COMMERCIALLY AVAILABLE PHYSICAL
PROPERTIES
Appearance . . . . Colorless, mobile liquid Odor Ether-tike Molecular Weight . . . 72.10 Boiling Range @ 7 6 0 mm. . 05-67°C. Specific Gravity, 20/4 . . . . 0.887 Index of Refraction, N20/D . . . . 1.407 Flash Point -17°C Vapor Pressure @ 25°C 176 mm. 45°C 3 8 5 mm. 65°C 7 6 0 mm. Solubility Miscible with water and most common organic solvents
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t h e practical solvent for many difficultly solH uble organic materials and resins. With y ou c a n get solutions of comparatively high
a 10 percent solution of polyvinyl chloride in TETRA-
ERE'S
TETRAHY-
HYDRO FURAN is an effective adhesive for polyvinyl
chloride sheets.
DROFUEAN,
solids content a t practical working viscosities. This property, together witb the lack of color and low boiling point of TETRAHYDROFURAN, make it a most useful solvent for many resins and for production of clear, light-colored lacquers, adhesives and printing ink compositions.
TETRAHYDROFURAN WATER—MIXTURES
have unusual solvent power. The mixture is a better solvent than TETRAHYDROFURAN alone for materials such as cellulose acetate. Mixtures of TETRAHYDROFURAN with water are more effective solvents for alkaloids such as caffeine than either TETRAHYDROFURAN or water alone.
SOLVENT POWER
of less active solvents can be improved by additions of For example, clear films can b e cast from 10 t o 15 percent solutions of high molecular weight polyvinyl chloride i n a 65/35 mixture of T E T R A HYDROFURAN with methyl ethyl ketone, TETRAJIYDROFURÀSÎ.
EFFECTIVE ADHESIVE C O M P O S I T I O N S
for plastics and films can be formulated with T E T R A HYDROFURAN- Typical compositions include a 10 percent solution of poly vinylidene chloride inTETRAHYDROFUR AN t o seal polyvinylidene chloride sheets and bags- Also,
FOR CHEMICAL REACTIONS
is an excellent solvent medium in which t o carry out Grignard, lithium aluniinurn hydride and sodium acetylide reactions. I t s ether structure and the wide range of organic materials which it dissolves suggest its use as a medium for other chemical reactions.
TETRAHYDROFURAN
AS A CHEMICAL INTERMEDIATE
reacts by substitution and fissure of the ring. Among these reactions are dehydration, oxidation, chlorination, and acylation.
TETRAHYDROFURAN
A REQUEST
ran υιΐΝτ VOLUME
2 8,
NO. 4 6 - NOVEMBER
on your company letterfiead will bring technical bulletins, price information, and samples if desired. Just write to E. I. du Pont de Nemours & Co., Electrochemicals Department, Field Research Section, Wilmington 98, Delaware.
13, 1 9 5 0
4019
