Product Description
Product Name: Optical Brightener BBU
Molecular formula: C40H40N12O16S4Na4
CAS No.: 16470-24-9
Appearance: Light yellow uniform powder
Max UV absorption wavelength: 348± 1nm
Fluorescent intensity: 100± 3
Whiteness: ≥ -3
Moisture content: ≤ 5.0%
Content of water-insolubie impurities: ≤ 0.5%
Fineness(residual content passed through 250μ M-pore sieve): ≤ 10.0
Application: Mainly used for paper making
Package: Fiber drum or PE bags
Recommended dosage: 0.1-0.5% of the dry pulp