Product Description
Ammonium polyphosphate (APP) is a polyphosphate containing nitrogen and phosphorus, referred to as APP, with a variety of uses and application fields.
Ammonium polyphosphate, also known as ammonium polyphosphate, is a mixture of ammonium orthophosphate and various ammonium polyphosphates. The main components include ammonium pyrophosphate, ammonium tripolyphosphate, ammonium tetrapolyphosphate, and a small amount of ammonium polyphosphate with higher polymerization degree and longer chain. It is easily soluble in water, with a solubility greater than ammonium orthophosphate, and can chelate metal cations to retain them in the solution. The chemical formula of ammonium polyphosphate is (NH4)n+2PnO3n+1. According to the degree of polymerization, APP can be divided into three types: oligomeric, mesomeric and high polymeric. The higher the degree of polymerization, the lower the water solubility. Generally, when n<20, it is water-soluble, and when n>20, it is water-insoluble.
Ammonium polyphosphate has a wide range of applications, including:
Flame retardant: As a nitrogen-containing phosphate, ammonium polyphosphate has the characteristics of low toxicity, low smoke, and inorganic. It is a new type of high-efficiency inorganic flame retardant. It has significant advantages in the field of polymer materials. Compared with halogen-containing flame retardants, crystalline type II ammonium polyphosphate has good water insolubility and high decomposition temperature, and has good compatibility with polymer materials. It is widely used in intumescent fire retardant coatings, polyethylene, polypropylene, polyurethane, epoxy resin, rubber products, fiberboard and dry powder fire extinguishing agents.
Fertilizer: Ammonium polyphosphate has entered the field of chemical fertilizers as a new type of fertilizer, and is often used as a basic phosphate fertilizer for preparing high-concentration liquid compound fertilizers. Solid ammonium polyphosphate products are generally composed of 41% orthophosphate, 54% pyrophosphate, 4% tripolyphosphate and 1% tetrapolyphosphate and above. Liquid ammonium polyphosphate products generally contain higher tripolyphosphate and phosphate ions than granular products.
Other applications: In addition, ammonium polyphosphate is also used in flame retardant treatment of adhesives, sealants, wood, paper, plywood, fiberboard, and thermosetting resins such as epoxy resins or unsaturated resins.
The physical and chemical properties of ammonium polyphosphate include white powder, nearly neutral, and can be mixed with any other substances without chemical reaction. It has good thermal stability, and the thermal decomposition temperature is above 250ºC. When decomposing, it releases ammonia and water, and generates phosphoric acid. It is completely decomposed at 700ºC, leaving 6% to 7% of residue. The packaging and storage of ammonium polyphosphate should be carried out in dry, ventilated and moisture-proof conditions. It is a non-dangerous product and should be protected from moisture, rain and packaging damage during transportation.
Product Parameters
| Items |
Specification |
Results |
| Physical Appearance |
Clear solution |
PASS |
| N content (W/W) |
11% min |
11.1% |
| N content (W/V) |
16% min |
16.2.% |
| P2O5 (W/W) |
37% min |
37.3% |
| P (W/V) |
23% min |
23.1% |
| Potassium |
50 mg/kg max |
5.8 mg/kg |
| Fe |
50 mg/kg max |
40.2 mg/kg |
| AL |
50 mg/kg max |
12.1 mg/kg |
| Mg |
50 mg/kg max |
8.6 mg/kg |
| Fluorine |
20 mg/kg max |
5.7 mg/kg |
| Sodium |
50 mg/kg max |
19.3 mg/kg |
| Sulfur |
100 mg/kg max |
51.5 mg/kg |
| Silicon |
20 mg/kg max |
11.4 mg/kg |
| Pb |
20 mg/kg max |
6.3 mg/kg |
| Solubility |
100% |
100% |
| Density (g/cm3) 25ºC |
1.39-1.41 |
1.40 |
| pH |
5.5-6.5 |
5.2 |
Detailed Photos
Packaging & Shipping
Company Profile
Hubei Highwin New Material Technology Co., Ltd. focuses on the research and development, production and sales of epoxy resin and other chemical raw materials.
We have our own R&D laboratory, by ordinating our suppiers all over the world and manufacturing products with cooperated based factories, we're keeping enhance our competitiveness in the market.
Before developing overseas sales, we have been rooted in chemical raw materials for more than 20 years and have already been one of the top suppliers in China after years of efforts.
There are a group of hard-working, motivated, and creative staff working not only for the company but also for you--our respectable customer and partner! Based on good service and high-quality products, we're widely praised and trusted by customers and keep long-lasting relationships with them.
R&D Center
FAQ
Q:How to get a sample, is it free?
A:You can contact our sales staff through REQUEST and they will arrange sample shipment for you. We can provide you with free samples, you only need to pay for the shipping cost. For regular customers, sample fee and shipping fee are covered by us!
Q:How can I trust you? How long have you been in this field(Chemical raw material)?
A:Our owner has over 20 years of experience in the chemical raw materials field as well as our staffs. It is because of the trust of our customers and partners that we have been able to exist and develop for so many years. Our ever-lasting vision is to 'Obtain a wide range of customer resources through high-quality procurement and the best service, and establish a sustainable and stable customer relationship'!
Q: Can you offer any other services?
A:Yes! If you learn that there are very competitive products in China that are not within the scope of our display, we'd love to help you find quality resources. It's our honor to provide a one-stop purchasing service for you!
Q:How do you guarantee the quality of your products?
A:All of our products comply with national testing standards and international standards. If you need, we can provide you with certificates.
Q: Can you use customer-specific labeling and packaging?
A: Of course, you can provide us with the specified labeling and packaging and we will be happy to follow up with you.assist you. If there is anything else you need, please feel free to communicate with us!
Q: How about the delivery time?
A: We can’t give you the exact time because of different locations, but we can guarantee that we will ship your order as soon as possible after you place it and we will keep an eye on the logistics to remind you to receive the goods.
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