CROCEIN SCARLET 7B Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 6226-76-2 |
| Product name | CROCEIN SCARLET 7B |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Reagent GradeFood GradeCosmetic Grade |
| Packaging | 25KG/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 CROCEIN SCARLET 7B
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk CROCEIN SCARLET 7B Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of CROCEIN SCARLET 7B
| Industry | Application | Process |
|---|---|---|
| Textiles | Dyeing cotton, wool, silk, and other fibers | Conventional dyeing process, applied in acidic medium |
| Leather | Dyeing leather products | Dyeing via immersion or coating |
| Printing | Preparation of lake pigments for printing inks | Lake formation reaction to produce insoluble pigments |
| Cosmetics | Coloration of cosmetic products (e.g., lipsticks, eyeshadows) | Incorporated into formulations, compliant with safety regulations |
| Food | Coloration of foodstuffs (permitted only where authorized by regional regulations) | Added to specified food categories within regulatory limits |
| Laboratory | Biological staining agent for cell or tissue staining | Microscopic examination of biological specimens |
Manufacturing Quality Control of CROCEIN SCARLET 7B
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Measures absorbance at characteristic wavelength (e.g., ~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 of water with iodine and sulfur dioxide. |
| Inorganic Ash | Gravimetric Analysis (Ignition at 550 C) | Residue after high-temperature ignition is weighed; represents non-volatile inorganic impurities. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Multi-element detection by measuring atomic emission intensities from plasma-excited sample aerosol. |
| Chloride Content | Potentiometric Titration with AgNO3 | Measures chloride ion concentration via silver nitrate titration monitored by silver indicator electrode. |
| pH of Aqueous Solution | pH Meter Measurement | Determines hydrogen ion activity in a standardized aqueous suspension (e.g., 1% w/v) using calibrated glass electrode. |
| Water Solubility | Gravimetric Filtration and Drying | Compares mass of undissolved residue after defined dissolution, filtration, and drying under controlled conditions. |
| Organic Impurities (Related Substances) | HPLC-UV | Separates and quantifies structurally related compounds using reversed-phase column and UV detection at specified wavelength. |
| Iron Content | AAS (Flame Atomic Absorption Spectroscopy) | Measures iron absorption at 248.3 nm after acid digestion and dilution; based on ground-state atom absorption. |
| Sulfate Content | Gravimetric Precipitation as BaSO4 | Precipitates sulfate as barium sulfate, filters, dries, and weighs the insoluble salt. |
| Bulk Density | Cylindrical Funnel Method (ASTM D1895) | Measures mass per unit volume of freely poured powder into a calibrated cylinder. |
| Particle Size Distribution | Laser Diffraction | Analyzes scattering pattern of laser beam passing through dispersed sample to calculate size distribution based on Mie theory. |
Technical Specifications of CROCEIN SCARLET 7B
| Test Item | Specification |
|---|---|
| Appearance | Red crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | 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 CROCEIN SCARLET 7B
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of CROCEIN SCARLET 7B
Industrial CROCEIN SCARLET 7B 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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