C.I. 20730 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 3905-19-9 |
| Product name | C.I. 20730 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty 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 C.I. 20730
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk C.I. 20730 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of C.I. 20730
| Industry | Application | Process |
|---|---|---|
| Textile Printing & Dyeing | Direct dyeing and printing of cotton and viscose rayon, delivering reddish-brown to brown-red shades | Exhaust dyeing, jigger dyeing, or printing (requires sodium chloride or sodium sulfate as dyeing accelerators; after fixation, soaping is required) |
| Papermaking | Coloring of paper for production of colored packaging and decorative papers | Added to pulp or applied during surface sizing |
| Leather Processing | Dyeing of leather, particularly chrome-tanned leathers, yielding lightfast brown-red shades | Exhaust dyeing at pH 4–6, typically conducted in combination with cationic auxiliaries |
Manufacturing Quality Control of C.I. 20730
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-phase HPLC with UV detection at characteristic wavelength based on peak area comparison to reference standard. |
| Related Substances | HPLC-DAD | Detects and quantifies structurally related impurities using diode array detection for spectral confirmation and peak purity assessment. |
| Moisture Content | Karl Fischer Titration | Determines water content via coulometric or volumetric titration where iodine reacts stoichiometrically with water in a methanol-based reagent. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic residue after controlled high-temperature ashing and subsequent weighing. |
| Heavy Metals | ICP-OES | Quantifies trace metal contaminants (e.g., Pb, Cd, Hg, As) by plasma excitation and elemental emission spectroscopy. |
| Chloride Content | Potentiometric Titration | Measures chloride ions using silver nitrate titrant with silver/silver chloride electrode detecting endpoint potential change. |
| pH of Aqueous Suspension | pH Meter Measurement | Determines acidity/basicity of a standardized suspension in water using calibrated pH electrode. |
| Particle Size Distribution | Laser Diffraction | Analyzes particle size distribution by measuring angular variation in intensity of laser light scattered by dispersed particles. |
| Bulk Density | USP <616> Method I | Measures mass per unit volume of powder poured into a graduated cylinder under standardized conditions. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using capillary tube and controlled heating rate. |
| Organic Volatile Impurities | GC-FID | Identifies and quantifies residual solvents using gas chromatography with flame ionization detection and external calibration. |
| Ash Chloride Content | Gravimetric Chloride Precipitation | Quantifies chloride in ash residue by precipitation as silver chloride followed by filtration and weighing. |
Technical Specifications of C.I. 20730
| Test Item | Specification |
|---|---|
| Appearance | Off-white to light yellow powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 245-250°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
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 C.I. 20730
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of C.I. 20730
Packaging of C.I. 20730
Industrial C.I. 20730 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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