Solvent Yellow 157 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 27908-75-4 |
| Product name | Solvent Yellow 157 |
| 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 Solvent Yellow 157
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Solvent Yellow 157 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Solvent Yellow 157
| Industry | Application | Process |
|---|---|---|
| Pigments & Coatings Industry | Colorant | Used to impart yellow coloration in solvent-based coatings, enhancing coating appearance |
| Plastics Industry | Colorant | Applied as a dispersible color pigment during the molding of polyolefins, polystyrene, and other plastics |
| Ink Manufacturing | Yellow Dye | Suitable for formulating gravure and flexographic printing inks |
| Textile Industry | Dyeing Auxiliary | Employed in synthetic fiber dyeing processes, exhibiting good affinity for polyester substrates |
| Leather Processing | Leather Dyeing | Applied in solvent-based dyeing processes to achieve uniform yellow coloration on leather |
| Cosmetics Industry | Color Additive (for specified applications only) | After purification, used as a colorant in cosmetic products such as nail polish |
Manufacturing Quality Control of Solvent Yellow 157
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by peak area comparison against certified reference standard using reversed-phase chromatography and UV detection at 420-450 nm. |
| Moisture Content | Karl Fischer Titration | Volumetric titration with iodine-based reagent where water reacts stoichiometrically to determine trace water content. |
| Ash Content | Gravimetric Analysis (Ignition at 550 C) | Residue mass after high-temperature incineration of sample, expressed as percentage of original weight. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Atomic absorption measurement of metal ion concentration after acid digestion and matrix matching. |
| Chlorinated Impurities | GC-ECD | Separation by gas chromatography followed by electron capture detection for halogenated organic impurities. |
| Residual Solvents | GC-FID | Quantitative analysis of volatile solvents using flame ionization detection after headspace or direct injection. |
| Particle Size Distribution | Laser Diffraction | Measurement of scattered laser light intensity to calculate size distribution based on Mie theory. |
| pH of Aqueous Suspension | Potentiometric Method | pH electrode measurement of 1% w/v aqueous suspension in distilled water. |
| Color Strength (K/S Value) | Reflectance Spectrophotometry | Calculation of Kubelka-Munk function from diffuse reflectance data measured at lambda-max. |
| Water Soluble Matter | Gravimetric Filtration | Mass difference before and after filtration and drying of water extract; reported as % w/w. |
| Organic Volatile Impurities | GC-MS | Identification and quantification of non-aqueous volatile impurities using mass spectral library matching. |
| Bulk Density | Tap Density Measurement | Mass per unit volume after standardized mechanical tapping of a known powder mass in a graduated cylinder. |
Technical Specifications of Solvent Yellow 157
| Test Item | Specification |
|---|---|
| Appearance | Yellow crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.2% |
| Single Impurity | <=0.3% |
| Water Content (KF) | <=0.5% |
| Melting Point | 195-199°C |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Color (APHA/Pt-Co) | Not applicable |
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 Solvent Yellow 157
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Solvent Yellow 157
Industrial Solvent Yellow 157 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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