Bromothymol Blue Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 76-59-5 |
| Product name | Bromothymol Blue |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty GradeReagent 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) |
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Documents We Provide for Bromothymol Blue
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Bromothymol Blue Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Bromothymol Blue
| Industry | Application | Process |
|---|---|---|
| Chemical Analysis | Acid-base indicator | Used in acid-base titrations for pH range 6.0–7.6 |
| Pharmaceuticals | Intermediate in drug synthesis | Applied as a raw material in the synthesis of certain pharmaceuticals |
| Dye Industry | Synthesis of pigments and dyes | Applied in the synthesis of specific dye types |
| Education & Research | Laboratory teaching and scientific research | Used for pH indication in chemical experiments |
Manufacturing Quality Control of Bromothymol Blue
| Detection Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color and physical state of the sample. Qualified products should be light pink or brownish-green powder without visible impurities. |
| Identification | Ultraviolet-Visible Spectrophotometry (UV-Vis) | Dissolve the sample in a specified solvent (e.g., 0.01 mol/L NaOH), measure characteristic absorption peaks at approximately 420 nm and 617 nm, and compare with reference standard. |
| Content Determination | Spectrophotometry / Acid-Base Titration | Spectrophotometry: Calculate content based on absorbance at maximum absorption wavelength; Acid-base titration: Utilize the acid-base indicator properties of the substance to determine active ingredient content via titration with standardized acid/base solution. |
| pH Color Change Range Test | pH Gradient Colorimetry | Add the sample to a series of buffer solutions with different pH values, observe color changes (typically from yellow to blue within pH 6.0–7.6), and verify whether the color change range meets specifications. |
| Drying Loss | Thermogravimetric Analysis (TGA) or Oven Drying Method | Dry a known amount of sample at 105°C until constant weight, calculate the percentage of weight loss to control moisture and volatile impurity levels. |
| Residue on Ignition (Sulfated Ash) | Gravimetric Method | Ignite the sample at high temperature, treat the residue with sulfuric acid, and perform constant-weight determination to measure inorganic impurity content. |
| Heavy Metal Content | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After sample digestion, measure concentrations of heavy metals such as lead, mercury, and cadmium to ensure compliance with pharmacopoeial or reagent purity standards. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Use reversed-phase HPLC to separate the main component from potential synthetic intermediates or degradation products, assessing purity and impurity limits. |
Technical Specifications of Bromothymol Blue
| Test Item | Specification |
|---|---|
| Appearance | Dark red to purple crystalline powder |
| Purity | >=98.0% |
| Melting Point | 200-202°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
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 Bromothymol Blue
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Bromothymol Blue
Packaging of Bromothymol Blue
Industrial Bromothymol Blue 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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