DIRECT YELLOW 27 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 10190-68-8 |
| Product name | DIRECT YELLOW 27 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25KG/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 DIRECT YELLOW 27
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk DIRECT YELLOW 27 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of DIRECT YELLOW 27
| Industry | Application | Process |
|---|---|---|
| Textile dyeing and printing industry | Dyeing and printing of cotton, viscose rayon, and their blends | Exhaust dyeing, jigger dyeing, pad dyeing, and direct printing |
| Textile dyeing and printing industry | Dyeing of silk and wool fabrics | Neutral or mildly acidic dyeing |
| Leather industry | Leather coloring | Leather exhaust dyeing |
| Paper industry | Paper dyeing | In-pulp dyeing or surface-sizing dyeing |
| Biotechnology and pharmaceutical industry | Microscopic staining of biological sections and cellular tissues | Microscopy slide staining |
Manufacturing Quality Control of DIRECT YELLOW 27
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies main component concentration via absorbance at characteristic wavelength using Beer-Lambert law. |
| Moisture Content | Karl Fischer Titration | Determines water content by coulometric or volumetric titration with iodine-based reagent. |
| Ash Content | Gravimetric Analysis | Measures inorganic residue after high-temperature incineration and weighing of residual ash. |
| pH of Aqueous Solution | pH Meter Measurement | Evaluates acidity/basicity of 1% w/v aqueous dispersion using calibrated pH electrode. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals by atomizing sample and measuring absorption of element-specific radiation. |
| Water Solubility | Gravimetric Filtration | Determines soluble fraction by dissolving sample in water, filtering, drying, and weighing residue. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution by analyzing angular variation in laser light scattering pattern. |
| Color Strength (Tinting Strength) | Reflectance Spectrophotometry | Compares color intensity relative to standard via Kubelka-Munk transformed reflectance data. |
| Organic Impurities (Related Substances) | HPLC-UV | Separates and quantifies impurities using reversed-phase chromatography with UV detection. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile residue after controlled heating at 500-600 C and precise weighing. |
| Sulfate Ash | Gravimetric Analysis | Determines sulfate-containing inorganic residue after ignition with sulfuric acid pretreatment. |
| Bulk Density | Volumetric Displacement | Measures mass per unit volume using standardized funnel and graduated cylinder method. |
Technical Specifications of DIRECT YELLOW 27
| Test Item | Specification |
|---|---|
| Appearance | Yellow crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Soluble in water with yellow clear solution |
| Color (APHA/Pt-Co) | <=100 APHA |
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 DIRECT YELLOW 27
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of DIRECT YELLOW 27
Industrial DIRECT YELLOW 27 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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