三氯化镧_FU试剂

三氯化镧

三氯化镧|10025-84-0

货品编号：

C26664-25kg

品牌：

FU试剂

商品详情

品牌：FU试剂
所属分类：专用试剂
商品编号：G6189CCDE249C9

<table cellpadding="0" cellspacing="0" width="100%" height="38" style="margin: 0px 0px 10px; padding: 0px; border-collapse: collapse; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; text-align: center;"><tbody style="margin: 0px; padding: 0px;"><tr height="19" style="margin: 0px; padding: 0px; height: 14.25pt;"><td height="14" x:str="" style="margin: 0px; padding: 5px 10px; border-width: 1px; border-style: solid; border-color: rgb(221, 221, 221);">货号</td><td x:str="" style="margin: 0px; padding: 5px 10px; border-width: 1px; border-style: solid; border-color: rgb(221, 221, 221);">CAS</td><td x:str="" style="margin: 0px; padding: 5px 10px; border-width: 1px; border-style: solid; border-color: rgb(221, 221, 221);">产品名称</td><td x:str="" style="margin: 0px; padding: 5px 10px; border-width: 1px; border-style: solid; border-color: rgb(221, 221, 221);">含量</td></tr><tr height="19" style="margin: 0px; padding: 0px; height: 14.25pt;"><td height="14" x:str="" style="margin: 0px; padding: 5px 10px; border-width: 1px; border-style: solid; border-color: rgb(221, 221, 221);"><a target="_blank" href="http://www.forneeds.cn/index.php/product-583245.html" textvalue="C26664-25kg" linktype="text" imgurl="" tab="outerlink" data-linktype="2" _href="http://www.forneeds.cn/index.php/product-583245.html" style="margin: 0px; padding: 0px; color: rgb(87, 107, 149);">C26664-25kg</a></td><td x:str="" style="margin: 0px; padding: 5px 10px; border-width: 1px; border-style: solid; border-color: rgb(221, 221, 221);">[10025-84-0]</td><td x:str="" style="margin: 0px; padding: 5px 10px; border-width: 1px; border-style: solid; border-color: rgb(221, 221, 221);">三氯化镧</td><td x:num="0.9995" style="margin: 0px; padding: 5px 10px; border-width: 1px; border-style: solid; border-color: rgb(221, 221, 221);">99.95%</td></tr></tbody></table>
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<img src="http://www.forneeds.cn/public/images/01/55/3c/5887e826a97a4efcb2dca14b4a3b4666820de3a0.png?1636421403#h"></div> 
<div><p style="margin: 15px 0px 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit; font-size: 14px; letter-spacing: 1.5px; line-height: 2.3em;">磷是所有的生物生长所需的重要元素。自然界中, 磷元素很少，但人类排放的含磷洗涤剂污水进入湖泊之后, 会使湖中的藻类获得丰富的营养而急剧增长(称为水体富营养化)。
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">疯长的藻类在水面越长越厚,
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">终于有一部分被压在了水面之下,
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">因难见阳光而死亡。
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">湖底的细菌以死亡藻类作为营养,
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">迅速增殖。
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; text-align: center; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">大量增殖的细菌消耗了水中的氧气,
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">使湖水变得缺氧,
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">依赖氧气生存的鱼类死亡,
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">随后细菌也会因缺氧而死亡,
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">最终是湖泊老化、死亡。
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">可对热带地区的海滨水域造成与上述情况相似的水体富营养化的威胁。
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">为了控制海藻疯长，必须要控制污水中磷的含量。
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">
<p style="margin: 0px; padding: 0px; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; caret-color: rgba(0, 0, 0, 0); vertical-align: inherit;">三氯化镧与游离磷酸盐直接化学反应形成水不溶性磷酸镧。这种反应几乎是瞬间的，因此除磷效果最快。由于反应太快，如果使用不当，很容易造成磷酸盐过低。剩余的氯化镧溶液总是在水中并继续与随后的磷酸盐反应。过量使用 氯化镧不仅可以让珊瑚快速白化，而且剩余的游离镧对神经有毒并导致生物死亡。
<p style="margin: 15px 0px; padding: 0px; clear: both; min-height: 1em; font-size: 17px; caret-color: rgba(0, 0, 0, 0); text-align: justify; box-sizing: border-box; border-width: 0px; border-style: initial; border-color: initial; vertical-align: baseline; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: 28px; word-break: break-all; color: rgb(34, 34, 34); font-family: PingFangSC, Helvetica, Arial, SimHei, sans-serif;">氯化镧去磷不仅速度快，而且价格便宜。如果使用得当，它是一种非常方便和廉价的磷酸盐去除剂。
<p style="margin: 15px 0px; padding: 0px; clear: both; min-height: 1em; font-size: 17px; caret-color: rgba(0, 0, 0, 0); text-align: justify; box-sizing: border-box; border-width: 0px; border-style: initial; border-color: initial; vertical-align: baseline; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: 28px; word-break: break-all; color: rgb(34, 34, 34); font-family: PingFangSC, Helvetica, Arial, SimHei, sans-serif;">首先，让我们看一下“氯化镧”分析中去除的磷酸盐量。根据公式：
<p style="margin: 15px 0px; padding: 0px; clear: both; min-height: 1em; font-size: 17px; caret-color: rgba(0, 0, 0, 0); text-align: justify; box-sizing: border-box; border-width: 0px; border-style: initial; border-color: initial; vertical-align: baseline; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: 28px; word-break: break-all; color: rgb(34, 34, 34); font-family: PingFangSC, Helvetica, Arial, SimHei, sans-serif;">LaCl3 + Na3PO4（水溶） --> LaPO4（水不溶） + 3NaCl
<p style="margin: 15px 0px; padding: 0px; clear: both; min-height: 1em; font-size: 17px; caret-color: rgba(0, 0, 0, 0); text-align: justify; box-sizing: border-box; border-width: 0px; border-style: initial; border-color: initial; vertical-align: baseline; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: 28px; word-break: break-all; color: rgb(34, 34, 34); font-family: PingFangSC, Helvetica, Arial, SimHei, sans-serif;">可以方便地计算出，对于100L水，只需要几毫克三氯化镧就可以减少0.01ppm的磷酸盐。
<p style="margin: 15px 0px; padding: 0px; clear: both; min-height: 1em; font-size: 17px; caret-color: rgba(0, 0, 0, 0); text-align: justify; box-sizing: border-box; border-width: 0px; border-style: initial; border-color: initial; vertical-align: baseline; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: 28px; word-break: break-all; color: rgb(34, 34, 34); font-family: PingFangSC, Helvetica, Arial, SimHei, sans-serif;">现实中毫克级不容易称量准确，为了不让氯化镧过量，所以采用稀释的手段来有效的控制三氯化镧的加入量，所以市面上出售的除藻水都是三氯化镧的稀释剂。
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