edtmpA
Ethylene Diamine Tetra (Methylene Phosphonic Acid) EDTMPA (Solid)
CAS No 1429-50-1 Dequest: 2040
Molecular Formula: C6H20 N2O12P4 Molecular weight: 436.13
Properties:
EDTMPA is white crystal powder at room temperature, with melting point 215-217℃, hard to be dissolved in water, the solubility is less that 5% at room temperature, easy dissolved in ammonia. EDTMPA has strong metal ion chelating capacity, whose chelating constant with cuprum ion is larger than that of EDTA.
EDTMPA has high capacity for chelating metal ions. The complex constant with Cu is the largest in all chelating agents including EDTA. EDTMPA is a kind of high-pure grade reagent and innocuous, it can be used as detergent in semiconductor chip to prepare integrated circuit, as carrying agent for radioelement in medical industry, and as agent for inspection and therapy. The chelating capacity of EDTMPA largely exceed that of EDTA and DTPA, and can replace EDTA for chelating agent at almost any situation.
Specification:
items index
Appearance White crystal powder
Active acid % 95.0min
Total phosphonic acid(as PO43-)% 82.0 min
Dryness weight loss % 2.0 max
Fe ppm 5 max
Cl % 0.1 max
pH(1% solution) 2.0 max
Our company can produce 99% (chromatograph purity) and high purity product on demand of clients.
Package and Storage:
25kg inner liner polyethylene (PE) bag, outer plastic woven bag, with agreement with export environment requirement, or confirmed by clients. Storage for one year in room shady and dry place
一、性能与用途：常温下EDTMPA为白色结晶性粉末，熔点215-217℃，微溶于水，在室温下溶解度小于5%，易溶于氨水。 EDTMPA具有很强的螯合金属离子的能力，与铜离子的络合常数是包括EDTA在内的所有螯合剂中最大的。EDTMPA为高纯试剂且无毒，在电子行业可作为半导体芯片的清洗剂用于制造集成电路；在医药行业作放射性元素的携带剂，用于检查和治疗疾病；EDTMPA的螯合能力远超过EDTA和DTPA，几乎在所有使用EDTA作螯合剂的地方都可用EDTMPA替代。
二、质量指标项 目
指 标
一等品
优等品
外 观
白色结晶性粉末
活性组分（以EDTMPA计）% ≥
91.0
95.0
有机膦（以PO4计）% ≥
78.0
82.0
PH值（1％水溶液） ≤
2.0
2.0
氯化物 （以Cl计）% ≤
0.1
0.1
干燥失重% ≤
8.0
2.0
Fe (以Fe3+计)含量ppm ≤
5
5
本公司可提供99%（色谱纯度）的高纯品，用于电子医药等行业。
三、包装与贮存EDTMPA采用复合塑编袋包装或符合出口环保要求的包装，每袋净重25kg，贮于室内阴凉处，贮存期十个月。