DTPA Product name: (Carboxymethylimino)bis(ethylenenitrilo)tetraacetic acid; Pentetic acid; DTPA;
English name: Diethylenetriaminepentaacetic acid
CAS No: 67-43-6
Molecular formula: C14H23O10N3
Molecular weight: 393.35
Structural formula: Technical index Item | Index | appearance | white crystal powder | purity (in 393.35) % | 99 | chloride(Cl)% | 0.01 | sulfate(as SO42-)% | 0.05 | heavy metal(Pb)% | 0.001 | ferrum(Fe)% | 0.001 | loss on drying % | 0.2 | chelating capacity(mgCaCO3/g PH=11) | 252 | PH(Saturated solution, 25) | 2.12.5 | solubilit test | up to standard |
Properties: DTPA is white crystal powder dissolved in hot water and aqueous alkali. It is lightly soluble in cold water, insoluble in organic solvents, for example, alcohol and ether. Melting point: 230
Uses: DTPA is efficient chelating agent. It is widely applied in acrylic fiber manufacturing as color inhibitor, in paper making industry, as water softening agent, as textile auxiliary agent, as food additive, as stabilizing agent of drugs. It is also used in water treatment, textile, paper making, rubber, photography, petroleum and chemical fields.
Packaging: 25kg inner plastic bag and outer woven bag or fiber drum, or for demand
Storage: Should be preserved in dry, ventilated and cool warehouse; should be separate with alkaline matter and strong oxidant
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