Optical Brightener Bbu CAS#16470-24-9
- Model NO.: mc
- Source: Insect Hormone
- Mode: Systemic Insecticide
- CAS No.: 112410-23-8
- Einecs No.: 200-096-6
- Emamectin Benzoate Boiling Point: 141-146
- Density: 1.20 (23 °c)
- Trademark: Betop
- Specification: 25kg/pp bags
- HS Code: 28182000
- Appearance: Powder
- Toxicity of High and Low: Low Toxicity of Reagents
- Toxicological Effect: Physical Agents
- Mf: C3h8no5p
- Application: Pest Control
- Melt Point: 141-146 °c
- Formulation: 30%Wdg
- Transport Package: 1kg/Bag, 25kg/Drum, or as Per Custemers Requiremen
- Origin: China
1.General information of Optical Brightener BBU(CAS#16470-24-9)
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CASÂ No. |
16470-24-9 |
Molecular formula |
C40H40N12O16S4Na4 |
Appearance |
Light yellow uniform powder |
Max UV absorption wavelength |
348±1nm |
Fluorescent intensity |
100±3 |
Whiteness |
≥-3 |
Moisture content |
≤5.0% |
Content of water-insolubie impurities |
≤0.5% |
Fineness(residual content passed through 250μm-pore sieve) |
≤10.0 |
Package |
Fiber drum or PE bags |
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About Optical Brighteners
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There are approximately 400 brightener types listed in the Colour Index, but less than 90 are actually produced commercially and only a handful are commercially important. Generically, the C.I. FBA number can be assigned to a specific molecule, however, some are duplicated, since manufacturers apply for the index number when they produce it. The global OBA production for plastics, textiles and detergents is dominated by just a few di- and tetra-sulfonated triazole-stilbenes and a di-sulfonated stilbene-biphenyl. These are subject to fading when exposed long term to UV, due to the formation of optically inactive stilbene cis-isomers found at the center of the molecule. Exposed to gases and especially oxygen they will fade too, like most dye colorants. All brighteners have extended conjugation and/or aromaticity, allowing for electron movement. Some non-stilbene brighteners are used in more permanent applications such as whitening synthetic fiber.
2.Application of Optical Brightener BBU(CAS#16470-24-9)
Optical Brightener BBU(CAS#16470-24-9) mainly used for paper making.
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