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Product Information Page 1 of 2 *Trademark of The Dow Chemical Company '2:$12/�3Q% Propylene Glycol n-Butyl Ether C4H9OCH2CH(CH3)OH (Major isomer) A fast-evaporating, hydrophobic glycol ether with high solvency and excellent coupling abilities ,QWURGXFWLRQ DOWANOL* PnB glycol ether is extensively used in heavy-duty cleaning formulations. It does an excellent job of solvating and coupling hydrophobic greases and oils in household as well as industrial formulations. It is partly water soluble and miscible with most organic solvents. DOWANOL PnB glycol ether also provides excellent surface-tension lowering ability. In coatings DOWANOL PnB offers good coalescing ability in systems requiring fast evaporation. 3K\VLFDO�SURSHUWLHV† Molecular weight (g/mol) 132.2 Boiling point @ 760 mmHg, 1.01 bar 340°F 171°C Flash point (Setaflash Closed Cup) 145°F 63°C Freezing point <-112°F <-80°C Vapor pressure@ 20°C — extrapolated 0.85 mmHg 1.1 mbar Specific gravity (25/25°C) 0.878 Density @ 20°C @ 25°C 7.34 lb/gal 7.30 lb/gal 0.879 g/cm³ 0.875 g/cm³ Viscosity (cP or mPa•s @ 25°C) 3.1 Surface tension (dynes/cm or mN/m @ 25°C) 27.5 Specific heat (J/g/°C @ 25°C) 1.98 Heat of vaporization (J/g) at normal boiling point 320 Net heat of combustion (kJ/g) — predicted @ 25°C 31.4 Autoignition temperature 500°F 260°C Evaporation rate (n-butyl acetate = 1.0) (diethyl ether = 1.0) 0.093 131 Solubility, g/100 g @ 25°C Solvent in water Water in solvent 5.5 (5.5 wt%) 18.5 (15.5 wt%) Hansen solubility parameters (J/cm³)1/2 _d (Dispersion) _p (Polar) _h (Hydrogen bonding) 14.9 4.9 10.7 Flammable limits (vol.% in air) Lower (measured @ 25°C) Upper (measured @145°C) 1.10 8.40 †The physical property data listed here are considered to be typical properties, not specifications. Page 2 of 2 *Trademark of The Dow Chemical Company Form No. 110-00616-0304 &ODVVLILFDWLRQ�5HJLVWU\�1XPEHUV†† CAS Number 5131-66-8 AICS (Australia) 5131-66-8 DSL (Canada) 5131-66-8 ECL (Korea) 2-521 EINECS (EU) 225-878-4 MITI (Japan) 2-2424 TSCA (U.S.) 5131-66-8 †† NOTE: Classifications apply only to this glycol ether product. It is the responsibility of the formulator to ensure that the final finished product complies with the regulations of a given country prior to its sale or distribution in that country. 6XJJHVWHG $SSOLFDWLRQV • Coupling agent and solvent in household and industrial cleaners, grease and paint removers, metal cleaners, and hard surface cleaners. • Effective coupling agent and efficient solvent for water-reducible coatings. • Effective coalescent for lowering minimum film formation temperature (MFFT) in water-borne latex coatings. • Active solvent for solvent-based coatings. • Chemical intermediate for the production of epoxides, acid ester derivatives, solvents, and plasticizers. • Effective coupling agent in waterbased agricultural formulations. )HDWXUHV • Excellent solvency • Good oil solubility • Effective surfactant properties • Excellent coupling ability • Good evaporation rate control • Greater formulating flexibility • Low viscosity • Wide range of applications • Low toxicity • Practical alternative to Butyl CELLOSOLVETM glycol ether (formerly known as DOWANOL EB ethylene glycol butyl ether) • High dilution ratio • Colorless NOTE: Consult the appropriate Material Safety Data Sheet for safety and handling guidelines for this product. *The Dow Chemical Company Midland, Michigan 48674 U.S.A. In The United States And Canada: 1-800-447-4369 Fax: 1-989-832-1465 In Europe: +800 3 694 6367 Toll Phone: +32 3 450 2240 Toll Fax: +32 3 450 2815 In The Pacific: +800 7776 7776 Fax: +800 7779 7779 In Other Global Areas: 1-989-832-1556 Fax: 1-989-832-1465 Notice: No freedom from any patent owned by Seller or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for determining whether products and the information in this document are appropriate for Customer’s use and for ensuring that Customer’s workplace and disposal practices are in compliance with applicable laws and other governmental enactments. Seller assumes no obligation or liability for the information in this document. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED. Published March 2004