Acid Violet 49 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1694-09-3 |
| Product name | Acid Violet 49 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial 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 Violet 49
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Acid Violet 49 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Acid Violet 49
| Industry | Application | Process |
|---|---|---|
| Textile Dyeing and Printing | Dyeing and printing of protein fibers (e.g., wool, silk) and polyamide fibers (e.g., nylon) | Atmospheric-pressure boiling dyeing at pH 2–6; acidity adjusted with sulfuric acid or acetic acid; compatible with other acid dyes for shade matching |
| Leather Industry | Leather dyeing (particularly suitable for chrome-tanned leather) | Immersion dyeing at pH 3–5; post-dyeing fixation required to improve wet fastness |
| Paper Manufacturing | Coloration of specialty papers and decorative papers | Direct addition to pulp or dyeing during surface sizing; cationic auxiliaries required to enhance retention |
| Biological Staining | Nuclear staining in histology (as a hematoxylin substitute) | Used in conjunction with iron-based mordants (e.g., ammonium iron(III) sulfate) for nuclear staining in H&E staining |
Manufacturing Quality Control of Acid Violet 49
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies dye concentration based on absorbance at characteristic lambda-max in specified solvent and pH. |
| Moisture Content | Karl Fischer Titration | Measures water content via coulometric or volumetric titration with iodine-based reagent. |
| Inorganic Ash | Gravimetric Analysis | Determines non-volatile residue after controlled high-temperature incineration. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Simultaneously quantifies trace metal impurities after acid digestion using plasma excitation and optical emission detection. |
| Chloride Content | Potentiometric Titration with AgNO3 | Measures chloride ions by titration with silver nitrate using silver indicator electrode. |
| pH of Aqueous Solution | pH Meter Measurement | Determines acidity/basicity of a standardized aqueous suspension or solution at specified concentration and temperature. |
| Substantivity (Fastness to Washing) | Spectrophotometric Fastness Testing | Evaluates color retention after standardized washing cycle by comparing reflectance before and after treatment. |
| Particle Size Distribution | Laser Diffraction | Analyzes size distribution of solid particles in dispersion using angular scattering pattern of laser beam. |
| Organic Impurities (Related Substances) | HPLC-UV | Separates and quantifies structurally related impurities using reversed-phase chromatography and UV detection. |
| Sulfated Ash | Gravimetric Analysis | Measures residue after incineration with sulfuric acid pretreatment to convert metals to sulfates. |
| Bulk Density | Tap Density Measurement | Determines mass per unit volume of powder after standardized tapping in calibrated cylinder. |
| Solubility in Water | Visual Dissolution Test | Assesses complete dissolution in distilled water at specified temperature and concentration within defined time. |
Technical Specifications of Acid Violet 49
| Test Item | Specification |
|---|---|
| Appearance | Dark green to black crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 245-250°C |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Soluble in water and ethanol; forms violet 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 Violet 49
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Acid Violet 49
Packaging of Acid Violet 49
Industrial Acid Violet 49 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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