Solvent Black 3 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 4197-25-5 |
| Product name | Solvent Black 3 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial 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 Solvent Black 3
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Solvent Black 3 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Solvent Black 3
| Industry | Application | Process |
|---|---|---|
| Biopharmaceuticals | Fat and lipid staining | Used for staining tissue sections |
| Biopharmaceuticals | Neutrophil identification | Used for staining blood smears |
| Clinical Diagnostics | Blood cell morphology analysis | Used for microscopic examination |
| Histopathology | Lipid droplet and lipophilic substance detection | Used for staining paraffin or frozen sections |
| Biomedical Research | Bone marrow cell analysis | Used for cytochemical staining |
| Industrial Staining | Lipid labeling of non-biological materials | Used for immersion staining |
Manufacturing Quality Control of Solvent Black 3
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies Sudan Black B concentration based on absorbance at characteristic wavelength (e.g., ~620 nm) using a calibrated standard curve. |
| Loss on Drying | Gravimetric Analysis | Measures mass loss after drying at specified temperature and time to determine volatile content including moisture and solvents. |
| Residue on Ignition | Gravimetric Analysis | Determines inorganic ash content by ignition of sample at high temperature followed by weighing of residual residue. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals by atomizing the acid-digested sample and measuring absorption of specific elemental wavelengths. |
| Arsenic | ICP-MS | Detects trace arsenic via inductively coupled plasma mass spectrometry after acid digestion and matrix-matched calibration. |
| Chlorinated Benzene Impurities | Gas Chromatography (GC) | Separates and quantifies chlorinated aromatic impurities using capillary column and electron capture or mass selective detection. |
| Related Substances | High Performance Liquid Chromatography (HPLC) | Identifies and quantifies structurally related dyes and synthesis intermediates using reversed-phase C18 column and UV detection. |
| pH of Aqueous Suspension | Potentiometric Titration | Measures hydrogen ion activity in a standardized aqueous suspension using calibrated pH electrode. |
| Solubility in Organic Solvents | Visual Assessment | Evaluates complete dissolution in specified solvents (e.g., chloroform, acetone) under controlled temperature and agitation conditions. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using calibrated capillary tube method per USP/EP guidelines. |
| Bulk Density | Graduated Cylinder Method | Calculates mass per unit volume of freely settled powder using standardized cylinder and weight measurement. |
| Particle Size Distribution | Laser Diffraction | Measures particle size distribution by analyzing angular scattering pattern of laser light passing through dispersed sample. |
Technical Specifications of Solvent Black 3
| Test Item | Specification |
|---|---|
| Appearance | Black to dark brown crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 142-146°C |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Soluble in chloroform, benzene, and xylene; slightly soluble in ethanol; insoluble in water |
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 Solvent Black 3
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Solvent Black 3
Industrial Solvent Black 3 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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