catalyst TPB Triphenyl Bismuth CAS 603-33-8
Triphenyl Bismuth
Executive standard: GJB 5276-2003
CAS RN: 603-33-8
1. Physical and chemical properties:
1.1 Molecular formula: C18H15Bi
1.2 Molecular Weight: 440.3
1.3 Solubility: Insoluble in water, but dissolved in anhydrous alcohol and n-heptane.
1.4 Stability and reactivity: Stable at normal temperature and pressures, but reacts with moisture, strong oxidant and strong ultraviolet light.
Propellant curing catalyst
Triphenylphosphonium (TPB) is used as a curing catalyst for high burning rate butylated hydroxy propellants. TPB can reduce the curing temperature of the propellant and shorten the curing time, and it has no adverse effect on the processing property and mechanical properties. The reference dosage of TPB is 0.006%-0.05% of the total propellant, and the curing time is 50 °C. 7 days
Monomer polymerization catalyst
Used as a catalyst for the polymerization of acetylene into cyclooctane tetratin, a formaldehyde polymerization catalyst, a curing agent for polycyclochloride, a catalyst for polymerization of some other monomers, etc.
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Item
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Index
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Purity,%
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≥97.5
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Melting point,℃
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≥77.0
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Bi content.%
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47.0-47.9
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Insoluble in acetone content,%
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≤0.10
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Mg content,%
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≤0.003
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Total halogen content(in Cl),%
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≤0.05
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Appearance
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White or milky crystal,no visible impurities
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