羟基乙叉二膦酸 HEDP

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羟基乙叉二膦酸&nbsp;&nbsp;HEDP<br />1-Hydroxy Ethylidene-1,1-Diphosphonic Acid<br />【CAS】 2809-21-4<br />别名：羟基亚乙基二膦酸&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;Dequest 2010<br />分子式&nbsp; &nbsp;&nbsp;&nbsp;C2H8O7P2&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; 相对分子质量：206.02<br />一、HEDP产品性能<br />HEDP是一种有机磷酸类阻垢缓蚀剂，能与铁、铜、锌等多种金属离子形成稳定的络合物，能溶解金属表面的氧化物。在250℃下仍能起到良好的缓蚀阻垢作用，在高pH值下仍很稳定，不易水解，一般光热条件下不易分解。耐酸碱性、耐氯氧化性能较其它有机磷酸（盐）好。可与水中金属离子，尤其是钙离子形成六圆环螯合物，因而具较好的阻垢效果并具明显的溶限效应，当和其它水处理剂复合使用时，表现出理想的协同效应。<br />HEDP固体属于高纯产品，适用于冬季严寒地区；特别适用于电子行业的清洗剂和日用化学品添加剂。<br />二、HEDP质量指标&nbsp;&nbsp;<br />项&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;目&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; 指&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;标<br />&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; HG/T 3537-1999 -<br />外&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;观&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;无色或淡黄色透明液体 白色粉末状固体<br />活性组分（以HEDP计）％&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; ≥ 50.0&nbsp; &nbsp;&nbsp; &nbsp; 60.0&nbsp; &nbsp;&nbsp;&nbsp;89.0<br />亚磷酸（以PO33-计）%&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;≤ 2.0&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;2.0&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;0.80<br />磷酸（以PO43-计）%&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;≤ 0.8&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;0.8&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;0.50<br />氯化物 （以Cl-计）%&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; ≤ 1.0&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;1.0&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;0.10<br />PH值（1％水溶液）&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;≤&nbsp;&nbsp;2&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; 2&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; 2.0<br />密度（20℃）g/cm3&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;≥ 1.34&nbsp; &nbsp; 1.40&nbsp; &nbsp;&nbsp; &nbsp; ——<br />铁离子&nbsp; &nbsp; ppm&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;≤ 10&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;10&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;5.0<br />活性组份（以HEDP.H2O计） %&nbsp; &nbsp;≥ ——&nbsp; &nbsp;&nbsp; &nbsp; ——&nbsp; &nbsp;&nbsp; &nbsp;98.0<br />三、HEDP应用范围与使用方法<br />HEDP广泛应用于电力、化工、冶金、化肥等工业循环冷却水系统及中、低压锅炉、油田注水及输油管线的阻垢和缓蚀；在轻纺工业中，可以作金属和非金属的清洗剂，漂染工业的过氧化物稳定剂和固色剂，无氰电镀工业的络合剂。HEDP作阻垢剂一般使用浓度1~10mg/L，作缓蚀剂一般使用浓度10-50mg/L；作清洗剂一般使用浓度1000~2000mg/L；通常与聚羧酸型阻垢分散剂配合使用。<br />四、HEDP包装与贮存<br />HEDP液体为塑料桶包装，每桶30Kg或250Kg；HEDP固体内衬聚乙烯袋的塑料编织袋包装，每袋净重25kg，也可根据用户需要确定。贮于室内阴凉通风处，防潮，贮存期十个月。<br />五、HEDP安全防护<br />HEDP为酸性，应避免与眼睛、皮肤接触，一旦溅到身上，应立即用大量水冲洗。<br /><br /><br /><table cellspacing="0" width="417" align="center" class="t_table"><tr><td width="202"><font size="3"><font color="#000000"><font face="宋体 ">联 系 人：崔晋<br /></font></font></font></td><td width="215"><a href="http://www.chinadada.com/" target="_blank"><font face="宋体 "><font size="3"><font color="#000000"></font></font></font></a></td></tr><tr><td colspan="2"><font face="宋体 "><font size="3"><font color="#000000">电<br />话：0632－5113088，3460157，3460158，5113066</font></font></font></td></tr><tr><td colspan="2"><font face="宋体 "><font size="3"><font color="#000000">公司主页：<a href="http://www.th-water-treatment.com" target="_blank">www.th-water-treatment.com</a></font></font></font></td></tr><tr><td colspan="2"><font size="3"><font color="#000000"><font face="宋体 "><br />www.th-chem.com</font></font></font></td></tr><tr><td><font size="3"><font color="#000000"><font face="宋体 "><br />www.thchem.cn</font></font></font></td><td><a href="http://www.cg180.com/" target="_blank"><font face="宋体 "><font size="3"><font color="#000000"></font></font></font></a></td></tr><tr><td><font size="3"><font color="#000000"><font face="宋体 "><br />www.thchem.com</font></font></font></td><td><a href="http://www.clii.com.cn/" target="_blank"><font face="宋体 "><font size="3"><font color="#000000"></font></font></font></a></td></tr><tr><td colspan="2"><font size="3"><font color="#000000"><font face="宋体 "><br />www.taihe-water.com</font></font></font></td></tr><tr><td colspan="2"><font size="3"><font color="#000000"><font face="宋体 "><br />www.thwater.net</font></font></font></td></tr></table><br /><br />[<i> 本帖最后由 sdthscl 于 2007-7-27 09:09 编辑 </i>]