Crystal violet lactone Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1552-42-7 |
| Product name | Crystal violet lactone |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeElectronic 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 Crystal violet lactone
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Crystal violet lactone Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Crystal violet lactone
| Industry | Application | Process |
|---|---|---|
| Carbonless Copy Paper | Acts as a dye precursor; develops color upon pressure contact with acidic clay for carbonless copy paper or forms | Encapsulated with leuco dyes and developers in microcapsules, coated onto paper substrate; color development occurs upon capsule rupture under pressure |
| Thermal Recording Materials | Functions as a thermal dye; reacts with developers upon heating for use in fax paper, labels, and receipts | Dispersed together with developers (e.g., bisphenol A) and sensitizers in the coating formulation; localized heating by thermal print heads triggers color development |
| Plastics Industry | Used as a thermochromic pigment for temperature indication or color-changing toys | Blended with developers into the polymer matrix and processed via injection molding or extrusion; reversible color change occurs with temperature variation |
| Analytical Chemistry | Serves as an acid-base or redox indicator in titration analysis | Dissolved in solvent to prepare indicator solutions; color change (yellow → green → violet) is induced by pH or potential shift |
| Anti-Counterfeiting Technology | Employed in thermochromic anti-counterfeiting inks for banknotes and identification documents, where heating induces visible color change | Mixed with developers in ink vehicles; printed onto substrates and activated by heating (e.g., friction) to achieve reversible color transition |
Manufacturing Quality Control of Crystal violet lactone
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies crystalline violet lactone content using reversed-phase HPLC with UV detection at ~580 nm based on peak area comparison against reference standard. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities (e.g., crystal violet base, leuco forms) using gradient HPLC with UV detection. |
| Loss on Drying | Gravimetric (105 C drying) | Measures volatile content by weight loss after drying at 105 C to constant mass. |
| Residue on Ignition | Gravimetric (ash test) | Determines inorganic residue by ignition at 600–700 C followed by weighing of residual ash. |
| Heavy Metals | AAS (Lead, Cadmium, Mercury, Arsenic) | Quantifies total heavy metals by atomic absorption spectroscopy after acid digestion and matrix-matched calibration. |
| Chloride Content | Ion Chromatography | Separates and quantifies chloride ions using anion-exchange column with conductivity detection. |
| Sulfate Content | Turbidimetry | Measures sulfate as barium sulfate precipitate formed upon addition of BaCl2 solution; quantified by turbidity. |
| pH of Aqueous Suspension | Potentiometric pH measurement | Determines pH of a defined suspension (e.g., 1% w/v in water) using calibrated pH electrode. |
| Particle Size Distribution | Laser Diffraction | Analyzes particle size distribution by measuring angular variation in laser light scattering intensity. |
| Bulk Density | Graduated Cylinder Method | Measures mass per unit volume of freely settled powder in standardized cylinder under controlled conditions. |
| Microbial Contamination | Membrane Filtration | Detects aerobic microorganisms by filtration, membrane transfer to nutrient agar, and colony enumeration after incubation. |
| Water Content | Karl Fischer Titration | Quantifies trace water via coulometric or volumetric titration with iodine-based reagent reacting stoichiometrically with water. |
Technical Specifications of Crystal violet lactone
| Test Item | Specification |
|---|---|
| Appearance | Yellow crystalline solid |
| Purity | >=98.0% (by LC-MS) |
| Melting Point | 235–240 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
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 Crystal violet lactone
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Crystal violet lactone
Packaging of Crystal violet lactone
Industrial Crystal violet lactone 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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