| Place of Origin: | shifang |
|---|---|
| Minimum Order Quantity: | 5 |
| Price: | negotiable |
| Packaging Details: | In 25kg, 50kg, 1000kg net bags |
| Payment Terms: | D/P, T/T, L/C |
| Type: | Diammonium Phosphate | PH: | 7.8-8.2 |
|---|---|---|---|
| Application: | Fire Retardant | Keywords: | Dap Diammonium Phosphate |
| Mf: | (NH4)2HPO4 | Appearance: | White Granular Crystal |
| Cas No.: | 7783-28-0 | Other Names: | Ammonium Phosphate Dibasic |
| High Light: | PH7.8 DAP Diammonium Phosphate,NH4 2HPO4 Diammonium Phosphate Fertilizer,PH7.8 DAP Ammonium phosphate dibasic |
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Diammonium Phosphate DAP Diammonium Hydrogen Phosphate Ammonium Phosphate Dibasic
Diammonium Phosphate (DAP)
Molecular formula: (NH4)2HPO4
Molecular weight: 132.0
Standard executed: HG/T4132-2010(Technical grade)
CAS Number: 7783-28-0
Product information:
Diammonium phosphate DAP; IUPAC name diammonium hydrogen phosphate; chemical formula (NH4)2(HPO4) is one of a series of water-soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid. Solid diammonium phosphate shows a dissociation pressure of ammonia as given by the following expression and equation:
(NH4)2HPO4(s) ⇌ NH3(g) + (NH4)H2PO4(s)
At 100 °C, the dissociation pressure of diammonium phosphate is approximately 5 mmHg.
According to the diammonium phosphate MSDS from CF Industries, Inc., decomposition starts as low as 70 °C: "Hazardous Decomposition Products: Gradually loses ammonia when exposed to air at room temperature. Decomposes to ammonia and monoammonium phosphate at around 70 °C (158 °F). At 155 °C (311 °F), DAP emits phosphorus oxides, nitrogen oxides and ammonia."
Guaranteed Technical Specifications :
| No. | Specifications | Industrial Grade |
| 1 | Main content(NH4)2HPO4 % ≥ | 98.0 |
| 2 | Phosphorus pentoxide (P2O5) % ≥ | 53.0 |
| 3 | Nitrogen, as N % ≥ | 20.8 |
| 4 | PH value of 1% solution | 7.8-8.2 |
| 5 | Moisture % ≤ | 0.3 |
Properties:
White granular crystal, relative density at 1.619g/cm3, melting point at 155.C , easily soluble in water, insoluble in alcohol, PH value of 1% solution is 8.0
Application:
DAP is used as a fertilizer. When applied as plant food, it temporarily increases the soil pH, but over a long term the treated ground becomes more acidic than before upon nitrification of the ammonium. It is incompatible with alkaline chemicals because its ammonium ion is more likely to convert to ammonia in a high-pH environment. The average pH in solution is 7.5–8. The typical formulation is 18-46-0 (18% N, 46% P2O5, 0% K2O).
Packing and storage:
In 25kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place.
Company Introduction:
Sichuan Kangze Hongyun International Trade Co., LTD., founded in June 2021, located in High-tech Zone, Chengdu,
Sichuan province, China,with a registered capital of 10 million yuan, is committed to all kinds of chemical import and
export trade and domestic trade.
It is a wholly owned subsidiary of Sichuan Shifang Konlon Chemical Co., LTD .,which established in August 2002,located
in the north of Economic Development Zone, Shifang City ,Sichuan Province,covers an area of 50,000 squaremeters.
Since its establishment, we has been making unremitting efforts around the upgrading of fine phosphate product
technology and independent innovation.Through the ISO9001 quality certification system.We attaches great importance
to the development and expansion of the market, in Tianjin, Guangzhou, Xinjiang, many places with offices and warehouses.
