CAS No. 16470-24-9 Fluorescent Brightener 220/Blankophor Bbu in Whitening Paper Pulp
Description of Fluorescent brightener BBU
Fluorescent brightener BBU is a kind of diphenylene-triazine fluorescent brightener, which is widely used in the paper and textile industries.
Fluorescent brightener BBU
C.I.220 CAS: 16470 - 24 - 9
Molecular formula: C40H40N12O16S4Na4
Relative molecular mass: 1165.12 (According to the international relative atomic mass in 1997)
Maximum ultraviolet absorption wavelength: 350 nm
Belong to Property: Anionic, blue light
Implementation standard: HG/T3727 – 2003
Quality indicators of Fluorescent brightener BBU
|
Item |
Indicator |
|
Appearance |
Light yellow powder |
|
Fluorescence intensity (equivalent to the standard product), score |
100 |
|
Whiteness (Difference in whiteness from the standard product: Sample whiteness % or WCTE - Standard sample whiteness % or WCTE) |
≥ -3 |
|
Moisture content, % |
≤ 5.0 |
|
Fineness (Amount of residue passing through a 250μm aperture sieve), % |
≤ 10 |
|
Mass fraction of water - insoluble matter, % |
≤ 0.5 |
Performance characteristics of Fluorescent brightener BBU
1. Good water - solubility. It can be dissolved in 3 - 5 times its volume of boiling water. About 300g can be dissolved in one liter of boiling water, and about 150g can be dissolved in cold water.
2. It is not sensitive to hard water. Ca2+, Mg2+ do not affect its brightening effect.
3. Resistant to peroxide bleaching agents and bleaching agents containing reducing agents (such as sodium hydrosulfite).
4. It has general acid resistance. The brightening condition with pH > 7 is better.
Product uses of Fluorescent brightener BBU
1. Used for brightening cotton fibers and viscose fibers.
2. Suitable for adding to discharge printing paste.
3. Used for fluorescent brightening in pulp.
4. Used for fluorescent brightening in the surface sizing process.
5. Used for fluorescent brightening in the coating process.
Usage method of Fluorescent brightener BBU
Taking the padding method as an example
Padding solution temperature 95 - 98℃, Residence time: 10 - 20 minutes, Bath ratio: 1:20, Steaming time is about45 minutes, Dosage: 0.1 - 0.5%.
Packaging and Storage of Fluorescent brightener BBU
Packaging: 10kg or 25kg cardboard drums or cartons.
Can be customized according to customer requirements.
Storage: It should be stored in a cool, dry and ventilated warehouse.
Shelf life: 2 years.
Other types of Fluorescent brightener
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Optical brightening agent CXT |
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Optical brightening agent BA |
Optical brightening agent OB |
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Optical brightening agent OB-1 |
Optical brightening agent CBS-X |
|
Optical brightening agent KS |
Optical brightening agent DP-127 |
|
Optical brightening agent KCB |
Optical brightening agent KSB |
|
Optical brightening agent KSN |
Optical brightening agent OEF |