Product Description of N-(n-Butyl)thiophosphoric Triamide CAS#94317-64-3
N-(n-Butyl)thiophosphoric triamide, generally shortened to NBPT, can also be called butyl thiophosphate triamine. This high-efficiency soil urease inhibitor possesses the molecular formula C4H14N3PS and the registered CAS number 94317-64-3. Under ambient-temperature circumstances, it takes the form of white crystal or powdered-state solid, with its melting-point ranging from 58-60°C.
Functioning as one fertilizer-enhancing additive, NBPT gets mixed with urea according to fixed proportions. It is capable of cutting ammonia gas volatilization by 40%-60% and lifting the nitrogen fertilizer utilization rate above 50%. Its soil degradation half-life lasts roughly seven to eight days, and the final breakdown products are ammonium, sulphate, phosphate and other naturally-occurring compounds.
N-(n-Butyl)thiophosphoric triamide Chemical Properties
| Melting point | 58-60°C |
| Boiling point | 277.4±23.0 °C(Predicted) |
| density | 1.171±0.06 g/cm3(Predicted) |
| vapor pressure | 0.001-1.7Pa at 25℃ |
| Fp | 96°C |
| storage temp. | Keep in dark place,Inert atmosphere,2-8°C |
| solubility | DMSO (Sparingly), Methanol (Slightly) |
| form | Solid |
| pka | 6.23±0.70(Predicted) |
| color | White to Off-White |
| Water Solubility | 4.3 g/L at 25 ºC |
| Sensitive | Stench |
| InChIKey | HEPPIYNOUFWEPP-UHFFFAOYSA-N |
| LogP | -0.32-0.444 at 20-25℃ |
| CAS DataBase Reference | 94317-64-3(CAS DataBase Reference) |
| EPA Substance Registry System | Phosphorothioic triamide, butyl- (94317-64-3) |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38-20/21/22 |
| Safety Statements | 26-37/39-36/37/39-22 |
| Hazard Note | Stench |
| HS Code | 29299090 |
Product Application of N-(n-Butyl)thiophosphoric Triamide CAS#94317-64-3
N-(n-Butyl)thiophosphoric triamide ranks among the popular additives for slow-release nitrogen fertilizers, which mainly works as a urease suppressor for urea-containing fertilisers. It is extensively utilised to manufacture stabilised urea, compound blended fertilisers and water-soluble fertilizer goods.
Its suggested dosage ranges from 0.09%-0.2% calculated on amide-nitrogen, or 0.04%-0.09% relative to urea weight. Multiple product forms are supplied, such as regular and custom-made powder, as well as standard and tailored liquid preparations. The common powder grade holds active content no less than 97%, whereas liquid-state commodities carry 25%-35% effective constituent.
