UV Absorber 866 Bulk Density Procurement Specs & Logistics

UV Absorber 866 Bulk Density Specifications for Procurement Logistics

Procurement logistics for UV Absorber 866 (CAS: 23949-66-8) rely heavily on accurate bulk density data to calculate freight volume and silo capacity. The standard bulk density for this hindered amine light stabilizer (HALS) is established at 0.40 g/ml. This parameter is critical for procurement managers calculating load factors for container shipments and storage silo dimensions. Unlike liquid additives, powdered stabilizers require precise volumetric data to prevent hopper bridging or underutilization of transport capacity.

At NINGBO INNO PHARMCHEM CO.,LTD., we prioritize providing certified Certificate of Analysis (COA) documents that verify physical constants alongside chemical purity. When evaluating suppliers, ensure the bulk density specification aligns with the 0.40 g/ml benchmark to maintain consistency in your dosing equipment calibration. Deviations in bulk density can indicate variations in particle size distribution or crystallinity, which may affect flowability during high-volume processing.

For detailed technical data sheets regarding this UV Absorber 866 polyurethane stabilizer, review the physical property tables below. These specifications are derived from GC-MS and physical testing protocols essential for quality assurance in polymer manufacturing.

Parameter	Specification Value	Test Condition
Bulk Density	0.40 g/ml	Standard Tap Density
Specific Gravity	1.21 g/ml	20°C
Angle of Repose	47°	Static Flow Test
Purity (GC-MS)	≥ 98.0%	Gas Chromatography
Volatility (TGA)	1.0% loss at 215°C	20°C/min heating rate

The data above confirms the material's suitability for high-temperature processing where thermal stability is paramount. The volatility profile indicates minimal weight loss during extrusion, ensuring the additive remains within the polymer matrix rather than evaporating into the exhaust system.

Optimizing Storage and Dosing for 0.40 g/ml UV Absorber 866 Bulk Density

Storage protocols for UV-866 must account for its physical flow characteristics. With an angle of repose of 47°, the powder exhibits moderate flowability. Procurement teams should specify silo cone angles that prevent arching, particularly in humid environments where moisture uptake could alter the bulk density. Maintaining the integrity of the 0.40 g/ml density ensures that volumetric feeders deliver the correct mass dosage per unit time.

Typical application levels for Light Stabilizer 866 range between 0.1% and 2.0% depending on the substrate and processing conditions. In thermoplastic polyurethane (TPU) formulations, precise dosing is critical to achieve excellent initial color and color retention under UV light without affecting the mechanical properties of the polymer. The solubility profile further dictates processing compatibility.

Solubility data at 25°C indicates high compatibility with common organic solvents used in coating applications:

• Acetone: 7.5 g/100 g solution
• Ethyl acetate: 9 g/100 g solution
• Dichloromethane: 29 g/100 g solution
• Toluene: 13 g/100 g solution
• Methanol: <0.01 g/100 g solution

Low solubility in methanol suggests that this stabilizer is best suited for non-polar or moderately polar solvent systems and melt-processing applications. Formulators should leverage this data when designing TPU additive packages to ensure homogeneous dispersion. Synergistic performance is often observed when used in combination with antioxidants such as hindered phenols or phosphites.

Industrial Packaging and Palletization Standards for UV Absorber 866 Procurement

Standard industrial packaging for bulk procurement consists of 25kg plastic bags. This packaging format balances manual handling safety with efficient palletization. A standard pallet configuration holds 500 kg per pallet, typically arranged in 20 bags per layer or stacked according to specific freight forwarder requirements. Procurement managers must verify pallet dimensions to optimize container loading plans, especially for LCL (Less than Container Load) shipments.

Proper palletization ensures stability during transit and minimizes the risk of bag rupture. The plastic bag material provides a moisture barrier, preserving the bulk density and preventing caking. When ordering full container loads, calculate the total volume based on the pallet footprint rather than just the net weight to avoid logistical bottlenecks at the receiving warehouse.

Inventory rotation should follow a first-in-first-out (FIFO) protocol. While the chemical stability of HALS 866 is robust, prolonged storage in non-climate-controlled environments may lead to compaction, altering the bulk density from the specified 0.40 g/ml. Regular inspection of packaging integrity is recommended upon receipt.

Leveraging Non-Dangerous Goods Classification for UV Absorber 866 Shipping Efficiency

UV Absorber 866 is classified as non-dangerous goods for transport. This classification significantly reduces shipping costs and administrative overhead compared to hazardous chemical shipments. Procurement teams can utilize standard freight carriers without requiring specialized hazmat documentation or emergency response plans.

The thermal weight loss data supports this safety profile. With only 1.0% weight loss at 215°C and 5.0% at 255°C (TGA, heating rate 20°C/min in air), the material demonstrates high thermal stability during standard shipping conditions. This stability minimizes the risk of decomposition or off-gassing during transit in heated containers.

Leveraging the non-dangerous goods status allows for faster customs clearance and broader carrier options. It also simplifies warehouse storage requirements, as specialized hazardous material storage cabinets or segregated zones are not mandated. This efficiency translates directly into lower landed costs for the raw material.

Strategic Sourcing and Supply Chain Stability for UV Absorber 866

Supply chain stability for specialty chemicals requires vetting manufacturers based on production capacity and quality control consistency. When sourcing UV Absorber 866, prioritize suppliers who provide batch-specific COAs verifying purity and physical constants. Consistency in bulk density and particle size is as critical as chemical purity for automated dosing systems.

For formulators seeking equivalence to existing market standards, understanding the performance benchmarks is essential. You can review our technical analysis on UV Absorber 866 Drop-In Replacement Tinuvin Pur 866 Tpu to validate performance parity in polyurethane applications. Strategic sourcing involves securing long-term agreements that guarantee specification adherence over multiple production runs.

NINGBO INNO PHARMCHEM CO.,LTD. maintains rigorous quality control protocols to ensure every batch meets the 0.40 g/ml bulk density and purity specifications required for high-performance stabilization. Supply chain resilience is bolstered by maintaining adequate safety stock and verifying lead times against production schedules.

Evaluate potential suppliers on their ability to provide technical support regarding formulation adjustments. A reliable partner will offer data on synergistic effects with other additives and assist in troubleshooting dispersion issues. This technical collaboration ensures that the procurement of UV Absorber 866 contributes directly to the quality and longevity of the final polymer product.

Procurement decisions should be driven by data verification rather than price alone. Verify the GC-MS purity limits and TGA volatility data before finalizing contracts. Consistent quality in raw materials prevents downstream processing issues such as plate-out, discoloration, or reduced weatherability in the finished goods.

For custom synthesis requirements or to validate our drop-in replacement data, consult with our process engineers directly.