Taizhou Liancheng Chemical Co., Ltd.
                                                                                                           
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Optical Brightener OB-1 Powder CAS 1533-45-5 for Plastics - 98% Purity, 359°C Melting Point

Price Negotiable
Price: negotiable
MOQ: 100KGS
Delivery Time: 5-8working days
Brand: ARCHTEX
Product Description
Product Overview

Optical Brightener OB-1 is a high-performance powdered whitening agent specifically formulated for plastic manufacturing applications. This distyryl double benzoxazole compound delivers exceptional fluorescence and thermal stability.

Key Features
  • High whitening strength with strong fluorescence intensity
  • Excellent high temperature performance up to 359°C melting point
  • Wide application compatibility across multiple polymer systems
  • Minimum purity of 98% ensuring consistent results
Technical Specifications
Parameter Specification
Product Name Optical Brightener OB-1
CAS Number 1533-45-5
Chemical Name 2,2-(4,4-diphenol vinyl) dibenzoxazol
Molecular Formula C28H18N2O2
Physical Form Yellowish green powder
Melting Point ≥359°C
Purity ≥98%
Fineness 0.050
EINECS Number 216-245-3
Application Areas
  • Polypropylene plastic
  • Rigid PVC
  • ABS materials
  • EVA polymers
  • Polystyrene
  • Polycarbonate
  • Polyester fibers
  • Nylon fibers
  • Polypropylene fibers
Dosage Guidelines
Per 100kg of polymer:
  • Transparent applications: 0.0025-0.005% (2.5g-5g)
  • General applications: 0.0025-0.025% (2.5g-25g)
  • Maximum dosage: Not exceeding 0.03% (30g)
Important Note: When adding UV absorbers to the polymer, adjust the optical brightener OB-1 dosage accordingly for optimal performance.
Packaging & Storage

Available in 15kg bottles or 5kg cartons (5kg×4 or 5kg×2 configurations). Store in cool, dry conditions away from heat sources and direct sunlight. Ensure proper ventilation in storage and mixing areas to avoid inhalation. Transport according to standard chemical handling procedures.

Optical Brightener OB-1 powder product sample showing yellowish green coloration Close-up view of Optical Brightener OB-1 powder texture and consistency

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Taizhou Liancheng Chemical Co., Ltd.
Location Jiaoyang Village, Xiachen Street, Jiaojiang, Taizhou, Zhejiang Province, China
Contact Person Mike

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