Fluorescent Brightener 220
Hosea Chem® supplies Fluorescent Brightener 220, CAS 16470-24-9, for textile, paper, detergent and water-based fluorescent whitening applications with bulk supply from China. Send Inquiry
Product Description
Fluorescent Brightener 220, CAS No.: 16470-24-9
Fluorescent Brightener 220 is a water-soluble fluorescent whitening agent belonging to the stilbene-triazine class of optical brighteners. It is also known as Optical Brightener BBU, Blankophor BBU, Leucophor U, Phorwhite BBU and C.I. Fluorescent Brightener 220.
Product Chemical Properties
Chemical Name: Tetrasodium 4,4'-Bis[[4-[bis(2-hydroxyethyl)amino]-6-(4-sulfonatoanilino)-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulfonate
CAS No.: 16470-24-9
Molecular Formula: C40H40N12Na4O16S4
Molecular Weight: 1165.03 g/mol
EC No.: 240-521-2
Color Index: C.I. Fluorescent Brightener 220 / C.I. 40623
Main Synonyms: Optical Brightener BBU, FBA 220, Blankophor BBU, Blancofor BBU, Leucophor U, Phorwhite BBU, Optical Brightening Agent BBU
Chemical Type: Water-soluble anionic fluorescent whitening agent
Maximum ultraviolet absorption wavelength: 350 nm
Belong to Property: Anionic, blue light
Product Technical Specification
Appearance: Light yellow uniform 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
Applications of Fluorescent Brightener 220
1. Used for the optical brightening of cotton and viscose fibers.
2. Suitable for addition to discharge printing pastes.
3. Used for fluorescent brightening in pulp.
4. Used for fluorescent brightening during surface sizing.
5. Used for fluorescent brightening during the coating process.
Performance characteristics
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.
Usage method:(Taking the padding method as an example)
Padding solution temperature95 - 98℃, Residence time: 10 - 20 minutes, Bath ratio: 1:20,Steaming time is about45 minutes, Dosage: 0.1 - 0.5%.
Packaging
25 kg/ carton.
Production Capacity
6400MT/year.
Storage Requirements
Store in a cool, dry and well-ventilated area.
Keep the container tightly closed and protected from moisture.
Avoid prolonged exposure to direct sunlight and excessive heat.
Shelf life: 24months
Fluorescent Brightener 220 Bulk Supply from China
Hosea Chem® supplies Fluorescent Brightener 220, CAS 16470-24-9, for textile, paper, detergent and other industrial fluorescent whitening applications.