1-NAPHTHOL-3,6-DISULFONIC ACID, DISODIUM SALT HYDRATE, TECH. Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 330581-20-9 |
| Product name | 1-NAPHTHOL-3,6-DISULFONIC ACID, DISODIUM SALT HYDRATE, TECH. |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeReagent 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 330581-20-9
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 330581-20-9 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 330581-20-9
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Intermediate for acid mordant dyes | Used in azo coupling reactions to synthesize acid mordant black and related dyes |
| Dye Industry | Intermediate for reactive dyes | Employed as an azo component or diazo component in condensation reactions |
| Analytical Chemistry | Metal ion indicator | Applied in complexometric titrations for metal ion detection |
| Fine Chemicals | Organic synthesis raw material | Processed via sulfonation, diazotization, and other reactions to produce derivatives |
Manufacturing Quality Control of 330581-20-9
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color and condition of the sample. The qualified product should be a white to light yellow crystalline powder, free from visible impurities. |
| Content Determination | UV-Visible Spectrophotometry (UV-Vis) | Utilizes its characteristic absorption peak at a specific wavelength (e.g., around 275 nm), and determines the content of the main component using a standard curve method. |
| Purity Analysis | High-Performance Liquid Chromatography (HPLC) | Uses a reverse-phase C18 column with water-methanol or buffer solution as the mobile phase, detecting impurity peaks and calculating the purity of the main peak. |
| Moisture Content | Karl Fischer Titration | Suitable for accurately determining the moisture content in the sample, especially for compounds containing sulfonic acid groups that are prone to moisture absorption. |
| Sulfonic Acid Group Confirmation | Fourier Transform Infrared Spectroscopy (FT-IR) | Confirms the presence of sulfonic acid groups through characteristic absorption peaks (e.g., S=O stretching vibrations around 1030–1200 cm⁻¹). |
| Heavy Metal Content | Atomic Absorption Spectrometry (AAS) or ICP-MS | Determines residual heavy metals such as lead, arsenic, mercury, and cadmium after sample digestion, ensuring compliance with pharmacopoeia or industrial standards limits. |
| pH Value | pH Meter Measurement | Prepares a certain concentration aqueous solution (e.g., 1% w/v), and measures its acidity or alkalinity using a calibrated pH meter. |
| Solubility | Dissolution Test | Adds the sample to solvents such as water or ethanol and observes its dissolution behavior to determine if it meets the specification requirements. |
| Residue on Ignition (Sulfate Ash) | Gravimetric Method | Measures the mass of residue after high-temperature incineration of the sample, used to evaluate the content of inorganic impurities. |
| Related Substances (Impurities) | HPLC or Thin-Layer Chromatography (TLC) | Checks for possible residual intermediates or degradation products during synthesis; TLC can be used for rapid screening, while HPLC is used for quantitative analysis. |
Technical Specifications of 330581-20-9
| Test Item | Specification |
|---|---|
| Appearance | Light yellow to brown powder or lumps |
| Purity | >=98.0% |
| Total Impurities | <=2.0% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=20 ppm |
| Solubility | Freely soluble in water; forms clear to slightly hazy solution |
| Color (APHA/Pt-Co) | <=150 |
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 330581-20-9
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 330581-20-9
Industrial 330581-20-9 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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