1,5-DIBROMONAPHTHALENE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 7351-74-8 |
| Product name | 1,5-DIBROMONAPHTHALENE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Electronic GradeMaterial GradeReagent GradeIndustrial GradeSpecialty Grade |
| Packaging | 25KG/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 1,5-DIBROMONAPHTHALENE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1,5-DIBROMONAPHTHALENE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1,5-DIBROMONAPHTHALENE
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of antitumor agents and steroid compounds | Used as an organic synthesis intermediate to construct carbon frameworks via coupling reactions |
| Liquid Crystal Materials | Preparation of liquid crystal monomers and intermediates | Applied in synthesizing naphthalene-ring-containing liquid crystal compounds to modulate liquid crystal properties |
| Organic Synthesis | Production of functional dyes and pigments | Bromination introduced via electrophilic substitution or coupling reactions for subsequent functionalization |
| Research | Reaction mechanism studies of aromatic compounds | Investigation of substitution reactivity and metal-catalyzed coupling reactions of bromonaphthalenes |
Manufacturing Quality Control of 1,5-DIBROMONAPHTHALENE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantifies 1,5-dibromonaphthalene peak area relative to a calibration curve using an internal or external standard. |
| Related Substances | Gas Chromatography-Mass Spectrometry (GC-MS) | Identifies and semi-quantifies impurities (e.g., mono-brominated isomers, dibromonaphthalene isomers, brominated naphthalenes) based on retention time and mass spectral matching. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Detects and quantifies volatile organic solvents (e.g., dichloromethane, toluene) by equilibrium partitioning into headspace followed by GC-FID analysis. |
| Moisture Content | Karl Fischer Titration (Coulometric mode) | Determines water content via electrochemical generation of iodine and stoichiometric reaction with water in anhydrous methanol-based reagent. |
| Acid Value | Acid-Base Titration (NaOH in ethanol) | Measures acidic impurities (e.g., HBr, brominated phenols) by titration with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Heavy Metals (Pb, Cd, Hg, As) | Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) | Quantifies trace metal contaminants after microwave-assisted acid digestion, based on element-specific atomic emission intensities. |
| Chloride Content | Ion Chromatography (IC) with conductivity detection | Separates and quantifies chloride ions (from residual chlorinated impurities or catalyst residues) using anion-exchange column and suppressed conductivity detection. |
| Melting Point | Capillary Melting Point Apparatus | Determines the temperature range at which solid transitions to liquid, indicating purity and identity via comparison to reference standard. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of particulates or phase separation against specified criteria (e.g., white to off-white crystalline powder). |
| Loss on Drying (LOD) | Gravimetric Analysis (105 C, 2 h) | Measures volatile matter loss by weight difference before and after controlled heating under defined conditions. |
| Sulfated Ash | Gravimetric Analysis (550 C, 3 h) | Determines inorganic residue content after combustion in sulfuric acid medium and high-temperature incineration. |
| Bulk Density | ASTM D1895 Method A | Measures mass per unit volume of freely settled material using a calibrated cylinder and balance, indicating flow and handling characteristics. |
Technical Specifications of 1,5-DIBROMONAPHTHALENE
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (GC) |
| Melting Point | 67–71°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Conforms to reference spectrum |
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 1,5-DIBROMONAPHTHALENE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1,5-DIBROMONAPHTHALENE
Packaging of 1,5-DIBROMONAPHTHALENE
Industrial 1,5-DIBROMONAPHTHALENE 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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