Audited Supplier
| DAP 18-46-0 | |||
| NO. | ITEM | SPECIFICATION | TEST RESULT |
| 1 | Total(P2O5+N) | 64.00%min | 64.20% |
| 2 | Total P2O5 | 46.00%min | 46.65% |
| 3 | Total N | 17.00%min | 17.36% |
| 4 | Water Soluble | 42.00%min | 42.56% |
| 5 | Moisture | 0.2%max | 0.10% |
| 6 | Size | 2-4mm | 98.00% |
What is DAP?
Diammonium phosphate, also known as diammonium hydrogen phosphate (DAP), is a compound fertilizer containing nitrogen and phosphorus.
DAP is a high-efficiency fertilizer widely used in vegetables, fruits, rice, and wheat. It is also used in animal feed, food, printing and plate making, medicine, fire prevention, electronic tubes and other industries.
Heating anhydrous sodium diamidophosphate causes polmerization:
·At 160 °C, Na2P2O4(NH)(NH2)2, Na3P3O6(NH)2(NH2)2, Na4P4O8(NH)3(NH2)2, Na5P5O10(NH)4(NH2)2 and Na6P6O12(NH)5(NH2)2 are produced. These substances contain P-N-P backbones. These can be separated by paper chromatography.
·At 200 °C the hexa-phosphate is produced.
·At 250 °C the typical chain length is 18.
Diamidophosphate inhibits urease enzymes by blocking up the active site, binding to two nickel centers. Diamidophosphate mimics the urea hydrolysis intermediate.
Diamidophosphate is tribasic, and the amine groups may also lose hydrogen to form more metallic salts. With silver, further reactions can yield explosive salts: tetrasilver orthodiamidophosphate (AgO)3P(NH2)NHAg, and pentasilver orthodiamidophosphate (AgO)3P(NHAg)2.
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Q: Can I get free samples? How long?
A: Sure. We have stock, so we can offer the sample within a few days.
Q: Payment options?
A: T/T or L/C. (OA & DP are not accepted)
Q: Delivery time?
A: 15 days since deposit.
Q. OEM?
A: Yes.
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