Tetramethylammonium hydroxide pentahydrate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 10424-65-4 |
| Product name | Tetramethylammonium hydroxide pentahydrate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeElectronic 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 Tetramethylammonium hydroxide pentahydrate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Tetramethylammonium hydroxide pentahydrate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Tetramethylammonium hydroxide pentahydrate
| Industry | Application | Process |
|---|---|---|
| Semiconductor Manufacturing | Photoresist Stripper | Removes photoresist residues and cleans semiconductor surfaces |
| Electronic Materials | Wet Etching | Functions as a component of etchant solutions for wet etching of silicon wafers or other materials |
| Chemical Synthesis | Intermediate | Serves as a building block in the synthesis of other organic compounds, such as dyes and pharmaceuticals |
| Fiber Processing | Textile Modification | Enhances fiber properties, including antistatic performance |
| Coatings Industry | Coating Additive | Improves coating leveling and adhesion |
| Petrochemicals | Catalyst | Acts as a catalyst or co-catalyst to facilitate chemical transformations in specific reactions |
Manufacturing Quality Control of Tetramethylammonium hydroxide pentahydrate
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Assay (Content Determination) | Acid-Base Titration | Titrating TMAH aqueous solution with standard hydrochloric acid solution, using phenolphthalein or a mixed indicator to determine the endpoint. The TMAH content is then calculated. Suitable for high-concentration samples. |
| Ion Chromatography (IC) | Separates and quantifies TMA⁺ cations, detects them via a conductivity detector, and calculates concentration using a calibration curve. Offers high accuracy and is suitable for low-concentration detection. | |
| pH Value | pH Meter Measurement | Directly measures the pH of the TMAH solution using a calibrated pH meter to evaluate its alkalinity. Used for batch-to-batch consistency control. |
| Moisture Content | Karl Fischer Titration | Uses KF reagent to quantitatively react with water in the sample. Moisture content is determined by coulometric or volumetric methods. Applicable to organic solvent systems. |
| Metal Impurities | Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | Atomizes the sample and ionizes it at high temperature to detect various metal ions (e.g., Fe, Cu, Na). High sensitivity, meeting semiconductor-grade requirements. |
| Atomic Absorption Spectroscopy (AAS) | Measures the content of specific metal elements. Suitable for quantitative analysis of known target metals. Lower cost but lower throughput. | |
| Anionic Impurities | Ion Chromatography (IC) | Detects common anionic impurities such as Cl⁻, SO₄²⁻, NO₃⁻ to assess purity. Commonly used in quality control of electronic-grade TMAH. |
| Color/Appearance | Visual Color Comparison or Spectrophotometry | Visually checks whether the solution is clear, colorless, or slightly yellow. UV-Vis spectrophotometer may be used to measure absorbance at specific wavelengths when necessary. |
| Organic Impurities | Gas Chromatography (GC) or High-Performance Liquid Chromatography (HPLC) | Analyzes potential organic by-products (e.g., alcohols, amines), especially suitable for solvent-based TMAH (e.g., TMAH in methanol). |
| Density | Densimeter or Pycnometer Method | Measures solution density with temperature correction, indirectly reflecting concentration and purity. Used for rapid on-site testing. |
Technical Specifications of Tetramethylammonium hydroxide pentahydrate
| Test Item | Specification |
|---|---|
| Appearance | White to almost white crystalline powder |
| Purity | >=98.0% (T) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic faint ammonia-like odor |
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 Tetramethylammonium hydroxide pentahydrate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Tetramethylammonium hydroxide pentahydrate
Safety Information of Tetramethylammonium hydroxide pentahydrate
| Pictograms |   |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of Tetramethylammonium hydroxide pentahydrate
Industrial Tetramethylammonium hydroxide pentahydrate 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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