Bromocresol Green Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 62625-32-5 |
| Product name | Bromocresol Green |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Reagent 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 Bromocresol Green
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Bromocresol Green Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Bromocresol Green
| Industry | Application | Process |
|---|---|---|
| Biobiochemistry | pH indicator | Used as an acid-base indicator in buffer solutions, with a color transition range of pH 4.0–5.6 (yellow → blue-green) |
| Clinical diagnostics | Auxiliary reagent for enzyme activity assays | Applied in certain enzyme-coupled reaction systems to monitor reaction progress via color change |
| Educational laboratories | Demonstration in chemistry and biology instruction | Used as a stain or indicator in acid-base titrations or protein electrophoresis |
| Environmental monitoring | Water pH testing | Applied as test paper or solution reagent for rapid determination of aqueous pH |
| Food industry | Indirect analytical aid (not added directly) | Used as an analytical reagent in food component analysis; not intended for direct use in food products |
Manufacturing Quality Control of Bromocresol Green
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (C21H14Br4O5SNa) | UV-Vis Spectrophotometry | Quantification based on absorbance at characteristic wavelength (e.g., 617 nm) in alkaline buffer, using molar absorptivity and Beer-Lambert law. |
| Loss on Drying | Gravimetric Analysis | Mass loss measured after drying at 105 C for 2 hours under controlled humidity and atmospheric pressure. |
| Residue on Ignition | Gravimetric Analysis | Weight of inorganic residue remaining after charring and incineration at 600-700 C. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Multi-element quantification by measuring atomic emission intensities of digested sample in argon plasma. |
| Chloride Impurity | Potentiometric Titration | Titration with silver nitrate using silver indicator electrode; endpoint detected by potential inflection. |
| Sulfate Impurity | Gravimetric Analysis | Precipitation as barium sulfate followed by filtration, drying, and weighing of the precipitate. |
| pH of 1% Aqueous Solution | pH Potentiometry | Measurement using calibrated glass electrode in aqueous solution at 25 C. |
| Solubility in Water | Visual Observation | Assessment of complete dissolution in distilled water at 20 C with gentle agitation over 5 minutes. |
| Organic Volatile Impurities | GC-FID | Separation and detection of residual solvents using capillary column and flame ionization detection. |
| Related Substances | HPLC-UV | Separation on reversed-phase C18 column with UV detection; identification and quantification relative to reference standard. |
| Iron (Fe) Content | AAS | Atomic absorption measurement at 248.3 nm after acid digestion and matrix matching. |
| Appearance (Color and Form) | Visual Inspection | Comparison against reference standard under controlled white light; assessment of free-flowing green powder or crystalline solid. |
Technical Specifications of Bromocresol Green
| Test Item | Specification |
|---|---|
| Appearance | Green to blue-green powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.2% |
| Single Impurity | <=0.3% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Solubility | Freely soluble in water; slightly soluble in ethanol |
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 Bromocresol Green
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Bromocresol Green
Packaging of Bromocresol Green
Industrial Bromocresol Green 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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