China Factory Direct
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| CAS number | 3115-68-2 |
| Product name | Tetrabutylphosphonium bromide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeReagent GradeIndustrial 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) |
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 | Phase-transfer catalyst | Used in the synthesis of chiral pharmaceutical intermediates |
| Pharmaceuticals | Catalyst | Applied in constructing biologically active molecules |
| Chemical Manufacturing | Phase-transfer catalyst | Facilitates reactions between organic compounds and inorganic reagents |
| Chemical Manufacturing | Ion-pair reagent | Used for separation, analysis, and purification of organic compounds |
| Materials | Functional additive | Enhances performance of polymer materials |
| Analytical Chemistry | Reference standard | Used in gas chromatography or liquid chromatography analysis |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantification based on peak area comparison against a certified reference standard using reversed-phase chromatography. |
| Water Content | Karl Fischer titration | Electrochemical titration where iodine reacts stoichiometrically with water in a methanol-based solvent system. |
| Residual Solvents (e.g., THF, MeOH) | Gas Chromatography (GC-FID) | Separation and quantification of volatile solvents by retention time and flame ionization response. |
| Inorganic Bromide (Br-) | Ion Chromatography (IC) | Anion separation on a high-capacity column with suppressed conductivity detection for quantitative bromide determination. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Multi-element detection via plasma ionization and mass spectrometric quantification at trace levels. |
| Chloride Impurity | Potentiometric titration with AgNO3 | Silver nitrate titration monitored by silver electrode potential change at the endpoint. |
| Melting Point | Capillary melting point apparatus | Thermal transition observed visually as solid-to-liquid phase change under controlled heating rate. |
| Appearance | Visual inspection | Assessment of physical state, color, and clarity against specified criteria under controlled lighting. |
| Residue on Ignition | Gravimetric analysis | Mass loss after high-temperature ashing; residue weighed to determine non-volatile inorganic content. |
| pH of Aqueous Solution | pH meter measurement | Electrochemical measurement of hydrogen ion activity in a standardized aqueous suspension or solution. |
| Organophosphorus Content | Phosphorus-specific NMR (31P NMR) | Quantitative determination of phosphorus-containing species based on chemical shift and integration relative to an internal standard. |
| Microbial Contamination | Membrane filtration and plate count | Viable microorganisms captured on filter membrane, then cultured and enumerated on appropriate agar media. |
| Test Item | Specification |
|---|---|
| Appearance | White to light yellow crystal |
| Purity | ≥98.0% |
| HBr | ≤0.6% |
| [PR3H]Br | ≤1.0% |
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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.