Product Description of Piperonyl Butoxide 95% CAS#51-03-6
Piperonyl butoxide, also known as synergist ether, is capable of boosting the insecticidal activity of pyrethrins, different pyrethroid products, rotenone and carbamate insecticides. It can also strengthen the insecticidal performance of active ingredients including fenitrothion, dichlorvos, chlordane, triclofenac and atrazine, and delivers synergistic action while improving the stability of pyrethrum extracts.
In bioassays targeting house flies, this ingredient achieves more pronounced synergism when combined with permethrin compared to octachlorodipropyl ether. Nevertheless, it fails to improve the knockdown effect of cypermethrin against house flies.
For mosquito coil formulations, it provides no synergistic benefit to allethrin and may even weaken its insecticidal performance.
Product Parameters of Piperonyl butoxide 95% CAS#51-03-6
| Density | 1.059 |
| Melting point | <25 °C |
| Boiling point | 180 °C |
| Refractive index | 1.497-1.507 |
| Flash Point | 340° F (NTP, 1992) |
| Vapour Pressure | 0.02 hPa (60 °C) |
| Precise Quality | 338.209 |
| PSA | 46.15 |
| logP | 3.7177 |
| Solubility | light yellow liquid |
| Viscosity | Viscosity is a measure of a fluid's resistance to flow. It describes the internal friction of a moving fluid. |
| AnalyticLaboratory Methods | Method: OSHA PV2110; Procedure: high performance liquid chromatography using an ultraviolet detector; Analyte: piperonyl butoxide;; Matrix: air; Detection Limit: 0.08 mg/cu m. |
| Appearance | Piperonyl butoxide is a pale yellow to light brown liquid with a mild odor and a faint bitter taste. (NTP, 1992) |
| Storage | Ambient temperatures. |
| Chemical Properties | Practically insoluble in water, freely soluble in acetone, in anhydrous ethanol, in methylene chloride and in fatty oils. |
| Color/Form | Clear yellow |
| Corrosivity | NONCORROSIVE |
| Decomposition | When heated to decomp it emits acrid smoke and irritating fumes. |
| Odor | ODORLESS |
| Physical | PHYSICAL DESCRIPTION: Pale yellow to light brown liquid with a mild odor and a faint bitter taste. (NTP, 1992) |
| Water Solubility | H2O: <0.1 g/100 mL at 18 oC |
| Spectral Properties | Index of refraction: 1.50 at 20 deg C/D Intense mass spectral peaks: 176 m/z (100%), 177 m/z (41%), 194 m/z (26%), 57 m/z (19%) |
| Stability | Stable. Combustible. Incompatible with oxidizing agents. |
| StorageTemp | 2-8°C |
Product Application of Piperonyl Butoxide 95% CAS#51-03-6
It is applied to manage storage pests such as grain weevils infesting stored grains including rice, wheat and beans.
It is frequently blended with pyrethrin-based insecticides to generate remarkable synergistic results. For instance, pyrethrin alone yields roughly 46% mortality against house flies, while the combination formula (30 mg pyrethrin plus 400 mg piperonyl butoxide) can raise the kill rate up to 92%.
Normally, it is compounded with pyrethrin at a ratio of around 1:10 to produce 0.05%–0.2% emulsions or dust powders. Once applied, the residual activity can sustain insect repellency for 1 to 10 months.
Under Japanese regulatory standards, it is permitted for use on cereals with a maximum residue limit of 0.024 g/kg calculated on piperonyl butoxide. A typical compound insecticide formulation consists of 1.2% piperonyl butoxide, 0.08% pyrethrins and 98.72% inert mineral carriers. The recommended dosage is approximately 120 g of this mixture for spraying per 60 kg grain.
