UV-327 Powder Bulk Price & Technical Specs | NINGBO INNO
CAS 3864-99-1 Identity Confirmation via GC-MS Purity Verification Protocols
In high-volume polymer stabilization, confirming the chemical identity of CAS 3864-99-1 is the foundational step before commercial negotiation. While standard Certificates of Analysis (COA) provide baseline data, rigorous procurement requires verification beyond basic HPLC area normalization. At NINGBO INNO PHARMCHEM CO.,LTD., we prioritize GC-MS fragmentation pattern analysis to ensure the benzotriazole backbone structure matches the required chlorobenzotriazole derivative profile. This distinction is critical because structural isomers can exhibit similar retention times in HPLC but differ significantly in UV absorption cutoffs.
From a field engineering perspective, trace impurities not always listed on a standard COA can impact the final product color during mixing. We have observed that specific residual intermediates, if not controlled during synthesis, can lead to initial yellowness index shifts in clear polycarbonate applications. Therefore, our identity confirmation protocols include mass spectral verification to rule out these edge-case contaminants before the material enters the supply chain.
UV-327 Powder Bulk Price Drivers: 99.0% Min HPLC vs. GC-MS Identity Standards
When evaluating the UV-327 Powder Bulk Price, procurement managers must distinguish between purity measured by HPLC versus identity confirmed by GC-MS. A purity claim of 99.0% min by HPLC is the industry standard, but the cost driver often lies in the removal of volatile organic compounds and heavy residues that affect processing stability. Lower-priced alternatives may meet the 99.0% threshold but fail to account for non-UV-active impurities that accumulate in extrusion screws.
Price volatility is also linked to the consistency of the chlorination step in the synthesis pathway. Inconsistent chlorination can lead to batch-to-batch variance in thermal stability. Our pricing structure reflects the additional quality control steps required to maintain consistent thermal degradation thresholds, ensuring that the material performs reliably across different polymer matrices such as PVC and polyolefins.
Validating COA Parameters: Melting Point 154-157°C and Volatile Matter 0.5% Max
Technical validation of the COA is essential for predicting processing behavior. The melting point range of 154-157°C is a critical indicator of crystalline purity. Deviations outside this range often signal the presence of isomers or incomplete reaction products. Furthermore, volatile matter must be strictly controlled at 0.5% max. Excessive volatiles can cause micro-voids in the final polymer product during high-shear extrusion, leading to mechanical weakness.
The following table outlines the key technical parameters required for industrial grade acceptance:
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | Yellowish Powder | Visual |
| Purity | 99.0% Min | HPLC |
| Melting Point | 154-157°C | DSC / Capillary |
| Volatile Matter | 0.5% Max | Loss on Drying |
| Ash Content | 0.1% Max | Gravimetric |
| Transmittance (460nm) | 95.0% Min | UV-Vis Spectrophotometry |
| Transmittance (500nm) | 97.0% Min | UV-Vis Spectrophotometry |
Please refer to the batch-specific COA for exact values pertaining to your shipment, as minor variations within specification limits are normal for fine chemical production.
Industrial Bulk Packaging Standards for UV Absorber UV-327 Supply Chain Security
Supply chain security for UV Absorber UV-327 relies on robust physical packaging to prevent moisture uptake and contamination. Standard export packaging involves 25kg cartons lined with double-layer plastic bags to ensure integrity during ocean freight. For larger volume requirements, we utilize IBCs or 210L drums depending on the physical form and customer handling capabilities. It is vital to note that packaging discussions focus strictly on physical containment and logistics safety.
For formulators evaluating formulation compatibility, understanding the physical flow properties is as important as chemical specs. We have documented detailed performance benchmarks regarding compatible benzotriazole formulation alternatives to assist in transition planning without disrupting production lines. Proper storage in cool, dry conditions is recommended to maintain the volatile matter specification below the 0.5% threshold during long-term warehousing.
Optical Performance Specs: Transmittance 460nm 95.0% Min and 500nm 97.0% Min Verification
Optical clarity is a non-negotiable parameter for UV-327 when used in transparent polymers like polycarbonate or acrylic resin. The transmittance specifications of 95.0% min at 460nm and 97.0% min at 500nm ensure that the additive does not impart unwanted coloration while providing necessary UV protection. Low transmittance values often indicate the presence of colored impurities or degradation products formed during synthesis.
A critical non-standard parameter we monitor is the thermal degradation threshold during processing. While the melting point is 154-157°C, the material must withstand extrusion temperatures up to 280°C without significant decomposition. In field tests, we have observed that batches with marginal transmittance specs sometimes exhibit earlier onset of thermal degradation, releasing trace amines that can catalyze polymer breakdown. Therefore, verifying transmittance is indirectly a check on thermal stability history.
Frequently Asked Questions
What is the minimum order quantity for bulk procurement?
Our standard minimum order quantity aligns with full pallet loads to optimize logistics efficiency, typically starting at 500kg, though sample quantities are available for technical validation.
Can you provide a COA before shipment?
Yes, a batch-specific COA including HPLC purity and melting point data is provided for every shipment prior to dispatch for your quality assurance records.
What payment terms are accepted for international orders?
We accept T/T and L/C for international transactions, with specific terms negotiable based on order volume and established credit history.
How is the product packaged for export?
The product is packaged in 25kg cartons with inner plastic liners, or in IBCs and drums for larger volumes, ensuring protection against moisture and physical damage.
Sourcing and Technical Support
Reliable sourcing of CAS 3864-99-1 requires a partner who understands both the chemical specifications and the logistical complexities of global chemical trade. NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing transparent technical data and secure supply chains for our polymer industry partners. We focus on delivering consistent quality that meets the rigorous demands of industrial extrusion and molding processes. For custom synthesis requirements or to validate our drop-in replacement data, consult with our process engineers directly.