ACID YELLOW 25 (C.I. 18835) Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 6359-85-9 |
| Product name | ACID YELLOW 25 (C.I. 18835) |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial 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 ACID YELLOW 25 (C.I. 18835)
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk ACID YELLOW 25 (C.I. 18835) Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of ACID YELLOW 25 (C.I. 18835)
| Industry | Application | Process |
|---|---|---|
| Textile Industry | Dye for fiber dyeing | Applied as an acid dye for protein fibers and nylon |
| Printing Industry | Pigment for ink coloring | Incorporated into ink formulations to impart a yellow hue |
| Plastics Industry | Colorant for coloring plastic products | Dispersed in plastic substrates to achieve a yellow appearance |
| Coatings Industry | Pigment for coating coloration | Blended into coating systems to deliver a bright yellow shade |
| Cosmetics Industry | Colorant for cosmetic color formulation | Used within regulatory limits in specified cosmetic products |
Manufacturing Quality Control of ACID YELLOW 25 (C.I. 18835)
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination based on peak area comparison with certified reference standard using reversed-phase chromatography and UV detection at 420 nm. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in methanol-based solvent. |
| 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 (Flame or Graphite Furnace) | Atomic absorption spectroscopy measuring absorbance of ground-state atoms vaporized in flame or graphite tube. |
| Chloride Impurity | Potentiometric Titration | Titration with silver nitrate using silver indicator electrode to detect endpoint based on AgCl precipitation potential shift. |
| Sulfate Impurity | Gravimetric Analysis | Precipitation as BaSO4 followed by filtration, drying, and weighing of the insoluble sulfate salt. |
| pH of 1% Aqueous Solution | pH Meter Measurement | Direct potentiometric measurement using calibrated glass electrode in aqueous dispersion at 25 C. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents using gas chromatography with flame ionization detection. |
| Color Strength (Tinting Strength) | UV-Vis Spectrophotometry | Comparison of absorbance ratio at lambda-max against standard dye solution under standardized dilution and cell path length. |
| Particle Size Distribution | Laser Diffraction | Analysis of light scattering pattern from dispersed particles to calculate volume-based size distribution. |
| Bulk Density | Graduated Cylinder Method | Mass per unit volume measured by gently pouring sample into calibrated cylinder and recording settled volume. |
| Thermal Stability (Onset Decomposition Temp) | TGA | Temperature at which 1% mass loss occurs during controlled heating under nitrogen, measured by thermogravimetric analysis. |
Technical Specifications of ACID YELLOW 25 (C.I. 18835)
| Test Item | Specification |
|---|---|
| Appearance | Orange crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=20 ppm |
| Color (APHA/Pt-Co) | <=100 |
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 25 (C.I. 18835)
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of ACID YELLOW 25 (C.I. 18835)
Industrial ACID YELLOW 25 (C.I. 18835) 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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