Acid Red 51 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 568-63-8 |
| Product name | Acid Red 51 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty GradeCosmetic GradeFood 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 Acid Red 51
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Acid Red 51 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Acid Red 51
| Industry | Application | Process |
|---|---|---|
| Food Industry | Food coloring agent | Dissolution, mixing, and formulation |
| Pharmaceutical Industry | Coating and tablet coloring | Spraying, drying, and compression |
| Cosmetics Industry | Coloring of color cosmetics | Dispersion, emulsification, and color adjustment |
| Printing & Packaging | Coloring of printing inks and packaging materials | Stirring, grinding, and coating |
| Textile Industry | Textile dyeing | Immersion dyeing, fixation, and drying |
Manufacturing Quality Control of Acid Red 51
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Measures absorbance at characteristic wavelength (approx. 526 nm) and calculates concentration using molar absorptivity and Beer-Lambert law. |
| Loss on Drying | Gravimetric (Thermogravimetric) | Determines volatile content by measuring mass loss after drying at specified temperature (e.g., 105 C) to constant weight. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals after wet digestion by measuring atomic absorption of lead at 283.3 nm in air-acetylene flame. |
| Arsenic | ICP-OES | Measures arsenic emission intensity at 193.7 nm after sample digestion and dilution, using internal standard correction. |
| Chloride | Argentometric Titration (Mohr method) | Titrates chloride ions with standardized silver nitrate solution using potassium chromate indicator; endpoint is red-brown Ag2CrO4 precipitate. |
| Sulfate | Gravimetric (Barium Sulfate Precipitation) | Precipitates sulfate as BaSO4, filters, dries, and weighs to determine sulfate content based on stoichiometric conversion. |
| pH of 1% Aqueous Solution | Potentiometric (pH Meter) | Measures hydrogen ion activity in a 1% w/v aqueous solution using calibrated glass electrode system. |
| Water-Soluble Matter | Gravimetric Filtration | Determines insoluble residue after dissolving sample in water, filtering through ashless filter paper, drying, and weighing. |
| Residue on Ignition | Gravimetric (Ignition at 500-600 C) | Measures non-volatile inorganic residue after charring and igniting sample at high temperature to constant weight. |
| Color Value (E127) | UV-Vis Spectrophotometry | Calculates specific absorbance (E1% 1cm) at 526 nm in 0.01 M NaOH solution per defined concentration and path length. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separates and quantifies residual solvents (e.g., ethanol, acetone) using capillary column and flame ionization detection. |
| Microbial Contamination | Plate Count (Aerobic Plate Count) | Estimates viable aerobic mesophilic microorganisms by colony formation on nutrient agar after incubation at 30-35 C for 48-72 h. |
Technical Specifications of Acid Red 51
| Test Item | Specification |
|---|---|
| Appearance | Maroon powder |
| Purity | >=98.0% (HPLC) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm (as Pb) |
| Residue on Ignition | <=0.1% |
| Solubility | Freely soluble in water; insoluble in chloroform and ether |
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 Acid Red 51
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Acid Red 51
Packaging of Acid Red 51
Industrial Acid Red 51 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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