ACID VIOLET 7 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 4321-69-1 |
| Product name | ACID VIOLET 7 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial 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 ACID VIOLET 7
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk ACID VIOLET 7 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of ACID VIOLET 7
| Industry | Application | Process |
|---|---|---|
| Textile Industry | Dyeing agent | Used for dyeing protein fibers such as wool and silk under acidic dye-bath conditions |
| Biology/Histology | Cell and tissue staining | Applied as a biological stain for nuclear and cytoplasmic staining in microscopic sections, commonly used for counterstaining or contrast staining |
| Paper Industry | Paper coloring | Employed in colored paper dyeing processes to enhance visual appearance |
| Printing Inks | Colorant component | Functioning as a colorant in ink formulations to produce printing inks with specific hues |
| Cosmetics | Temporary colorant | Used for temporary coloring in certain cosmetic products (e.g., hair care formulations), compliant with relevant safety regulations |
Manufacturing Quality Control of ACID VIOLET 7
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Measures absorbance at characteristic wavelength (510-520 nm) and calculates concentration using Beer-Lambert law and certified reference standard. |
| Moisture Content | Karl Fischer Titration | Quantifies water via coulometric or volumetric titration with iodine-based reagent, based on stoichiometric reaction with water. |
| Ash Content | Gravimetric Analysis (Ignition at 550 C) | Determines inorganic residue after high-temperature incineration and subsequent weighing of the residual ash. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Measures absorption of specific wavelengths by atomized metal ions in flame or graphite furnace; quantifies total heavy metals after acid digestion. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Detects endpoint via silver chloride precipitation using silver nitrate titrant and chloride-selective electrode. |
| pH of Aqueous Solution | pH Meter Measurement | Measures hydrogen ion activity in a standardized aqueous solution (e.g., 1% w/v) using calibrated glass electrode. |
| Water Solubility | Visual Dissolution Test | Evaluates complete dissolution in distilled water at specified temperature (e.g., 25 C) and concentration (e.g., 10 g/L) within defined time. |
| Organic Impurities (Related Substances) | HPLC with UV Detection | Separates and quantifies structurally related compounds using reversed-phase column and UV detection at 254/510 nm against reference standards. |
| Iron Content | Colorimetric Method with 1,10-Phenanthroline | Forms orange-red complex with Fe2+ under reducing conditions; measures absorbance at 510 nm. |
| Sulfate Content | Gravimetric Analysis as BaSO4 | Precipitates sulfate as barium sulfate under controlled acidity and temperature, followed by filtration, drying, and weighing. |
| Bulk Density | Tap Density Measurement | Determines mass per unit volume after standardized tapping (e.g., 100 taps) of sample in calibrated cylinder. |
| Particle Size Distribution | Laser Diffraction | Analyzes scattering pattern of laser beam passed through dispersed sample to calculate size distribution based on Mie theory. |
Technical Specifications of ACID VIOLET 7
| Test Item | Specification |
|---|---|
| Appearance | Red crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Freely soluble in water and ethanol |
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 7
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of ACID VIOLET 7
Industrial ACID VIOLET 7 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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