Propylene Glycol n-Butyl Ether (PnB), identified by CAS number 5131-66-8, is a versatile, high-performance solvent belonging to the P-series glycol ether family. Chemically known as 1-butoxy-2-prop…
Superior Solvency: Demonstrates high solvency power for greases, oils, and numerous resin types, ensuring high-efficiency cleaning and uniform film formation.
Effective Coupling: Acts as a robust coupling agent, stabilizing mixtures of water and organic solvents that would otherwise remain immiscible.
Enhanced Wetting: Significantly reduces the surface tension of water-based formulations, improving the wetting and leveling capabilities on various substrates.
Low Toxicity: Provides a safer alternative to ethylene glycol ethers, featuring lower volatile organic compound (VOC) concerns and reduced health risks.
Evaporation Control: Offers a medium evaporation rate that optimizes the “open time” in coatings while ensuring timely drying.
Biodegradability: Readily biodegradable, supporting environmentally responsible and “green” formulation goals.
规格
技术亮点
Molecular Weight: 132.20 g/mol.
Boiling Point: 171°C (340°F) at 760 mmHg, providing stability under moderate thermal processing.
Flash Point: 63°C (145°F) (Pensky-Martens Closed Cup), categorizing it as a combustible liquid rather than highly flammable.
Vapor Pressure: Approximately 0.8 mmHg at 20°C, indicating low volatility and reduced inhalation exposure risk at ambient temperatures.
Solubility: Partially soluble in water (approx. 6.4% by weight at 20°C); completely miscible with a wide range of organic solvents including alcohols, ketones, and esters.
Specific Gravity: 0.880 at 20/20°C.
Viscosity: 3.1 cP at 25°C, contributing to low formulation viscosity.
