NBPT is developed by the IMC of the U.S. (later merged with Cargill of the United States to establish U.S. Mason, currently the world's largest fertilizer manufacturer) at present, which is the most advanced, the best, the most widely applied and cost-effective urease inhibitor in the world. Currently used in the United States, Brazil, Germany and other countries, the half-life of 7-8 days after entering the soil will not affect the next crop. Final catabolite is mainly ammonium, sulfate radical, phosphate radical etc., which has no adverse effects on soil, microorganisms, humans, animals and water. It has been tested by the US Food and Safety Administration (FDA).
DMPP (3,4- dimethylpyrazole phosphate):
A nitrification inhibitor that is efficient, safe, nontoxic, and it is also environmental and less cost in the world. The effective period of ammonium nitrogen fertilizer can be extended from 25 days to more than 50 days, and the utilization rate can be increased from 30% to more than 40%.
DMPP has following characteristic:
1、Does not produce toxic effects on plants.
2、Completely decomposed in the soil, the final decomposition products are phosphate, water, carbon dioxide, nitrogen oxides.
3、There is no residue in the harvested agricultural products.
4、There is no risk to the soil, microorganisms, water bodies, humans and animals.
5、There is no leaching in the soil.
6、It is non-irritating to human skin.
7、With low dosage, the same effect can be achieved when the dose is only 1/15 of dicyandiamide.
1).N-(N-butyl) thiophosphoric triamide; (NBPT; NBTPT)
CAS NO: 94317-64-3
Molecular formula: C4H14N3PS
Assay: ≥97.0%
Melting point: 56-60℃
Description: White crystalline solids or white powder
Packing: 25kg/Cardboard drum or Kraft paper bag; 500kg/jumbo bag
2).N-(N-Propyl)-thiophosphoric triamide; (NPPT; NPTPT)
CAS NO: 916809-14-8
Molecular formula: C3H12N3PS
Assay: ≥97.0%
Packing: 25kg/Cardboard drum or Kraft paper bag; 500kg/ jumbo bag
3). 3,4-dimethylpyrazole phosphate; (DMPP)
CAS NO: 202842-98-6
Molecular formula: C5H8N2·H3O4P
Assay: ≥97.0%
Melting point: 167-169℃
Packing: 25kg/Cardboard drum or Kraft paper bag
4). 3,4-Dimethylpyrazole; 4,5-dimethyl-1H-pyrazole (DMP)
CAS NO: 2820-37-3
Molecular formula: C5H8N2
Assay: ≥97%
Melting point: 34-40℃
Packing: 25kg/Cardboard drum or Kraft paper bag