Tokuyama Corporation

Shunsuke Hosaka

Masayuki Moriwaki

Kikuo Yamamoto

Yasutaka Komatsu

Tadahiro Fukuju

Akihiro Saito

Dai Tsunoda

Jun Kawakami

Naoya Okada

Masanari Ishizuki

Provided is a high-purity isopropyl alcohol in which the concentration of a C7-12 acetal compound is 100 ppb or less on a mass basis, the concentration of the acetal compound in an accelerated test involving heating for 4 hours at 80° C. in a nitrogen atmosphere is increased by a factor of 30 or less with respect to the value thereof prior to heating, and the concentration of the acetal compound is maintained at a value of 100 ppb or less on a mass basis. Also provided is a method for manufacturing said high-purity isopropyl alcohol.

High-purity isopropyl alcohol and method for manufacturing same

A method of producing a chlorinated hydrocarbon having 3 carbon atoms, comprising a conversion step for converting a chloropropane represented by the following formula (1) into a chloropropane represented by the following formula (2) by reacting it with chlorine in the presence of anhydrous aluminum chloride.CCl&#x2014;CClH&#x2014;CClH&#x2003;&#x2003;(1)(In the above formula (1), m is 1 or 2, and n is an integer of 0 to 3.)CCl&#x2014;CClH&#x2014;CClH&#x2003;&#x2003;(2)(In the above formula (2), m and n are the same integers as in the formula (1), respectively.)

Method of producing a chlorinated hydrocarbon having 3 carbon atoms

A process of making a chlorinated hydrocarbon through a thermal dehydrochlorination step in which an unsaturated compound represented by the following general formula (2) is obtained by thermally decomposing a saturated compound represented by the following general formula (1).CCl&#x2014;CClH&#x2014;CClH&#x2003;&#x2003;(1)CCl&#x2550;CClH&#x2014;CClH&#x2003;&#x2003;(2)(in the above formulas, m is 1 or 2, and n is an integer of 0 to 3.)

Process of making a chlorinated hydrocarbon

A process of making a chlorinated hydrocarbon through a thermal dehydrochlorination step in which an unsaturated compound represented by the following general formula (2) is obtained by thermally decomposing a saturated compound represented by the following general formula (1).CCl&#x2014;CClH&#x2014;CClH&#x2003;&#x2003;(1)CCl&#x2550;CClH&#x2014;CClH&#x2003;&#x2003;(2)(in the above formulas, m is 1 or 2, and n is an integer of 0 to 3.).

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Shunan, Japan

Shunsuke Hosaka