Fluorescent Brightener 353
Hosea Chem® supplies Fluorescent Brightener 353, CAS 55585-28-9, also known as Tinopal MSP and Uvitex MST, for textile, paper, detergent and other fluorescent whitening applications with bulk supply from China. Send Inquiry
Product Description
Fluorescent Brightener 353, CAS 55585-28-9
Fluorescent Brightener 353 is a water-soluble fluorescent whitening agent and anionic optical brightener. It is commonly identified by the commercial and industry names Tinopal MSP, Uvitex MST and Uvitex EFT, as well as Fluorescent Brightening Agent 353 and C.I. Fluorescent Brightener 353.
Product Chemical Properties
Chemical Name: Fluorescent Brightener 353
Product Name: Fluorescent Brightener 353
CAS No.: 55585-28-9
Synonyms: Fluorescent Brightening Agent 353, C.I. Fluorescent Brightener 353, Tinopal MSP, Uvitex MST, Uvitex EFT, Fluorescent Brightener MST
Molecular Formula: C40H36N12Na6O20S6
Molecular Weight: 1334.10 g/mol
EC No.: 611-285-1
Chemical Type: Water-Soluble Fluorescent Whitening Agent
IUPAC Name: Hexasodium;2-[[4-[4-[2-[4-[[4-(2,5-disulfonatoanilino)-6-morpholin-4-yl-1,3,5-triazin-2-yl]amino]-2-sulfonatophenyl]ethenyl]-3-sulfonatoanilino]-6-morpholin-4-yl-1,3,5-triazin-2-yl]amino]benzene-1,4-disulfonate
Main Function: Fluorescent Whitening Agent / Optical Brightener
Product Technical Specification
Appearance: Light yellow uniform powder
Fluorescence intensity(Equivalent to standard), AND: 400±10: 100±3
Color light: approximate
Whiteness
(Difference in whiteness from the standard product: Whiteness of the sample % or INCIE—Whiteness of standard sample% or INCIE): ≥ -3
Mass fraction of water, %: ≤ 5.0%
Fineness (pass 250um Amount of residue on sieve aperture), %: ≤ 0.5%
mass fraction of water-insoluble matter, % : ≤ 10%
Applications of Fluorescent Brightener 353
1. Whitening of cotton and viscose fibers.
2. Suitable for addition to discharge printing pastes.
3. Fluorescent whitening of pulp.
4. Fluorescent whitening during surface sizing.
5. Fluorescent whitening during the coating process.
Performance Characteristics
1. Good water solubility; it dissolves in 3–5 times its volume of boiling water (approx. 300 g/L) and in cold water (approx. 150 g/L).
2. Insensitive to hard water; Ca²⁺ and Mg²⁺ ions do not affect its whitening performance.
3. Stable against peroxide bleaching agents and reducing-agent-based bleaches (such as sodium hydrosulfite).
4. Moderate acid resistance; optimal whitening occurs at a pH > 7.
Usage Instructions (Example: Pad-batch method):
Pad-bath temperature: 95–98°C; Dwell time: 10–20 minutes; Liquor ratio: 1:20;
Steaming time: approx. 45 minutes;
Dosage: 0.1–0.5%.
Packaging
10kg or 25kg / cardboard box.
Production Capacity
4800MT/Year.
Storage Requirements
Store Fluorescent Brightener 353 in tightly sealed original containers in a cool, dry and well-ventilated area.
Protect the product from moisture, excessive heat and direct sunlight.
Keep containers properly closed when not in use.
Shelf life: 24months
Fluorescent Brightener 353 Bulk Supply from China
Hosea Chem® supplies Fluorescent Brightener 353, CAS 55585-28-9, also known as Tinopal MSP, Uvitex MST and Uvitex EFT, for textile, paper, detergent and other water-soluble fluorescent whitening applications.