Triethylene Glycol Monobutyl Ether
Overview
Triethylene Glycol Monobutyl Ether (TGBE) is a glycol ether solvent widely used in industrial applications due to its dual solubility characteristics. It acts as a bridging agent between water-soluble and oil-soluble components, making it indispensable in formulations requiring balanced performance. As a derivative of ethylene oxide and butanol, it is manufactured under stringent conditions to ensure consistency in commercial grades. TGBE is favored for its low toxicity compared to other glycol ethers, aligning with modern regulatory standards. Its production in China has grown significantly, with domestic manufacturers offering competitive pricing while meeting international quality benchmarks like REACH and ISO certifications.
Physical and Chemical Properties
TGBE exhibits a high boiling point (271–273°C) and moderate viscosity, which contribute to its effectiveness as a slow-evaporating solvent. Its density of 0.98–1.00 g/cm³ ensures easy handling in liquid formulations. The compound’s miscibility with both polar and non-polar solvents, including water, alcohols, and hydrocarbons, enhances its versatility. Chemically, TGBE is stable under normal conditions but may decompose at high temperatures, releasing carbon oxides. Its flash point (approximately 138°C) classifies it as combustible, requiring precautions during storage and transport. The molecular structure, featuring both ether and hydroxyl groups, enables hydrogen bonding and solvation of diverse resins.
Main Applications
In the coatings industry, TGBE serves as a coalescing agent for water-based paints, improving film formation and gloss. Its slow evaporation rate minimizes surface defects like blistering. For printing inks, it adjusts viscosity and enhances pigment dispersion, ensuring print uniformity. The chemical is also integral to industrial cleaners, where it solubilizes oils and greases without corroding metals. Niche uses include dye carriers in textiles and additive formulations for hydraulic fluids. Emerging applications in electronics cleaning and agrochemical adjuvants are expanding its market reach.
Safety and Storage
TGBE requires careful handling to mitigate risks. Prolonged skin contact may cause mild irritation, necessitating gloves and protective clothing. Adequate ventilation is essential to prevent vapor accumulation, as inhalation can lead to respiratory discomfort. Storage recommendations include using grounded containers in cool, dry areas away from oxidizers. Bulk storage tanks should feature nitrogen blanketing to minimize oxidation. Spills should be contained with inert absorbents and disposed of per local regulations. Safety Data Sheets (SDS) must be reviewed prior to use.
B2B Procurement Guide
When sourcing TGBE, prioritize suppliers with ISO 9001 certification and batch-specific analysis reports. Key parameters to verify include purity (≥99%), water content (<0.1%), and acidity levels. Packaging options range from 25kg cans to 1000kg IBCs, with bulk shipments requiring lined tankers. Pricing is volume-dependent, with discounts for contracts exceeding 10 metric tons. Sample testing is advised to confirm compatibility with end-use formulations. Due to fluctuating raw material (ethylene oxide/butanol) costs, flexible procurement agreements are recommended.
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