一、性能與用途:
常溫下EDTMPA為白色結晶性粉末,熔點215-217℃,微溶於水,在室溫下溶解度小於5%,易溶於氨水。 EDTMPA具有很強的螯合金屬離子的能力,與銅離子的絡合常數是包括EDTA在內的所有螯合劑中最大的。EDTMPA為高純試劑且無毒,在電子行業可作為半導體晶片的清洗劑用於製造積體電路;在醫藥行業作放射性元素的攜帶劑,用於檢查和治療疾病;EDTMPA的螯合能力遠超過EDTA和DTPA,幾乎在所有使用EDTA作螯合劑的地方都可用EDTMPA替代。
二、質量指標項 目 | 指 標 | |
一等品 | 優等品 | |
外 觀 | 白色結晶性粉末 | |
活性組分(以EDTMPA計)% ≥ | 91.0 | 95.0 |
有機膦(以PO4計)% ≥ | 78.0 | 82.0 |
PH值(1%水溶液) ≤ | 2.0 | 2.0 |
氯化物 (以Cl計)% ≤ | 0.1 | 0.1 |
乾燥失重% ≤ | 8.0 | 2.0 |
Fe (以Fe3+計)含量ppm ≤ | 5 | 5 |
三、包裝與貯存
EDTMPA採用複合塑編袋包裝或符合出口環保要求的包裝,每袋淨重25kg,貯於室內陰涼處,貯存期十個月。
四、安全防護
EDTMPA為酸性固體,操作時注意勞動保護,應避免與皮膚、眼睛等接觸,接觸後用大量清水沖洗。
EthyleneDiamineTetra(MethylenePhosphonicAcid)EDTMPA(Solid)
CASNo1429-50-1Dequest:2040MolecularFormula:C6H20N2O12P4Molecularweight:436.13
Properties:
EDTMPAiswhitecrystalpowderatroomtemperature,withmeltingpoint215-217℃,hardtobedissolvedinwater,thesolubilityislessthat5%atroomtemperature,easydissolvedinammonia.EDTMPAhasstrongmetalionchelatingcapacity,whosechelatingconstantwithcuprumionislargerthanthatofEDTA.
EDTMPAhashighcapacityforchelatingmetalions.ThecomplexconstantwithCuisthelargestinallchelatingagentsincludingEDTA.EDTMPAisakindofhigh-puregradereagentandinnocuous,itcanbeusedasdetergentinsemiconductorchiptoprepareintegratedcircuit,ascarryingagentforradioelementinmedicalindustry,andasagentforinspectionandtherapy.ThechelatingcapacityofEDTMPAlargelyexceedthatofEDTAandDTPA,andcanreplaceEDTAforchelatingagentatalmostanysituation.
Specification:
itemsindex
AppearanceWhitecrystalpowder
Activeacid%95.0min
Totalphosphonicacid(asPO43-)%82.0min
Drynessweightloss%2.0max
Feppm5max
Cl%0.1max
pH(1%solution)2.0max
Ourcompanycanproduce99%(chromatographpurity)andhighpurityproductondemandofclients.
PackageandStorage:
25kginnerlinerpolyethylene(PE)bag,outerplasticwovenbag,withagreementwithexportenvironmentrequirement,orconfirmedbyclients.Storageforoneyearinroomshadyanddryplace