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HS Code |
172142 |
| Chemical Name | 2,2'-(1,2-ethenediyl)bis(5-tert-butyl-1,3-benzoxazole) |
| Cas Number | 1533-45-5 |
| Appearance | yellowish green crystalline powder |
| Molecular Formula | C28H18N2O2 |
| Molecular Weight | 414.45 |
| Melting Point | 357-360°C |
| Solubility | insoluble in water, soluble in organic solvents |
| Lightfastness | excellent |
| Thermal Stability | good up to 375°C |
| Fluorescence Color | bright blue under UV light |
| Main Applications | brightening of polyester and plastic materials |
| Purity | ≥98.5% (typical) |
| Odor | odorless |
As an accredited Optical Brightener OB-1 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Optical Brightener OB-1 is packaged in 25 kg fiber drums lined with plastic bags for moisture protection and safe transport. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Optical Brightener OB-1: Typically 8–10 metric tons packed in 25kg fiber drums or cartons, securely palletized. |
| Shipping | Optical Brightener OB-1 is securely packaged in 25 kg fiber drums or bags, lined with plastic to prevent contamination. During shipping, it is protected from moisture and direct sunlight. The product is labeled according to regulatory requirements and transported by sea, air, or land, ensuring safe and compliant delivery. |
| Storage | Optical Brightener OB-1 should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Keep the container tightly sealed to prevent moisture absorption and contamination. Avoid contact with strong oxidizing agents. Store OB-1 in its original, labeled packaging and ensure that it is kept out of reach of unauthorized personnel. |
| Shelf Life | Optical Brightener OB-1 has a shelf life of 24 months when stored in a cool, dry, and well-ventilated place. |
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Purity 98%: Optical Brightener OB-1 with 98% purity is used in the polymer industry for PET fiber production, where it delivers enhanced fiber whiteness and optimal color brightness. Molecular Weight 414 g/mol: Optical Brightener OB-1 with molecular weight 414 g/mol is used in polypropylene injection molding applications, where it provides superior UV stability and improved product aesthetics. Melting Point 357°C: Optical Brightener OB-1 with a melting point of 357°C is applied in high-temperature engineering plastics processing, where it ensures thermal stability and consistent optical performance. Particle Size <10 μm: Optical Brightener OB-1 with particle size less than 10 μm is utilized in PVC film manufacturing, where it enables homogeneous dispersion and intensified brightening effect. Stability Temperature 330°C: Optical Brightener OB-1 with a stability temperature of 330°C is used in high-speed extrusion of ABS resins, where it maintains whitening efficiency and color fastness during processing. Solubility in Organic Solvents: Optical Brightener OB-1 soluble in organic solvents is applied in polyester masterbatch production, where it guarantees uniform distribution and maximized fluorescent whitening. Color Index Number 393: Optical Brightener OB-1 with color index number 393 is used in styrene copolymer compounding, where it delivers consistent shade uniformity and high brilliance. |
Competitive Optical Brightener OB-1 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
Flexible payment, competitive price, premium service - Inquire now!
