ETHYL ORANGE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 62758-12-7 |
| Product name | ETHYL ORANGE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty 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 ETHYL ORANGE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk ETHYL ORANGE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of ETHYL ORANGE
| Industry | Application | Process |
|---|---|---|
| Analytical Chemistry | Acid-base titration indicator (pH transition range: 3.4–4.8; red → orange → yellow) | Dissolved directly in water or aqueous ethanol to prepare standard indicator solutions for endpoint detection in strong acid–weak base titrations |
| Textile Dyeing & Printing | Acid dyes for dyeing protein fibers such as wool and silk | Applied in a weakly acidic bath (pH 4–6), where dye uptake occurs via hydrogen bonding and van der Waals forces; acetic acid is added to adjust pH, with temperature controlled at 40–60°C |
| Biological Staining | Contrast staining of tissue sections and cell nuclei (commonly used in combination with methylene blue) | Employed in Heidenhain’s AZAN staining method (hematoxylin–orange G); processed through standard paraffin sectioning steps including fixation, deparaffinization, staining, differentiation, dehydration, and mounting |
| Food Testing | Reagent for diazotization–coupling colorimetric determination of nitrite content | After diazotization with sulfanilic acid, coupled with N-(1-naphthyl)ethylenediamine to form a magenta-colored azo dye for spectrophotometric quantification |
Manufacturing Quality Control of ETHYL ORANGE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies ethyl orange sodium salt concentration based on absorbance at characteristic wavelength (e.g., ~465 nm) using Beer-Lambert law. |
| Moisture Content | Karl Fischer Titration | Determines water content via coulometric or volumetric titration with iodine-based reagent reacting stoichiometrically with water. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Measures hydrogen ion activity in a 1% w/v aqueous solution using calibrated pH electrode and reference electrode. |
| Heavy Metals (as Pb) | ICP-OES | Quantifies total heavy metal impurities (e.g., Pb, Cd, Hg, As) after acid digestion by atomic emission spectroscopy at element-specific wavelengths. |
| Chloride Impurity | Argentometric Titration (Mohr method) | Determines chloride ions by titration with standard silver nitrate solution using potassium chromate indicator for endpoint detection. |
| Sulfate Impurity | Gravimetric Analysis | Precipitates sulfate as barium sulfate under controlled conditions and determines mass after drying and weighing. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic residue after high-temperature (700-800 C) ignition of sample and subsequent weighing. |
| Organic Impurities (Related Substances) | HPLC-UV | Separates and quantifies structurally related compounds (e.g., unreacted precursors, degradation products) using reversed-phase chromatography and UV detection. |
| Sodium Content | Flame Photometry | Quantifies sodium ion concentration by measuring intensity of characteristic emission wavelength (589 nm) in atomized flame. |
| Iron Impurity | AAS (Atomic Absorption Spectroscopy) | Measures iron concentration by absorption of light at 248.3 nm by ground-state Fe atoms in acetylene-air flame. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Determines volatile content by measuring mass loss upon heating to 105 C for specified time under controlled atmosphere. |
| Particle Size Distribution | Laser Diffraction | Determines size distribution of solid particles by analyzing angular variation in laser light scattering pattern. |
Technical Specifications of ETHYL ORANGE
| Test Item | Specification |
|---|---|
| Appearance | Orange powder |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Identification (NMR) | 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 ETHYL ORANGE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of ETHYL ORANGE
Packaging of ETHYL ORANGE
Industrial ETHYL ORANGE 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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