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Polytetrahydrofuran

Polytetrahydrofuran can be viewed as a polymer of tetrahydrofuran, or as the polyether derived from 1,4-butanediol. The main use of polytetrahydrofuran is to make elastic fibers such as spandex for stretchable fabrics and for polyurethane resins. The polymer is also a starting material for thermoplastic polyurethane, thermoplastic polyesters, polyetheramide and cast polyurethane elastomers, used for instance in the wheels of roller skates and skateboards.

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Potassium Methoxide

Potassium methoxide is commonly used as a catalyst for transesterification in the production of biodiesel.

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Propylene Carbonate

Propylene Carbonate is used in isocyanate (PMDI) wood binders and adhesives, urethane coatings, elastomers, lithium batteries, cosmetics, synthetic fibers and household cleaners. It is compatible with isocyanates and is used as a reactive diluent to reduce cost and to improve handling and processing properties in a variety of applications.

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Sodium Permanganate

Sodium permanganate is an inorganic compound. It is closely related to the more commonly encountered potassium permanganate, but it is generally less desirable, because it is more expensive, absorbs water from the atmosphere, and has a low melting point. Because of its high solubility, its aqueous solutions are used as etchants in printed circuitry.

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Strontium Carbonate

Strontium carbonate is the carbonate salt of strontium. The most common use is as an inexpensive colorant in fireworks. It is used for electronic applications. It is used in the preparation of iridescent glass, luminous paints, strontium oxide or strontium salts and in refining sugar. It is widely used in the ceramics industry as an ingredient in glazes. It acts as a flux and also modifies the color of certain metallic oxides. It is also used in the manufacturing of strontium ferrites for permanent magnets which are used in loud speakers and door magnets.

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Sucrose Octaacetate

Sucrose octaacetate is an acetylated derivative of sucrose. It is used commercially and industrially in a variety of applications. It is used as an inert ingredient in pesticides and herbicides. It has been approved by the FDA as a food additive. It has a bitter taste which has led to its use as bitterant and an aversive agent. The chemical has also been used to determine tasters from non-tasters in mice.

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Sulfur Hexafluoride

Sulfur hexafluoride is an inorganic, non-toxic and non-flammable gas. It has an octahedral geometry, consisting of six fluorine atoms attached to a central sulfur atom. It is a hypervalent molecule. It is used as a gaseous dielectric medium in the electrical industry, an inert gas for the casting of magnesium, and as an inert filling for insulated glazing windows. Sulfur hexafluoride plasma is used in the semiconductor industry as an etchant. The magnesium industry uses large amounts of sulfur hexafluoride as inert gas to fill casting forms. It is also used to pressurize waveguides in radar systems.

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Tert-Butyl Catechol

4-tert-Butylcatechol (TBC) is used as antioxidants for synthetic rubber, polymers and oil derivatives, it can be used as purification agent for aminoformate catalysts. TBC is available in a form of a solid crystal and 85% solution in methanol or water.

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Tetrahydrothiophene

Tetrahydrothiophene is a heterocyclic organic compound consisting of a five-membered ring containing four carbon atoms and a sulfur atom. It is the saturated analog of thiophene. It is a volatile, clear, colorless liquid with a strong unpleasant odor. Because of its smell, tetrahydrothiophene is occasionally used as an odorant in natural gas, in place of the more common ethanethiol. It is also used as a solvent, as an insecticide, and as a moth repellent. It is an intermediate in the preparation of the solvent sulfolane, which is produced by the oxidation of tetrahydrothiophene. It is also used as an electrolyte for lithium batteries. As an odorant, it has numerous advantages against ethanethiol. It is not corrosive to the gas pipes and valves, it does not cause habitual deactivation of sense of smell, and it does not cause irritant responses of coughing, tears, and headache. It is regarded to be an ideal gas indicator in use. This compound is used as an easily-displaceable ligand in chloro(tetrahydrothiophene)gold(I).

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