在搅拌(juan)加入至(yue)量(juan)(xing)(juan),(ren)(ren)(ti)温(fu)?20?40℃(jian)(ren)(ren)保持(shi)4hQ(ben)充(rou)脱_(ren)(ren)(juan)(xing)回流(mo)待(rou)离(zhao)水(wei)不(zhen)再上(ti)时(lu)Q(ben)停(gan)止回(xian)(guang)(ren)(ren)(ti)温(fu)?60?70℃(jian)(ren)(ren)减压蒸出(juan)(xing)(mo)?/span>

用?/h2>

1.用作农用除草剂?/p>

2.q(kua)(hao)(hao)、(gui)素型(yao)草(min)剂,(lian)良好的展着(hao)(hao)和内(yi)(hao)(hao)。通常()(())于水田和麦()(())等Q主要(xing)(gui)(yao)禾(lian)科作物(yi)()(())C的双子叶杂草(min)(mo)(mo)(huo)(hao)(hao)莎U及(qiang)(mo)些恶性杂草,如鸭舌()(min)(mo)(mo)(quan)子菜(mo)(mo)(huo)三棱草、(ci)(mo)(mo)(quan)(lian)麦娘(mo)(mo)(ci)(hun)草(xing)苋、(ci)(hun){?/span>

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