Fluorescent Brightener 135 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1041-00-5 |
| Product name | Fluorescent Brightener 135 |
| 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 Fluorescent Brightener 135
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Fluorescent Brightener 135 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Fluorescent Brightener 135
| Industry | Application | Process |
|---|---|---|
| Plastics | Whitening of polyvinyl chloride (PVC) plastics | Added during compounding, plastication, or extrusion processing |
| Plastics | Whitening of polystyrene (PS) and ABS resins | Blended with resin pellets prior to extrusion or injection molding |
| Textiles & Printing | Whitening of synthetic fibers (e.g., acetate, nylon, polyester) | Applied in textile dyeing and finishing processes or padding operations |
| Coatings | Whitening of oil-based paints, coatings, and printing inks | Dispersed into the coating base via grinding or high-speed dispersion mixing |
| Other | Surface whitening of leather | Incorporated into leather finishing formulations |
Manufacturing Quality Control of Fluorescent Brightener 135
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at 345 nm. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via reaction of iodine with sulfur dioxide in the presence of water and base. |
| Ash Content | Gravimetric Analysis | Residue mass after incineration at 550 C determined by weight difference before and after high-temperature ashing. |
| Heavy Metals (as Pb) | AAS | Atomic absorption spectroscopy measures absorbance of ground-state atoms in flame or graphite furnace after acid digestion. |
| Chloride Impurity | Potentiometric Titration | Titration with silver nitrate using silver indicator electrode to detect endpoint via potential change from AgCl precipitation. |
| pH of Aqueous Solution | pH Meter Measurement | Direct potentiometric measurement of hydrogen ion activity in a 1% w/v aqueous suspension using calibrated pH electrode. |
| Solubility in Water | Visual Observation and Filtration | Assessment of complete dissolution and absence of undissolved particles in distilled water at 25 C after 30 min stirring. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents by gas chromatography with flame ionization detection. |
| Color (APHA) | Spectrophotometric Comparison | Measurement of yellowness index using spectrophotometer at 430 nm against APHA color scale standards. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity pattern to determine volume-based particle size distribution in aqueous dispersion. |
| Residue on Ignition | Gravimetric Analysis | Mass of non-volatile residue after heating at 750 C for 30 min, expressed as percentage of original sample weight. |
| Sulfated Ash | Gravimetric Analysis | Residue mass after ignition following treatment with sulfuric acid to convert metals to sulfates, then weighing. |
Technical Specifications of Fluorescent Brightener 135
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (LC-MS) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 178–182°C |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
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 Fluorescent Brightener 135
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Fluorescent Brightener 135
Packaging of Fluorescent Brightener 135
Industrial Fluorescent Brightener 135 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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