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Technical Specifications
Chemical and physical specifications (Industrial Grade)
| No. | Parameter Name | Specifications |
|---|---|---|
| 1 | Molecular Formula | C₁₀H₂₈N₆O₈ |
| 2 | Molecular Weight | 360.4 |
| 3 | CAS Number | 22473-78-5 |
| 4 | Content | ≥ 50.0% |
| 5 | pH value (1% aqueous solution) | 8.5 — 9.5 |
| 6 | Chelating Value | ≥ 138.7 mg CaCO₃/g |
| 7 | Color | ≤ 200 APHA |
| 8 | Specific gravity (25℃) | 1.15 — 1.25 |
| 9 | Appearance | Light straw-colored liquid |
Product Basic Info
| Projects | Description |
|---|---|
| Product Name | Tetraammonium EDTA solution |
| Product Alias | Ethylenediaminetetraacetic acid tetraammonium |
| English Name | EDTA-4NH₄ Solution / Tetraammonium EDTA Solution |
| CAS Number | 22473-78-5 |
| Molecular Formula | C₁₀H₂₈N₆O₈ |
| Molecular Weight | 360.4 |
| Appearance | Light straw-colored liquid |
Product Introduction
Product Overview
EDTA tetrammonium solution (EDTA-4NH₄), molecular formula C₁₀H₂₈N₆O₈, molecular weight 360.4, CAS number 22473-78-5. This product is a light straw-colored liquid with a content of ≥50% and pH 8.5-9.5. It has excellent chelating ability for metal ions, forming stable water-soluble complexes with various divalent and trivalent metal ions.
Core Advantages
- High-Concentration FormulaContent ≥50%, cost-effective to use
- Excellent chelating abilityChelation value ≥ 138.7 mg CaCO₃/g, effectively chelates multiple metal ions
- Broad pH adaptabilityStable and effective within pH 8.5-9.5
- Low ChromaColor ≤200 APHA, high purity, excellent quality
- Liquid FormEasy to dilute and use, convenient for industrial operations
Product Features
Application Guide
Recommended Dosage
| Application Scenarios | Recommended Dosage | Description |
|---|---|---|
| Industrial Cleaning Agent | 5-20% | Adjust according to cleaning requirements and formula |
| Metal Surface Treatment | 1-10% | Used to remove metal ion contamination |
| Water treatment | 10-50 mg/L | Adjust according to water hardness |
| Textile Dyeing & Printing | 0.5-2% | Chelates metal ions to improve dyeing quality |
Usage Suggestions
- Shake well before use to ensure uniform mixing
- Can be mixed with most cleaning agent components, but a premix test is recommended
- Avoid direct mixing with strong acids to prevent reduced chelation effectiveness
- Store at 5-35°C, avoid freezing and high temperatures
- The specific dosage should be adjusted according to formula requirements, cleaning objects, and local regulations.
- It is recommended to conduct a small-scale test before large-scale use
- If mixing with other chemicals, perform a compatibility test first
Application Areas
Industrial Cleaning
Used for industrial equipment cleaning and metal surface treatment, effectively removing metal ion contamination.
- Cleaning Agent Formula
- Metal Surface Treatment
- Equipment maintenance cleaning
Water treatment
Used for hard water softening to prevent scale formation.
- Industrial Water Treatment
- Circulating Water System
- Boiler Water Treatment
Chemical Industry
Used as a metal ion chelating agent in various chemical reactions.
- Catalyst Stability
- Reaction Condition Control
- Product Purification
Textile Dyeing & Printing
Used for metal ion control in textile dyeing and printing.
- Dyeing & Finishing
- Fabric Treatment
- Water Softening
FAQ
Key Differences:
- Chemical FormEDTA-4NH₄ is a tetraammonium salt, EDTA-4Na is a tetrasodium salt
- pH ValueEDTA-4NH₄ is weakly alkaline (pH 8.5-9.5), EDTA-4Na is strongly alkaline (pH 11.0-12.0)
- ContentEDTA-4NH₄ content ≥ 50%, EDTA-4Na content ≥ 39%
- ApplicationEDTA-4NH₄ is more suitable for applications requiring a mild alkaline environment
EDTA-4NH₄ solution offers the following advantages:
- Ready-to-UseNo dissolving needed, use directly to save time and equipment
- Good CompatibilityLiquid form facilitates easy mixing with other liquid products
- Precise MeasurementEasy to accurately measure and control dosage
- Dust ReductionAvoids dust issues in solid powder operations
When stored in original sealed packaging under cool, dry, and well-ventilated conditions, the shelf life of this product is12 MonthsStore away from direct sunlight and prevent freezing in winter
Yes, we offer free samples for customer testing. Please contact our sales team for sample quantity and shipping details.
Standard minimum order quantity is one pallet (approximately 1 ton or more). For special specifications or customized packaging requirements, please contact our sales team for confirmation.
This product has been exported to Southeast Asia, the Middle East, Europe, and other regions. Available export documents include:
- Commercial Invoice
- Packing List
- Certificate of Origin (CO)
- SDS/MSDS (multilingual version)
- Certificate of Analysis (COA)
- Sea/Air Transport Assessment Report
- Other required certification documents
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