Fluorescent Brightener 87 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 12768-91-1 |
| Product name | Fluorescent Brightener 87 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeCosmetic GradeFood 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 87
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Fluorescent Brightener 87 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Fluorescent Brightener 87
| Industry | Application | Process |
|---|---|---|
| Textile Industry | Used for whitening polyester, nylon, and blended synthetic fabrics | Applied via high-temperature, high-pressure dyeing or thermosol dyeing, typically at 120–130°C in combination with disperse dyes |
| Detergent Industry | Acts as an optical brightener in laundry powders and liquid detergents | Adsorbs onto fabric surfaces during washing and emits blue light under UV excitation to counteract yellowing |
| Plastics Industry | Used for whitening plastic products such as polyethylene terephthalate (PET) and polyamide (PA) | Blended with resin prior to plastic processing; imparts a bright white appearance after extrusion or injection molding |
| Paper Industry | Used for whitening premium and specialty papers | Incorporated during pulp preparation or surface sizing, and applied to paper fibers via coating or immersion |
Manufacturing Quality Control of Fluorescent Brightener 87
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at 345-365 nm, calibrated against certified reference standard. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration based on the reaction of water with iodine and sulfur dioxide in pyridine/methanol medium. |
| Ash Content | Gravimetric Analysis (Ignition at 550 C) | Residue mass after incineration at 550 C in a muffle furnace, expressed as weight percent of original sample. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Atomic absorption spectroscopy measuring absorbance of ground-state atoms vaporized in flame or graphite tube. |
| Chloride Content | Potentiometric Titration with AgNO3 | Titration using silver nitrate with silver indicator electrode; endpoint detected by potential change due to AgCl precipitation. |
| pH of 1% Aqueous Solution | pH Meter Measurement | Electrochemical measurement of hydrogen ion activity in a standardized aqueous suspension using calibrated pH electrode. |
| Organic Impurities (Related Substances) | HPLC-DAD | Separation and detection of structurally related compounds using HPLC with diode-array detection for spectral confirmation. |
| Solubility in Water | Visual Inspection & Filtration | Qualitative assessment of complete dissolution in distilled water at 25 C followed by filtration to detect insoluble residue. |
| Bulk Density | Graduated Cylinder Method | Mass of material freely poured into a calibrated cylinder divided by its settled volume. |
| Particle Size Distribution | Laser Diffraction | Analysis of light scattering pattern from dispersed particles to calculate size distribution based on Mie theory. |
| Residue on Ignition | Gravimetric Analysis (Ignition at 750 C) | Mass of non-volatile residue after heating at 750 C; used to assess inorganic filler or salt content. |
| UV Absorbance Ratio (A345/A275) | UV-Vis Spectrophotometry | Ratio of absorbance at characteristic peaks (345 nm and 275 nm) to assess structural integrity and absence of degradation products. |
Technical Specifications of Fluorescent Brightener 87
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 210-215°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Soluble in dimethylformamide and dichloromethane; slightly soluble in ethanol; insoluble in water |
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 87
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Fluorescent Brightener 87
Industrial Fluorescent Brightener 87 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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