METHYLTHYMOL BLUE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1945-77-3 |
| Product name | METHYLTHYMOL BLUE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeReagent 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 METHYLTHYMOL BLUE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk METHYLTHYMOL BLUE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of METHYLTHYMOL BLUE
| Industry | Application | Process |
|---|---|---|
| Chemical Analysis | Acid-base indicator (red → yellow at pH 1.2–2.8; yellow → blue at pH 8.0–9.6) | Used in titration analysis |
| Laboratory | Complexometric indicator for metal ions (e.g., calcium, magnesium, barium) | Applied in complexometric titration |
| Water Treatment | Reagent for water hardness testing | Applied in colorimetric determination |
| Pharmaceuticals | pH monitoring during pharmaceutical ingredient analysis | Used in quality control |
| Food Testing | Food pH testing (compliant with safety standards) | Applied in rapid testing |
| Education | Demonstration of acid-base color-change principles in chemistry laboratory instruction | Used in teaching experiments |
Manufacturing Quality Control of METHYLTHYMOL BLUE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantification based on absorbance at characteristic wavelength (e.g., ~595 nm) using a calibrated standard curve. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in anhydrous methanol medium. |
| pH of 1% Aqueous Solution | Potentiometric pH Measurement | Determination of hydrogen ion activity using calibrated glass electrode in standardized aqueous solution. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of trace metal impurities after acid digestion and chelation, using element-specific hollow cathode lamp. |
| Sodium Content | Flame Photometry | Measurement of sodium emission intensity at 589 nm in atomized aqueous sample under controlled flame conditions. |
| Chloride Impurity | Argentometric Titration (Mohr method) | Titration with silver nitrate using potassium chromate indicator; endpoint signaled by red silver chromate precipitate. |
| Sulfate Impurity | Gravimetric Analysis | Precipitation as barium sulfate followed by filtration, drying, and weighing of the stable precipitate. |
| Loss on Drying | Thermogravimetric Analysis (TGA) or Oven Drying | Mass loss measured after heating at specified temperature (e.g., 105 C) to remove volatile components. |
| Organic Impurities (Related Substances) | High-Performance Liquid Chromatography (HPLC) | Separation and quantification of structurally related compounds using reversed-phase column and UV detection. |
| Solubility in Water | Visual Inspection and Filtration Test | Assessment of complete dissolution in specified volume of water at defined temperature, followed by clarity check. |
| Residue on Ignition | Gravimetric Ash Test | Mass of non-volatile inorganic residue remaining after high-temperature incineration (e.g., 600 C). |
| Microbial Contamination | Membrane Filtration and Plate Count | Enumeration of aerobic microorganisms following filtration, membrane transfer to nutrient agar, and incubation. |
Technical Specifications of METHYLTHYMOL BLUE
| Test Item | Specification |
|---|---|
| Appearance | Dark purple crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| 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 METHYLTHYMOL BLUE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of METHYLTHYMOL BLUE
Industrial METHYLTHYMOL 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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