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High-Quality Antioxidant SP (Styrenated Phenol) for Rubber & Plastic Industry - CAS 61788-44-1

Name: High-Quality Antioxidant SP (Styrenated Phenol) for Rubber & Plastic Industry - CAS 61788-44-1
Brand: Jienuo
Rating: 5.0 (46 reviews)

Antioxidant SP, also known as Styrenated Phenol (CAS No.: 61788-44-1, Molecular Formula: C30H30O, Molecular Weight: 406.56), is an aromatic compound. It appears as a pale yellow viscous paste, with a refractive index of 1.5985~1.6020 (25°C), weight loss rate ≤5%, and qualified alcohol solubility.
It dissolves in ethanol, acetone, benzene and hydrocarbons. As a non-staining antioxidant/stabilizer, it works in natural/synthetic rubbers (e.g., SBR, EPDM) to resist thermal-oxidative and flex cracking aging, and in polyolefins/polyoxymethylene against oxidation. It also serves as a chemical synthesis intermediate. Packed in 50kg plastic drums, it has a 2-year shelf life when stored in dry, ventilated areas.

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Model:
Antioxidant SP
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Jienuo

Product Description

Product Brief of Antioxidant SP

Antioxidant SP, also known as Styrenated Phenol (CAS No.: 61788-44-1, Molecular Formula: C30H30O, Molecular Weight: 406.56), is an aromatic compound. It appears as a pale yellow viscous paste, with a refractive index of 1.5985~1.6020 (25°C), weight loss rate ≤5%, and qualified alcohol solubility.

It dissolves in ethanol, acetone, benzene and hydrocarbons. As a non-staining antioxidant/stabilizer, it works in natural/synthetic rubbers (e.g., SBR, EPDM) to resist thermal-oxidative and flex cracking aging, and in polyolefins/polyoxymethylene against oxidation. It also serves as a chemical synthesis intermediate. Packed in 50kg plastic drums, it has a 2-year shelf life when stored in dry, ventilated areas.

Product Advantage

Excellent Anti-Aging Performance with Strong Radical Scavenging Ability
It effectively captures free radicals to inhibit oxidation reactions, providing reliable protection against thermal-oxidative aging and flex cracking. Test data shows it can extend the service life of rubber products by over 30% and maintain the mechanical properties of plastics (e.g., tensile strength, impact resistance) by more than 25% under long-term use, ensuring materials retain performance stability.
Superior Thermal Stability for High-Temperature Scenarios
With outstanding thermal stability, it remains non-decomposable and non-volatile even in high-temperature processing (up to 200°C for short periods) of rubber and plastics. This allows it to continuously exert anti-aging effects during material processing and subsequent use, avoiding performance failure caused by additive loss at high temperatures.
Non-Staining & Good Dispersibility for Light-Colored Products
As a non-staining anti-aging agent, it does not cause discoloration or pollution to materials, making it perfectly suitable for white, light-colored, and bright-colored rubber/plastic products. Meanwhile, its fine dispersion in matrices ensures uniform distribution—no agglomeration occurs even at the recommended dosage range, maximizing anti-aging efficiency.
Broad Compatibility with Multiple Material Systems
It exhibits excellent compatibility with natural rubber, synthetic rubbers (SBR, EPDM, IR), polyolefins (PP, PE), and polyoxymethylene. No adverse reactions (e.g., reduced material toughness, poor processing fluidity) occur when mixed with these materials, reducing the risk of formula adjustment and lowering application costs for enterprises.
Reliable Quality with Standardized Technical Indicators
It meets strict technical standards: appearance (pale yellow viscous paste), refractive index (1.5985~1.6020 at 25°C), weight loss rate (≤5%), and qualified alcohol solubility. Each batch undergoes 100% quality inspection, ensuring consistent performance. With a 2-year shelf life under proper storage, it guarantees long-term usability for inventory management.

Technical Specifications

Specification Item	Technical Parameter
Chemical Name	Styrenated Phenol
CAS Number	61788-44-1
EINECS Number	262-975-0
Molecular Formula	C₃₀H₃₀O
Molecular Weight	406.56 g/mol
Chemical Type	Aromatic Compound
Appearance	Pale Yellow Viscous Paste
Refractive Index (n)	1.5985 ~ 1.6020
Weight Loss Rate	≤ 5%
Alcohol Solubility	Qualified
Solubility in Solvents	Soluble in ethanol, acetone, benzene and hydrocarbon solvents
Shelf Life	2 Years
Packaging Specification	50kg Plastic Drum

Product Uses

Rubber Industry: Thermal-Oxidative Stabilizer for Various Rubbers
It is widely used as a stabilizer in natural rubber, SBR, EPDM, butyl rubber, and SBS adhesives. It prevents aging caused by heat, oxygen, flexing, and weather during rubber processing, storage, and use—ideal for light-colored/colored products like rubber soles and seals. The recommended dosage is 0.5~3.0 parts.
Plastic Industry: Anti-Oxidant for Polyolefins & Polyoxymethylene
Added to polyolefins (PP, PE) and polyoxymethylene, it inhibits oxidation during processing and use. It avoids plastic yellowing, brittleness, and mechanical property degradation, enhancing plastic stability and durability. The typical addition amount ranges from 0.01% to 0.5%.
Chemical Industry: Intermediate for Chemical Synthesis
It serves as a key intermediate in chemical synthesis, providing a stable molecular structure foundation for producing other fine chemicals. Its high purity (consistent with technical indicators) ensures the quality of downstream synthetic products, reducing impurities in the synthesis process.
Coating Industry: Anti-Aging Additive for Coatings
Incorporated into coatings, it improves the coatings' resistance to light and thermal aging. It prevents coating fading, chalking, and peeling when used outdoors, extending the service life of coated surfaces (e.g., building exteriors, industrial equipment) while maintaining coating aesthetics.

Product Operate Guide

For rubber products, add 0.5~3.0 parts of Antioxidant SP during rubber mixing. For polyolefins, add 0.01~0.5% during plastic processing. Adjust dosage based on material systems, usage environments and performance needs. Store in a dry, ventilated place and use within the 2-year shelf life for optimal results.

FAQ

Q: How should I store Antioxidant SP to ensure its effectiveness?
A: Store it in a dry and well-ventilated area, following general chemical storage rules. Avoid damp or extreme temperature environments. Used within the 2-year shelf life, it maintains optimal performance.
Q: Can I adjust the dosage of Antioxidant SP based on my specific needs?
A: Yes. The recommended dosage is 0.5~3.0 parts for rubber and 0.01~0.5% for polyolefins. You can adjust it according to your material system, usage environment and required performance.
Q: Is Antioxidant SP suitable for white or light-colored rubber/plastic products?
A: Absolutely. It is a non-staining antioxidant that won't cause discoloration or pollution. It's especially ideal for white, light-colored and bright-colored products to keep their appearance and performance.
Q: Which solvents can dissolve Antioxidant SP? Is it hard to dissolve?
A: It dissolves easily in ethanol, acetone, benzene and hydrocarbon solvents at room temperature. No complex operations are needed, making it convenient to mix with different materials.
Q: What if Antioxidant SP exceeds its 2-year shelf life? Can it still be used?
A: It's not recommended. Exceeding the shelf life may reduce its anti-aging effect, affecting the stability and service life of your rubber or plastic products. Use it within the validity period.