Introduction:
Diethylenetriamine pentaacetic acid (DTPA), also known as diethylenetriamine pentaacetic acid, is an excellent ammonium carboxylic complex agent, chelating property is strong, it forms with most cations than the corresponding chelates of ethylenediamine tetraacetic acid to be stable.
Application:
As a highly efficient chelating agent, diethylene triamine pentaacetic acid can be used in the production of acrylic fiber color inhibitors, paper industry, water softening agent, textile additives, chelating titrant, color photography and food industry, and it is also widely used in medical treatment, rare earth element separation and agricultural production.
Chemical properties:
This product is white crystal or crystalline powder. Melting point 230 ℃ (decomposition), soluble in hot water and alkali solution, slightly soluble in cold water, insoluble in alcohol ether and other organic solvents.
Production method:
283.7kg monochloroacetic acid was put into the reactor, and 220L of distilled water was added to stir and dissolve. Add 40% NaOH solution at 15℃, 300kg, about 1.5h. Then add 51.6kg diethylenetriamine under stirring, and control the temperature at about 20℃ during the adding process. 120kgNaOH aqueous solution (40%) was then added. Reaction at 40℃ for 10 ~ 12h. The reaction liquid is cooled to 5 ~ 10℃. Add 260L concentrated hydrochloric acid under stirring, adjust the pH value to 1.6 ~ 1.7, leave overnight, filter out the crystallization, wash the crystallization with 400L ice water, vacuum drying, and obtain about 130kg of crude product. Decolorization with distilled water to produce pure products.
| Product Name | Diethylenetriaminepentaacetic acid |
| CAS | 67-43-6 |
| Molecular Formula | C14H23N3O10 |
| Melocular Weight | 393.35 |
| EINECS | 200-652-8 |
| LogP | -1.361 (est) |
Melting Point
| 219-220 °C |
| Boiling Point | 517.84°C |
| Density | 1.56 |
| Refractive Index | 1.5700 |
| Flashing Point | 200 °C |
| Storage Condition | room temp |
Solubility
| In 0.1MNaOH, the solubility is 0.1Mat 20 °C, clear and colorless |
| pKa | pK1:;pK2:2.55(+1);pK3:4.33(+2);pK4:8.60(-3);pK5,10.58 (25°C) |
| PH | 2-3 (H2O, 20℃)(saturated solution) |
| Water Solubility | 5 g/L (20 ºC) |
| Sensibility | It's stable. Incompatible with strong oxidants. |
Our advantages:
1) Timely communication, reply within 12 hours.You can leave any messages on our whatsapp or send email to us.
2)Selecting raw materials strictly,our products are the highest purity.
3)Reasonable and competitive price.
4) Free sample for your evaluation.Customers only need to undertake the shipping fee for delivery the samples to your destionation.
5)OEM/ODM Available.Trial order is available for testing after samples.
6) Packaging can be customized according to each buyers' special request.
We guarantee that your package will pass 100% through the Mexico US, UK, Australia, Netherlands, Canada, France, Germany, Spain, Belgium, Sweden, Poland, Russian, Ukraine, Kazakhstan, Czech Republic, Slovakia, Portugal.
We have freight forwarders in these countries, and our customs clearance company will clear your parcels without any customs issues, sometimes even 1000 kg. Door to door service. Make sure you receive 100% of the goods. Let you have a good experience of our strong freight capacity.
Company Introduction
hebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and development production of reagent tens of thousands of species. our aim is quality strives for the survival. Seek development by credit reputation. Our products have big price advantage in Europe South America and so on .and Our company also has the advantage of high quality in Africa. in the past two years our products has reached more than 30 countries in the world, Europe. South America. North America, southeast Asia, Africa, etc. We welcome all over the world with the best quality and lowest price friend common cooperation and common development!
After Sales Service
1) Best quality in your requirement
2)Competitive price in china market
3)Mature technical support
4)Professional logistic support
5 )Full experience of large numberscontainers loading in chinese sea port
6 )Fast shipment by reputed shipping line
7) Packing with pallet as buyer's special request
8) Best service after shipment.
9) Cargoes together with container after-sales service available
10) Full experience in export
11)Raw materials from chinese origin
FAQ
What is the way you ship?
Express: FedEx, UPS, EMS, DHL, USPS, TNT, DPD, Aramex etc
Our way of shipping the products is universal and secure.
The company name and other contents related to pharmacy are not written on the package slips.
The way of packing is regularly changed for a secure delivery.
The packages are small in order to avoid unwelcomed questions . If the order is big, then it will be divided into two or more packages
Can the packages be trackable?
YES, we provide tracking number and you can track on internet.
Where do you ship to?
Worldwide.
Do you offer domestic shipping/remail shipping?
Yes we can ship to USA/UK/Canada/Australia/Germany etc warehouse first then to you.
Do you ensure your packing , what about customs, what happens if the package is retained?
We concern a lot about our safety system, we pack the orders as secure as possible. If a package is seized at customs, reships of seized orders will be done provided you have a copy of the letter to show us. If you receive a seizure letter, please contact us immediately with a scanned copy of the seizure letter, and also a new address to have your order reshipped to.
Which payment options are available?
Bitcoin
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Bank wire
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