UV Absorber 234 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 70321-86-7 |
| Product name | UV Absorber 234 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for UV Absorber 234
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk UV Absorber 234 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of UV Absorber 234
| Industry | Application | Process |
|---|---|---|
| Plastics Industry | Light stabilizer for polycarbonate (PC) | Added during PC resin synthesis or processing to prevent yellowing and maintain transparency under high-temperature processing and end-use conditions |
| Plastics Industry | Light stabilizer for polyethylene terephthalate (PET) | Used during PET resin polymerization or extrusion processing to protect bottles, films, and fibers against UV-induced degradation |
| Plastics Industry | Light stabilizer for polybutylene terephthalate (PBT) | Incorporated into PBT engineering plastics to enhance weather resistance of automotive components and electronic/electrical enclosures |
| Plastics Industry | Light stabilizer for polyamide (nylon, PA) | Added during nylon spinning or molding to improve oxidation and UV resistance of fibers and injection-molded parts |
| Coatings & Inks | Light stabilizer for automotive coatings | Incorporated into automotive clearcoats and basecoats to prevent gloss loss, discoloration, and cracking |
| Coatings & Inks | Light stabilizer for industrial coatings | Applied in wood coatings, coil coatings, and other industrial systems to improve coating durability under outdoor exposure |
| Coatings & Inks | Light stabilizer for inks | Added during ink manufacturing to prevent UV-induced fading of printed materials and extend shelf life |
| Chemical Fibers | Light stabilizer for high-performance fibers | Added during polyester or nylon fiber spinning to prevent loss of tensile strength and color change |
| Photosensitive Materials | Additive for photosensitive materials | Used as a UV absorber in specific photosensitive formulations to modulate sensitivity and suppress fogging (formulation-dependent) |
Manufacturing Quality Control of UV Absorber 234
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color and state (typically white to pale yellow crystalline powder) to determine if it meets standard requirements. |
| Melting Point | Capillary Melting Point Determination | Determined using a digital melting point apparatus or traditional capillary method; UV-234 has a typical melting range of approximately 137–141°C, used to assess purity. |
| Content (Main Component Purity) | High-Performance Liquid Chromatography (HPLC) | Utilizes a C18 reverse-phase chromatographic column with a UV detector (e.g., at 280 nm), employing external standard or area normalization methods to quantify the main component content. |
| Volatile Matter | Loss on Drying Method (Oven Method) | Dried at a specified temperature (e.g., 105°C) until constant weight is achieved, calculating the percentage of mass loss to control moisture and volatile impurities. |
| Ash Content | High-Temperature Incineration Method | The sample is incinerated in a high-temperature furnace (e.g., at 800°C) until constant weight is reached. The residue should be below the specified limit (e.g., ≤0.1%). |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After acid digestion, lead, cadmium, mercury, arsenic, etc., are measured for total or individual content to ensure compliance with RoHS or industry limits. |
| Organic Impurities | HPLC or GC-MS | Identify and quantify synthetic byproducts or degradation products (e.g., isomers, intermediates) through chromatographic separation combined with mass spectrometry. |
| UV Absorption Performance | UV-Visible Spectrophotometry | Measure absorbance at specific wavelengths (e.g., 300–400 nm) to verify its functionality as a UV absorber. |
| Color | Platinum-Cobalt Colorimetric Method or Colorimeter Method | Compare the sample solution with standard color scales or use a colorimeter to measure L*a*b* values to control product color consistency. |
| Solubility | Solubility Test | Test solubility in specified solvents (e.g., toluene, ethanol, cyclohexane) to ensure applicability in target systems. |
Technical Specifications of UV Absorber 234
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (by LC-MS) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 148–152°C |
| Identification (IR) | Consistent with reference spectrum |
| Residue on Ignition | <=0.1% |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of UV Absorber 234
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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Industrial UV Absorber 234 Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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