4-Hydroxy TEMPO (CAS 2226-96-2) – High-Efficiency Polymerization Inhibitor for Acrylics & Styrenics
Introduction
In the production, storage, and transportation of reactive monomers, uncontrolled polymerization is one of the most critical challenges faced by manufacturers. This is especially true for highly reactive systems such as acrylics, methacrylates, and styrenic monomers.
4-Hydroxy TEMPO (CAS No. 2226-96-2) is a highly efficient and widely used polymerization inhibitor, designed to prevent unwanted reactions and ensure product stability throughout the supply chain.
At EcoChem China, we supply high-purity 4-Hydroxy TEMPO to support safe and stable industrial operations worldwide.
What is 4-Hydroxy TEMPO?
4-Hydroxy TEMPO is a stable nitroxide radical compound known for its exceptional ability to trap free radicals, making it highly effective in inhibiting premature polymerization.
It is particularly suitable for systems where thermal or spontaneous polymerization may occur during:
- Production processes
- Storage and handling
- Transportation of monomers
Key Benefits of 4-Hydroxy TEMPO
1. Excellent Polymerization Inhibition Performance
4-Hydroxy TEMPO demonstrates outstanding inhibition effects in a wide range of vinyl monomers, including:
- Acrylates
- Methacrylates
- Acrylic acid
- Acrylonitrile
- Styrene
- Butadiene
It effectively prevents runaway reactions and ensures process safety.
2. High Efficiency at Low Dosage
Compared with traditional inhibitors, 4-Hydroxy TEMPO:
- Works efficiently at low concentration levels
- Reduces overall additive cost
- Minimizes impact on downstream processing
3. Strong Thermal Stability
This product maintains its inhibitory performance even under elevated temperatures, making it suitable for:
- High-temperature storage conditions
- Long-distance transportation
- Industrial-scale production
4. Reliable Storage Protection
It helps extend the shelf life of reactive monomers by:
- Preventing viscosity increase
- Avoiding gel formation
- Maintaining product quality consistency
Applications
1. Acrylic & Methacrylate Monomers
Widely used in:
- Methyl methacrylate (MMA)
- Butyl acrylate (BA)
- Ethyl acrylate (EA)
Prevents unwanted polymer formation during storage and shipping.
2. Acrylic Acid & Acrylonitrile
In highly reactive monomers like acrylic acid and acrylonitrile, 4-Hydroxy TEMPO:
- Stabilizes the system
- Improves safety during handling
3. Styrene & Butadiene Systems
In styrenic and diene systems, it:
- Inhibits thermal polymerization
- Ensures safe bulk storage and transport
4. Petrochemical & Polymer Industry
Ideal for:
- Monomer manufacturers
- Chemical distributors
- Polymer producers
Technical Information
- Product Name: 4-Hydroxy TEMPO
- CAS No.: 2226-96-2
- Appearance: Orange to red crystalline solid
- Function: Polymerization inhibitor / free radical scavenger
Why Choose EcoChem China?
Stable Supply & Consistent Quality
At EcoChem China, we ensure:
- Strict quality control
- Reliable batch consistency
- High-purity products
Professional Export Experience
We support global customers with:
- Fast delivery
- Complete documentation (COA, MSDS, TDS)
- Flexible packaging solutions
Technical Support
Our team provides:
- Application guidance
- Dosage recommendations
- Customized solutions based on your process
Packaging & Storage
- Packaging: 25kg fiber drum / customized
- Storage Conditions:
- Keep in a cool, dry place
- Avoid exposure to sunlight
- Seal tightly after use
Conclusion
4-Hydroxy TEMPO (CAS 2226-96-2) is an essential solution for controlling polymerization in reactive monomer systems. With its high efficiency, low dosage, and excellent stability, it plays a vital role in ensuring safety, quality, and operational efficiency.
For industries dealing with acrylics, methacrylates, styrene, and related monomers, choosing the right inhibitor is critical — and 4-Hydroxy TEMPO is a proven and reliable choice.
Contact Us
Looking for a reliable supplier of 4-Hydroxy TEMPO?
EcoChem China is ready to support your business:
🌐 Website: www.ecochemchina.com
📧 Email: qin@ecochemchina.com
📦 Custom packaging & global shipping available
