基本信息
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乙二胺四亚甲基膦酸
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1429-50-1
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乙二胺四甲叉膦酸;乙二胺四亚甲基膦酸;乙二胺四(甲基膦酸);乙二胺四亚甲基磷酸(钠);乙二胺四亚甲基磷酸;乙二胺四甲叉磷酸;阻垢剂 EDTMP,乙二胺四甲叉磷酸
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C6H20N2O12P4
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436.12
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Ethylenebis(nitrilodimethylene)tetraphosphonic acid
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215-851-5
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1.993 g/cm3
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Phosphonicacid, [1,2-ethanediylbis[nitrilobis(methylene)]]tetrakis- (9CI);Phosphonicacid, [ethylenebis(nitrilodimethylene)]tetra- (6CI,7CI,8CI);EDPA;EDTMP;EDTMPA;EDTPA;EDTPH;Editempa;Ethylenedi(nitrilodimethylene)tetraphosphonic acid;Ethylenediamine-N,N,N',N'-tetra(methylphosphonic acid);Ethylenediamine-N,N,N',N'-tetrakis(methylenephosphonic acid);Ethylenediaminetetra(methylenephosphonic acid);Ethylenediaminetetrakis(methylenephosphonic acid);Ethylenediaminetetrakis(methylphosphonic acid);Ethylenediaminetetramethylenephosphonate;Ethylenediaminotetra(methylenephosphonic acid);N,N,N',N'-Tetrakis(phosphonomethyl)ethylenediamine;Phosphonic acid, P,P',P'',P'''-(1,2-ethanediylbis(nitrilobis(methylene)))tetrakis-;[Ethylenebis(nitrilodimethylene)]tetraphosphonic acid;
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485.2oC
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247 °C
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878.7oC at 760 mmHg
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详细信息
本品是含氮有机多元膦酸，属阴极型缓蚀剂，与无机聚磷酸盐相比，缓蚀率高3~5倍。能与水混溶，无毒无污染，化学稳定性及耐温性好，在200℃下仍有良好的阻垢效果。在水溶液中能离解成8个正负离子，因而可以多个金属离子螯合，形成多个单体结构大分子网状络合物，松散地分散于水中，使钙垢正常结晶被破坏。EDTMPS对硫酸钙、硫酸钡垢的阻垢效果好。
