METHYL VIOLET Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 603-47-4 |
| Product name | METHYL VIOLET |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeMaterial GradeReagent 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 METHYL VIOLET
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk METHYL VIOLET Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of METHYL VIOLET
| Industry | Application | Process |
|---|---|---|
| Textile Dyeing & Printing | Used as an acid dye for dyeing protein fibers such as wool and silk | Dyeing by immersion or pad application at 80–100°C in a weakly acidic bath (pH 4–6), typically with leveling agents |
| Biological Staining | Used for nuclear staining in tissue sections (e.g., as the nuclear stain component in Mallory’s trichrome staining) | After deparaffinization and rehydration of standard paraffin sections, stain for 5–10 minutes at room temperature in a 1% aqueous solution of methyl violet, followed by water rinsing for differentiation |
| Analytical Chemistry | Used as an acid-base indicator (transition range pH 0.0–2.0, red → yellow) | Prepared as a 0.04% ethanol solution and added dropwise to the test solution; pH in the strong acid range is determined based on color change |
| Inks & Coatings | Used in small quantities as a purple colorant for specialty writing inks and artists’ pigments | Dispersed in water or ethanol and mixed with colloidal stabilizers (e.g., gum arabic), then ground to produce a stable color concentrate |
Manufacturing Quality Control of METHYL VIOLET
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies main component concentration using molar absorptivity at characteristic absorption maximum (approx. 580 nm) in suitable solvent. |
| Loss on Drying | Gravimetric Analysis (Thermogravimetry) | Measures mass loss after drying at specified temperature (e.g., 105 C) to determine volatile content including moisture and solvents. |
| Residue on Ignition | Gravimetric Analysis (Sulfated Ash) | Determines inorganic impurities by ignition of sample to constant weight after sulfuric acid treatment. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals (e.g., Pb, Cd, Hg, As) after wet digestion, based on element-specific atomic absorption. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Measures chloride ion concentration via argentometric titration using silver nitrate and silver indicator electrode. |
| Sulfate Impurity | Gravimetric Analysis (Barium Sulfate Precipitation) | Determines sulfate as insoluble BaSO4 precipitate formed after addition of BaCl2 in acidic medium. |
| Water Content | Karl Fischer Titration | Measures trace water content by coulometric or volumetric reaction with iodine, sulfur dioxide, and base in methanol. |
| pH of Aqueous Solution | pH Potentiometry | Determines acidity/basicity of a standardized aqueous suspension or solution using calibrated pH electrode. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Identifies and quantifies residual solvents (e.g., methanol, acetone) using flame ionization detection and reference standards. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of solid particles in suspension by analyzing angular variation in laser light scattering. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using controlled heating and visual observation. |
| Color Value | Visual Comparison or Instrumental Colorimetry | Evaluates color intensity and hue against standard solutions or using CIE Lab* parameters in standardized illuminant. |
Technical Specifications of METHYL VIOLET
| Test Item | Specification |
|---|---|
| Appearance | Purple crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 138-142°C |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic faint floral odor |
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 METHYL VIOLET
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| Lot/Batch Number | *Required fields | |
NMR Spectra of METHYL VIOLET
Packaging of METHYL VIOLET
Industrial METHYL VIOLET 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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