Aluminum monohydrogen phosphate

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About:

Aluminum phosphate can be used in water-based alkyd, epoxy, polyurethane, etc., which has high performance corrosion protection requirements in the field of coatings, the need to replace chromate coatings system, effectively solve the early corrosion resistance and long-term corrosion resistance of coatings.

Chemical properties:
White rhombic crystal or powder. The relative density is 2.566. Melting point > 1500℃. Insoluble in water, soluble in concentrated hydrochloric acid, concentrated nitric acid, alkali and alcohol. At 580℃ it is more stable, and at 1400℃ it does not melt and becomes a colloidal body. Between room temperature and 1200℃, aluminum phosphate has four crystal forms, the common type is α.
Production method:
Hydrothermal synthesis method In the neutralization reactor with agitation, sodium aluminate is added into hot water and dissolved into a concentrated solution, heated to 85℃, and then 85% phosphoric acid is added for neutralization reaction to generate white precipitation, the end point is controlled at the Ph of 4.2 ~ 4.5, and then the precipitation and solution are sent to the autoclave with a stirring device, heated at 250℃ for several hours and centrifuge separation. The solid is sent to the washing tank, washed first with dilute hydrochloric acid solution, and then washed with water several times to remove water-soluble impurities, and filtered and dried to produce aluminum phosphate products. 

The composition of mother liquor separated by centrifuge is sodium dihydrogen phosphate, which is produced by recovery treatment. The 2H3PO4+NaAIO2→AlPO4+NaH2PO4+2H2O compound decomposition method dissolves trisodium phosphate and aluminum sulfate in water at 85 ~ 95℃ in the solution-tank, and then filters with a plate and frame filter to remove insoluble impurities. 

The two solutions were sent to the reactor at the appropriate concentration and molar ratio [A12(SO4)3/Na3PO4= 1:3] for complex decomposition reaction, so that the white colloidal aluminum phosphate precipitation was generated, and then the liquid-solid separation was carried out directly with the plate and frame filter press. 

Sodium sulfate is recovered from the separated mother liquor, and the aluminum phosphate left in the filter press is washed with dilute hydrochloric acid solution, and then washed with water several times to remove impurities such as sulfate, and the finished aluminum phosphate is obtained through filtration, drying and crushing. Its A12(SO4)3+2Na3PO4→2AIPO4+3Na2SO4

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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!

Our advantages

1) Timely communication, reply within 12 hours.You can leave any messages on our whats app 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.

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

1.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

2.Can the packages be trackable

YES, we provide tracking number and you can track on internet.

3.Where do you ship to

Worldwide.

4.Do you offer domestic shipping/remail shipping

Yes we can ship to USA/UK/Canada/Australia/Germany etc warehouse first then to you.

5.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.

6.Which payment options are available

Bitcoin,,Bank wire,MoneyGram

 

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