Molecular formula: C40H38N12O8S2Na2
Relative molecular weight: 924.93 (according to international
relative atom mass, 1997)
Maximum absorptive ultraviolet wavelength: 350nm
Exeutive standard: HG/T3675-2000
|used in detergent||used in textiles|
|1) Appearance||white or straw yellow uniform powder|
|2) Ultraviolet absorption (E) ≥||370|
|3) Brightening efficiency (compare with standard) , %||-||100|
|4) Color light (compare with standard)||-||similar to-quite low|
|5) Water content, % ≤||5.0|
|6) Insolubel impurities in water, % ≤||0.5|
|7) Fineness (425um residue) , % ≤||5.0|
Properteis and characteristics:
Optical Brightener CXT is a recognized excellent brightener for
detergent, with improved acid resistance and perborate resistance.
It can be used to brighten cellulose fibers, polyamide fibers and
textiles. Fluorescent Brightener CXT is ionic, with blue
fluorescence. It has higher chlorine-resistant brightening
efficiency than that of VBL and 31#. The most suitable PH value of
dying bath is 7～10. Its light fastness is Grade 4. When used in
detergent powder, its advantages are: high compatibility, high
accumulative washing brightness, and adjustable dosage in industry.
1. Can be used in detergent, detergent powder, soap and perfumed
soap to bring up bright and attractive appearance.
2. Can be used to brighten cotton fiber, nylon and such textiles,
has excellent brightening efficiency to artificial fibers,
polyamide fibers and vinylon, and has good brightening efficiency
to protein fibers and amino plastics.
Solubility of Optical Brightener CXT in water is lower than
brightener VBL and 31#. It can be diluted to 10% suspending
solution with hot water for use. The solution should be kept out of
the sun. Its dosage in detergent powder is 0.1-0.5%; in printing
and dyeing industry is 0.1-0.3%.
It is packed in iron drum or carton drum lined with plastic bag;
net weight: 20/25kg/drum or craft paper bag. It can also be packed
in accord with client's requirements. .
Please prevent it from collision and insolation when transport it.
It should be kept in cool, dry and ventilative warehouse. Storage
period: 2 years.