|
HS Code |
591120 |
| Chemical Name | 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene |
| Cas Number | 7128-64-5 |
| Appearance | Yellowish green powder |
| Molecular Formula | C26H26N2O2S |
| Molecular Weight | 430.57 g/mol |
| Melting Point | 196-203°C |
| Solubility | Insoluble in water, soluble in organic solvents like chloroform and toluene |
| Maximum Absorption Wavelength | 375 nm |
| Maximum Emission Wavelength | 437 nm |
| Application | Widely used as a fluorescent whitening agent in plastics, coatings, inks, and fibers |
As an accredited Optical Brightener OB factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Optical Brightener OB is packaged in 25 kg fiber drums, lined with plastic bags for moisture protection and secure chemical containment. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Optical Brightener OB: Typically 6-8 metric tons, packed in 25kg fiber drums or cartons, securely palletized. |
| Shipping | Optical Brightener OB is typically shipped in tightly sealed fiber drums or plastic containers, each lined with inner plastic bags to prevent moisture absorption and contamination. Containers are clearly labeled and handled according to safety regulations. The product should be stored in a cool, dry, well-ventilated area away from direct sunlight and incompatible substances. |
| Storage | **Storage of Optical Brightener OB:** Optical Brightener OB should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Protect the chemical from moisture and incompatible materials, such as strong oxidizers. Keep the storage area clearly labeled and ensure access is limited to trained personnel wearing appropriate protective equipment. |
| Shelf Life | Optical Brightener OB typically has a shelf life of 2 years when stored in a cool, dry, and well-sealed container. |
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Purity 99%: Optical Brightener OB with purity 99% is used in polypropylene sheets, where it enhances whiteness and visual brightness. Melting Point 201°C: Optical Brightener OB with melting point 201°C is used in polyester fiber production, where it ensures processing stability and optimal color development. Particle Size ≤5µm: Optical Brightener OB of particle size ≤5µm is used in PVC films, where it provides uniform dispersion and consistent optical effects. Light Stability 7 Grade: Optical Brightener OB with light stability 7 grade is used in outdoor plastic packaging, where it maintains brightness under prolonged UV exposure. Molecular Weight 430 g/mol: Optical Brightener OB with molecular weight 430 g/mol is used in engineering plastics, where it promotes compatibility and sustained performance. Solubility in Organic Solvents: Optical Brightener OB with high solubility in organic solvents is used in solvent-based inks, where it yields high fluorescence and vivid print quality. Thermal Stability 250°C: Optical Brightener OB with thermal stability 250°C is used in HDPE blow molding, where it resists degradation during high-temperature processing. |
Competitive Optical Brightener OB prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@bouling-chem.com.
We will respond to you as soon as possible.
Tel: +8615651039172
Email: sales9@bouling-chem.com
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