China Factory Direct
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| CAS number | 4301-14-8 |
| Product name | ETHYNYLMAGNESIUM BROMIDE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as a synthetic intermediate in constructing complex molecular frameworks | Grignard reactions, coupling reactions |
| Agrochemicals | Used in the synthesis of active pharmaceutical ingredients (APIs) | Substitution reactions involving Grignard reagents |
| Materials Science | Used to synthesize functional polymers or monomers | Coordination polymerization, chain-growth reactions |
| Fine Chemicals | Used to produce specialty chemicals or additives | Grignard reagent–mediated addition reactions |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (C2H2BrMg content) | Acid-Base Titration with Standardized HCl | Reaction of Grignard reagent with excess standardized HCl, followed by back-titration with NaOH to determine active magnesium content. |
| Moisture Content | Karl Fischer Titration | Quantitative reaction of water with iodine and sulfur dioxide in a methanol/pyridine medium, measured potentiometrically. |
| Residual Solvent (THF/Ether) | Gas Chromatography (GC-FID) | Separation and quantification of volatile solvents using flame ionization detection with internal standard calibration. |
| Inorganic Bromide (Br-) | Ion Chromatography (IC) | Anion exchange separation followed by conductivity detection to quantify bromide ion impurity. |
| Total Magnesium Content | EDTA Complexometric Titration | Complexation of Mg2+ with EDTA at pH 10 using Eriochrome Black T indicator for endpoint detection. |
| Heavy Metals (Pb, Cd, Ni, Fe) | ICP-OES | Multi-element quantification after acid digestion by measuring atomic emission intensities at characteristic wavelengths. |
| Appearance and Color | Visual Inspection | Comparison against standard color scale (e.g., APHA) under controlled lighting; assessment of clarity and particulate presence. |
| pH of Aqueous Hydrolysate | Potentiometric pH Measurement | pH determination of aqueous hydrolysis solution (after controlled quenching) using calibrated glass electrode. |
| Chloride Impurity (Cl-) | Silver Nitrate Titration (Mohr method) | Precipitation titration using AgNO3 with K2CrO4 indicator; endpoint signaled by formation of red Ag2CrO4 precipitate. |
| Non-Volatile Residue | Gravimetric Analysis | Evaporation of known sample volume to dryness at 105 C, followed by weighing of residue after cooling in desiccator. |
| Peroxide Content | Iodometric Titration | Reaction of peroxides with excess potassium iodide under acidic conditions, followed by titration of liberated iodine with standardized Na2S2O3. |
| Stability (Gas Evolution Rate) | Manometric Gas Evolution Test | Measurement of pressure increase in sealed vessel containing sample and moisture trap, indicating decomposition rate over time. |
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline solid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=20 ppm |
| Identification (NMR) | Conforms to reference standard |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.