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Functional additives , Triphenylbismuth with melecular formula C18H15Bi
| Briefs | |
| EINECS: | 210-033-4 |
| CAS NO.: | 603-33-8 |
| Molecular Formula: | C18H15Bi |
| Molecule Weight: | 440.3 |
| Melting Point: | 78-80℃ |
| Boiling Point: | 310°C |
| Appearance: | White or milk, white crystal without |
| Water Solubility: | Insoluble in water, but soluble in anhydrous alcohol and n-heptane. |
| Stability and reactivity: | It’s stable in normal temperature and pressure, but reaction will take place if contacting with moisture, strong oxidant or strong ultraviolet ray. |
| Usage: | a good curing catalyzer for high-speed butyl hydroxyl propellant |
| Packaging & Delivery: | 25kg/drum, or other package at customer’s option |
| Specification: | ||
| Item | Unit | Index |
| Purity of Triphenyl bismuth | % | ≥97.5 |
| Melting point | ≥77.0 | |
| Bismuth content | % | 47.0-47.9 |
| Insoluble matters in acetone | % | ≤0.10 |
| Magnesium | % | ≤0.003 |
| Total Halogen(into chlorine) | % | ≤0.05 |
| Appearance: White or milk, white crystal without visible impurity or foreign matters | ||
Function and use:
Triphenyl bismuth (TPB) has been used as the solidifying catalyst for butyl hydroxyl propellant featuring high combustion velocity. TPB can lower solidifying temperature and shorten solidifying time for the propellant, as well as there is no by-effect for its processing performance and mechanics properties. The recommended dosage for TPB is 0.006%-0.05% of total weight of the propellant. Its solidifying time in 50°C is 7 days. In addition, TPB can be also used as the catalyst for ethylene polymarization into cyclooctatetraene, the catalyst for formaldehyde polymarization, the curing agent for polycyclochlorides, and catalysts for other some monomers’ polymarization etc.