生物基/绿色溶剂, 高纯溶剂

Sebacic Acid

Name: Sebacic Acid - Ruifen Chemicals
SKU: 9c63f9cd435c

Sebacic acid, chemically identified as decanedioic acid (CAS: 111-20-6), is a naturally occurring, straight-chain saturated dicarboxylic acid with the molecular formula C₁₀H₁₈…

属性

主要特点与优势

Renewable Feedstock: Produced from castor oil, offering a reduced carbon footprint compared to petroleum-derived alternatives.
Superior Flexibility: The long C₁₀ carbon chain provides exceptional impact resistance and low-temperature flexibility in finished polymers.
Thermal and Oxidative Stability: Demonstrates high resistance to degradation at elevated temperatures, extending the lifespan of industrial products.
Hydrophobic Nature: Its aliphatic structure provides better water resistance than shorter-chain dicarboxylic acids like adipic acid.
Non-Toxic Profile: Generally regarded as safe (GRAS) for specific applications, facilitating its use in cosmetics and sensitive consumer goods.
Bifunctional Reactivity: Dual carboxylic groups allow for the synthesis of complex esters and linear long-chain polyamides.

规格

技术亮点

Molecular Weight: 202.25 g/mol.
Melting Point: Typically ranges from 131°C to 134.5°C, ensuring stability during high-heat processing.
Acidity (pKa): Bifunctional acid with pKa₁ ≈ 4.59 and pKa₂ ≈ 5.59 at 25°C.
High Purity: Available in commercial grades exceeding 99.5% purity, critical for polymerization to achieve high molecular weights.
Solubility: Low solubility in water (1.0 g/L at 20°C); highly soluble in ethanol, ether, and organic solvents.
Flash Point: Approximately 220°C (open cup), providing a high safety margin in industrial manufacturing environments.
Vapor Pressure: Extremely low (1.58 × 10^-6 mmHg at 25°C), minimizing volatile emissions.