ACID YELLOW 99 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 10343-58-5 |
| Product name | ACID YELLOW 99 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial GradeCosmetic GradeFood 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 ACID YELLOW 99
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk ACID YELLOW 99 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of ACID YELLOW 99
| Industry | Application | Process |
|---|---|---|
| Textiles | Dyeing of protein fibers such as wool and silk | Acid dyeing process |
| Leather | Coloring of chrome-tanned leather | Leather immersion dyeing or spray application |
| Paper | Coloring of specialty papers, including decorative and packaging papers | Paper coating or impregnation process |
| Plastics | Coloring of plastic products for select polymer materials | Plastic melt compounding process |
| Cosmetics | Trace amounts used in temporary hair dyes or color cosmetics (subject to safety regulations) | Formulation mixing process |
Manufacturing Quality Control of ACID YELLOW 99
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Measures absorbance at characteristic wavelength to quantify dye concentration via Beer-Lambert law |
| Moisture Content | Karl Fischer Titration | Quantifies water content by coulometric or volumetric reaction with iodine and Karl Fischer reagent |
| Ash Content | Gravimetric Analysis | Determines inorganic residue after high-temperature incineration and weighing of residual ash |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Measures absorption of specific wavelengths by atomized metal ions in flame or graphite furnace |
| Chloride Impurity | Potentiometric Titration | Detects endpoint of silver nitrate titration using silver indicator electrode and reference electrode |
| Sulfate Impurity | Gravimetric Analysis | Precipitates sulfate as barium sulfate, followed by filtration, drying, and weighing |
| pH of Aqueous Solution | pH Meter Measurement | Measures hydrogen ion activity in 1% aqueous solution using calibrated glass electrode system |
| Water Solubility | Visual Dissolution Test | Evaluates complete dissolution in specified volume of water at defined temperature and time |
| Organic Impurities (Related Substances) | HPLC-UV | Separates and quantifies impurities using reversed-phase chromatography and UV detection |
| Particle Size Distribution | Laser Diffraction | Analyzes scattered laser light intensity to determine size distribution of dry or dispersed particles |
| Bulk Density | Tap Density Measurement | Determines mass per unit volume after standardized tapping of sample in graduated cylinder |
| Color Strength (Relative) | Comparative Visual Assessment | Compares color intensity of standard and test solutions under controlled lighting and D65 illuminant |
Technical Specifications of ACID YELLOW 99
| Test Item | Specification |
|---|---|
| Appearance | Orange-brown 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 and ethanol |
| Color (APHA/Pt-Co) | <=500 APHA (1% aqueous solution) |
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 ACID YELLOW 99
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of ACID YELLOW 99
Industrial ACID YELLOW 99 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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