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Mar 16, 2018

Product Name: Tetrahydrofuran

CAS#: 109-99-9

Fire and Explosion Data:

Flammability of the Product: Flammable.
Auto-Ignition Temperature: 321°C (609.8°F)
Flash Points: CLOSED CUP: -14.5°C (5.9°F). OPEN CUP: -20°C (-4°F).
Flammable Limits: LOWER: 2% UPPER: 11.8%
Products of Combustion: These products are carbon oxides (CO, CO2).

Physical and Chemical Properties:

Physical state and appearance: Liquid.
Odor: Ethereal. Fruity.
Taste: Pungent.
Molecular Weight: 72.11 g/mole
Color: Colorless.
pH (1% soln/water): Not available.
Boiling Point: 65°C (149°F) @ 760 mm Hg

Melting Point: -108.3°C (-162.9°F)
Critical Temperature: 267°C (512.6°F)
Specific Gravity: 0.8892 (Water = 1)
Vapor Pressure: 19.3 kPa (@ 20°C)
Vapor Density: 2.5 (Air = 1)
Volatility: 100% (v/v).
Odor Threshold: 20 ppm - 50 ppm
Water/Oil Dist. Coeff.: The product is more soluble in oil; log(oil/water) = 0.5
Ionicity (in Water): Not available.
Dispersion Properties: See solubility in water, diethyl ether, acetone.
Easily soluble in diethyl ether, acetone. Partially soluble in cold water. Solubility in water is 30%. Miscible with alcohols,
ketones, esters, hydrocarbons, and ethers. Very soluble in benzene, ethanol, and chloroform.

Transport Information:

DOT Classification: CLASS 3: Flammable liquid.
Identification: : Tetrahydrofuran UN: 2056 PG: II

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