Tetrabutylurea (TBU)

• Appearance: Clear, colorless oily liquid

• Assay (GC): ≥ 99.5% (High Purity)

• Di-n-butylamine: ≤ 0.10% (Strictly Controlled Impurity)

• Water Content: ≤ 0.10%

• Total Sulfur: ≤ 5 ppm (Low Poisoning Risk for Catalysts)

• Total Halogens (as Cl): ≤ 10 ppm

• Acid Value: ≤ 0.15 mg KOH/g

The ideal working solvent for the Anthraquinone Process:

• Superior Solubility: Excellent dissolving power for both Anthraquinone (AQ) and Hydro-Anthraquinone (HAQ), ensuring high productivity and stable operation.

• TOPO Replacement: Acts as a cost-effective and chemically stable alternative to Trioctylphosphine Oxide (TOPO) in H₂O₂ working solutions.

• Chemical Stability: Highly resistant to oxidation and hydrolysis under process conditions, extending the lifespan of the working solution.

• Catalyst Protection: Ultra-low sulfur and halogen content protects expensive hydrogenation catalysts (Palladium) from poisoning.

Packaging: 175kg Steel Drum / 900kg IBC Tank / ISO Tank.

Storage: Store in a cool, dry, well-ventilated area. Stable under normal storage conditions.