BTB Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 34722-90-2 |
| Product name | BTB |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeReagent 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) |
QUOTE TYPE
PACKAGING TYPE
TOTAL QUANTITY(KG)
PREFERRED SHIPPING METHOD
YOUR COMPANY
YOUR E-MAIL
Calculate Summary
Based on current marketvolatility and material availability.
Documents We Provide for BTB
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk BTB Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of BTB
| Industry | Application | Process |
|---|---|---|
| Chemical Analysis | Acid-base indicator for endpoint detection in titrations | Dissolved in water or ethanol solution, added to the sample, and color change observed (pH 6.0–7.6; yellow → blue) |
| Biomedical Research | pH indicator in cell culture | Added to culture medium to monitor pH shifts induced by metabolism and maintain physiological stability |
| Environmental Monitoring | Rapid pH testing of aqueous samples | Formulated as test strips or liquid reagents for on-site colorimetric determination of water acidity/alkalinity |
| Educational Laboratories | Demonstration tool in secondary and university chemistry instruction | Used in fundamental experiments such as acid-base titrations and buffer solutions to visually illustrate the pH transition range |
| Microbiology | Detection of bacterial acid/alkali production | Incorporated into agar plates or liquid culture media to assess microbial metabolic characteristics via chromogenic response |
Manufacturing Quality Control of BTB
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies bromothymol blue sodium salt concentration based on absorbance at characteristic wavelength (e.g., 617 nm) using Beer-Lambert law. |
| Loss on Drying | Gravimetric (Thermogravimetry) | Measures mass loss after drying at specified temperature (e.g., 105 C) to determine volatile content including water and solvents. |
| Residue on Ignition | Gravimetric (Sulfated Ash) | Determines inorganic impurities by ignition of sample at high temperature (e.g., 700-800 C) and weighing residual sulfate ash. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Quantifies chloride ions via argentometric titration using silver nitrate and a silver indicator electrode. |
| Sulfate Impurity | Gravimetric (Barium Sulfate Precipitation) | Precipitates sulfate as BaSO4, filters, dries, and weighs to determine sulfate content. |
| Heavy Metals (as Pb) | AAS (Atomic Absorption Spectroscopy) | Measures total heavy metal content (expressed as lead) by atomization and absorption of specific wavelengths in flame or graphite furnace. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Determines acidity/basicity of a defined aqueous solution (e.g., 1% w/v) using calibrated pH electrode. |
| Iron Impurity | ICP-OES (Inductively Coupled Plasma Optical Emission Spectrometry) | Quantifies trace iron by plasma excitation and detection of element-specific emission lines. |
| Organic Volatile Impurities | GC-FID (Gas Chromatography with Flame Ionization Detection) | Separates and quantifies residual solvents (e.g., methanol, acetone) using capillary column and FID response. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of solid particles in suspension by analyzing angular variation of scattered laser light. |
| Color (APHA) | Visual or Instrumental Colorimetry | Compares solution color intensity against APHA platinum-cobalt standards to assess degradation or impurity-related discoloration. |
| Water Content | Karl Fischer Titration | Determines total water content via coulometric or volumetric titration with iodine-based reagent reacting stoichiometrically with water. |
Technical Specifications of BTB
| Test Item | Specification |
|---|---|
| Appearance | Dark red to purple crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=20 ppm |
| 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
|
|
Download COA of BTB
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of BTB
Packaging of BTB
Industrial BTB 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.
Use Bulk
Supply Factory
Direct ISO 9001
Certified Samples
Available Stable
Supply