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pangunang paragrapo:
In industrial chemistry, few compounds are as multifunctional and dependable as phosphate esters — the quiet workhorses behind efficient metal extraction and durable coatings.

snippet nga paragrapo:
Ang top six high-performance phosphate esters used in extraction and coatings are P204, TBP, TOP, TEP, NP-10, and AEO-3, each engineered for a specific balance of solubility, stability, and surface activity to enhance process efficiency and product performance.

Transition nga paragrapo:
From hydrometallurgy to waterborne paints, phosphate esters deliver crucial functions — acting as extractants, wetting agents, dispersants, and corrosion inhibitors. This article explains how each of these six esters works, why they are vital to extraction and coating systems, and how Donghong Chemical leads their production.

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1. 2-Ethylhexyl Phosphate (P204)

pangunang paragrapo:
When it comes to metal extraction, P204 is the industry’s gold standard.

snippet nga paragrapo:
Known chemically as bis(2-ethylhexyl) phosphate, P204 is a strong acidic phosphate ester widely used in rare earth, nickel, copper, and cobalt extraction processes.

Key Specifications:

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• Acid Value: 140–150 mgKOH/g
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• Kolor: ≤40 APHA
• Solubility: Miscible with organic solvents, insoluble in water

Mga Aplikasyon:

• Hydrometallurgy: Extracts and separates rare and non-ferrous metals.
• Coatings: Pagpaayo sa pagdikit ug resistensya sa corrosion sa mga metal nga substrate.
• Lubricants: Acts as an anti-wear and antioxidant additive.

Why It’s High-Performance:
P204 offers exceptional selectivity for metal ions while forming stable phosphate–metal complexes. In coatings, it enhances bonding between organic resins and metal surfaces.

cURL Too many subrequests. is produced under controlled esterification, ensuring low impurities and consistent acidity for efficient extraction and coating applications.

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2. Tributyl Phosphate (TBP)

pangunang paragrapo:
For over half a century, Tributyl Phosphate (TBP) has been the workhorse extractant in the chemical and nuclear industries.

snippet nga paragrapo:
TBP is a neutral triester that acts as both a solvent and complexing agent, valued for its thermal stability and low volatility.

Key Specifications:

• Purity: ≥99%
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• Acid Value: ≤0.1 mgKOH/g
• Kolor: ≤30 APHA

Mga Aplikasyon:

• Pagkuha: Solvent for uranium, thorium, and rare earths.
• Coatings: cURL Too many subrequests.
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Why It’s High-Performance:
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pangunang paragrapo:
cURL Too many subrequests., Trioctyl Phosphate (TOP) cURL Too many subrequests.

snippet nga paragrapo:
TOP is a cURL Too many subrequests. cURL Too many subrequests. cURL Too many subrequests..

Key Specifications:

• Purity: ≥99%
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• Kolor: ≤30 APHA

Mga Aplikasyon:

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• Pagkuha: Used for heavy metal separation in acidic conditions.
• Plastics: Enhances mechanical strength and flame retardancy.

Why It’s High-Performance:
TOP maintains structural stability even under strong acidic and thermal conditions, making it suitable for long-cycle extraction systems and heat-resistant coatings.

Donghong Chemical’s TOP is manufactured with a closed-loop esterification system, ensuring low VOC emissions and consistent film-forming performance in coatings.

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4. Triethyl Phosphate (TEP)

pangunang paragrapo:
As industries move toward safer, halogen-free additives, Triethyl Phosphate (TEP) has become the go-to eco-friendly choice.

snippet nga paragrapo:
TEP is a low-viscosity, colorless, non-halogenated phosphate ester used in flame retardant, catalytic, and coating applications.

Key Specifications:

• Purity: ≥99%
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• Acid Value: ≤0.3 mgKOH/g
• Kolor: ≤20 APHA

Mga Aplikasyon:

• Pagkuha: Solvent and carrier for metal ion separation.
• Coatings: Flame retardant and plasticizer for PU, acrylic, and epoxy systems.
• Catalyst: Used in polymer synthesis and curing reactions.

Why It’s High-Performance:
TEP’s low toxicity, non-corrosive nature, ug excellent flame-retardant properties make it ideal for both coating systems and environmentally responsible extraction operations.

Donghong Chemical’s TEP meets REACH and RoHS standards, ensuring full compliance for global markets.

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5. Nonylphenol Polyoxyethylene Ether Phosphate (NP-10)

pangunang paragrapo:
For coating manufacturers looking for high-efficiency dispersion and wetting, NP-10 Phosphate Ester is a must-have additive.

snippet nga paragrapo:
NP-10 is an amphiphilic phosphate ester surfactant, combining strong wetting and dispersing abilities with low foaming and excellent compatibility in coating systems.

Key Specifications:

• Purity: ≥99%
• Acid Value: 80–120 mgKOH/g
• pH (5% sol.): 1–2
• Solubility: Water-soluble

Mga Aplikasyon:

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Why It’s High-Performance:
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pangunang paragrapo:
cURL Too many subrequests., AEO-3 Phosphate Ester cURL Too many subrequests.

snippet nga paragrapo:
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Key Specifications:

• Purity: ≥99%
• Acid Value: 80–120 mgKOH/g
• pH (5% sol.): 1–2
• Biodegradability: ≥90%

Mga Aplikasyon:

• Coatings: Wetting, dispersing, and anti-foaming additive.
• Pagkuha sa Metal: Emulsion stabilizer in aqueous-organic extraction systems.
• Textiles: Penetrant and leveling agent for dyeing.

Why It’s High-Performance:
AEO-3 combines fast wetting, low foaming, and chemical stability, making it perfect for waterborne coatings ug eco-friendly formulations. Its biodegradability ensures minimal environmental impact.

Donghong Chemical’s AEO-3 is globally recognized for consistent purity, low odor, and stable viscosity, suitable for green industrial applications.

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Dive Deeper: Comparative Overview of the Six Phosphate Esters

Produkto	Tipo	Kalimpyo (%)	Primary Function	Application Focus
P204	Acidic Monoester	≥98	Metal extractant, adhesion promoter	Hydrometallurgy, coatings
TBP	Neutral Triester	≥99	Solvent, coalescent	Extraction, resin blending
TOP	Neutral Triester	≥99	Flame retardant, stabilizer	Heat-resistant coatings
TEP	Neutral Triester	≥99	Flame retardant, catalyst	PU, acrylic coatings
NP-10	Amphiphilic Diester	≥99	Dispersant, wetting agent	Pigment dispersion, emulsions
AEO-3	Anionic Diester	≥99	cURL Too many subrequests.	Waterborne coatings, cleaning

Key Takeaway:
The right phosphate ester depends on your end use — acidic esters (P204) excel in extraction, while neutral and amphiphilic esters (NP-10, AEO-3) deliver superior coating performance.

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Why Choose Donghong Chemical for High-Performance Phosphate Esters

Donghong Chemical (Guangdong, China) is a specialized manufacturer of phosphate esters, surfactants, and coating additives, serving global markets across metallurgy, coatings, and textiles.

Core Advantages:

• 20,000-ton annual capacity with advanced esterification systems.
• High-purity (≥99%) production and low acid residue.
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cURL Too many subrequests., Donghong Chemical cURL Too many subrequests. phosphate esters tailored to advanced extraction and coating systems.

For technical data or bulk order inquiries:

📧 Email: dohollchemical@gmail.com
📱 WhatsApp: +86 139 0301 4781

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Donghong Chemical — Professional supplier of high-performance phosphate esters for coatings, extraction, and industrial applications worldwide.