Optical Brightener BBU (C.I.220)

Optical Brightener BBU (C.I.220) CAS NO.:16470-24-9

Optical Brightener BBU is a chemical used in various industries. It appears as a white powder with no distinct odor. It is sparingly soluble in water.

1.Item name:

Fluorescent Brightener 220

2.Specifications:

CAS No.:16470-24-9

Molecular formula: C40H40N12O16S4Na4

Molecular Weight:1165.03548

EINECS:240-521-2

Structural formula:

3. Properties:

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

Recommended dosage: 0.1-0.5% of the dry pulp

4. Application:

Mainly used for paper making.

5.Package:

Packed in 25kgs fiber drum with double PE liners, or according to customers' request.
6.Storage:

Store in a cool and dry place, away from direct sunlight.