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
Quality indicators:
Value
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
Properties and use:
Fluorescent 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.
Application method:
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.
Application method:
Solubility of Fluorescent 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%.
Packing:It is packed in carton drum lined with plastic bag; net weight: 25kg/drum or 50kg/drum.