
Trisodium nitrilotriacetate NEW
Price | Get Latest Price | ||
Package | 1kg | 25kg | 50kg |
Min. Order: | 1kg |
Supply Ability: | 1000kg |
Update Time: | 2025-05-27 |
Product Details
Product Name: Trisodium nitrilotriacetate | CAS No.: 5064-31-3 |
EC-No.: 225-768-6 | Min. Order: 1kg |
Purity: 99.1% | Supply Ability: 1000kg |
Release date: 2025/05/27 |
Trisodium nitrilotriacetate (NTA) is the sodium salt of nitrilotriacetic acid (NTA), a synthetic chelating agent used to bind and stabilize metal ions in various industrial, commercial, and laboratory applications. Below is a detailed breakdown of its properties, uses, and considerations:
1. Chemical Structure & Properties
Formula: C?H?NNa?O? (sodium salt of NTA).
Structure: Contains three carboxylate groups attached to a central nitrogen atom, enabling strong metal ion binding.
Solubility: Highly water-soluble, making it effective in aqueous solutions.
Chelation Strength: Binds to divalent and trivalent metal ions (e.g., Ca2?, Mg2?, Fe3?), though weaker than EDTA (a common alternative).
2. Primary Applications
Industrial & Household Uses
Detergents & Cleaners:
Replaces phosphates in water-softening formulations (e.g., laundry detergents) to prevent metal ions (Ca2?, Mg2?) from interfering with cleaning.
More biodegradable than phosphates but less effective than EDTA.
Water Treatment:
Prevents scaling in boilers and pipelines by sequestering metal ions.
Used in cooling systems and industrial wastewater treatment.
Textile & Paper Industries:
Controls metal ions in dyeing processes to improve color fastness.
Stabilizes bleaching agents in pulp/paper production.
Laboratory & Technical Uses
Analytical Chemistry:
Chelates interfering metal ions in titrations or spectroscopic analyses.
Photography:
Used in developing solutions to stabilize chemicals.
Niche Applications
Agriculture:
Micronutrient delivery in fertilizers (binds and releases metals like Fe3? or Zn2?).
Nuclear Industry:
Decontamination agent for radioactive metal ions.
3. Safety & Environmental Concerns
Toxicity:
Low acute toxicity but linked to kidney damage and carcinogenicity in animal studies (high doses or prolonged exposure).
Classified as a Group 2B carcinogen (possibly carcinogenic to humans) by IARC.
Environmental Impact:
Biodegradable but may mobilize toxic heavy metals (e.g., Cd, Pb) in soil/water.
Banned or restricted in household products in some regions (e.g., EU limits in detergents).
4. Regulatory Status
EU: Restricted in consumer products (e.g., detergents) under REACH regulations.
US: Regulated by EPA; allowed in industrial applications with controlled disposal.
Alternatives: EDTA and citric acid are often preferred due to safety concerns.
5. Key Advantages & Limitations
Pros:
Effective metal chelator with higher biodegradability than EDTA.
Cost-effective for industrial scaling.
Cons:
Potential health/environmental risks limit its use in consumer goods.
Weaker chelation compared to EDTA or DTPA.
Summary
Trisodium nitrilotriacetate is a versatile chelator primarily used in industrial cleaning, water treatment, and niche technical applications. While valued for its biodegradability and cost efficiency, its use is constrained by toxicity concerns and regulatory restrictions, favoring safer alternatives in consumer-facing products.
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