НЕОПЕНТИЛ ГЛИКОЛЬ

Химические свойства

white solid

Использование

2,2-Dimethyl-1,3-propanediol may be used in the synthesis of:

• 2,2-dimethyl-1,3-propanediol cyclic phosphorochloridate
• 2,2-dimethyl-1,3-propanediol cyclic phenylphosphonate
• [1′,3′-(2′,2′-dimethylpropylene)]-2-iodo-3-octyl-5-thienylboronate
• cyclic carbonate
• 2,2-dimethyl-1,3-propanediol bis(cyclic-2,2-dimethyltrimethylene phosphite)

Общее описание

White crystalline solid. Melting point 130°C.

Реакции воздуха и воды

Soluble in water.

Профиль реактивности

2,2-Dimethyl-1,3-propanediol may generate toxic gases in combination of with alkali metals, nitrides, and strong reducing agents. Reacts with inorganic acids and carboxylic acids to form esters plus water. Converted to aldehydes or acids by oxidizing agents. May initiate the polymerization of isocyanates and epoxides.
In addition to the reactions typical of primary alcohols, such as ester, ether, and carbamate (urethane) formation, 1,3-diols give six-membered cyclic derivatives with carbonyl compounds, carbonates, phosphites, sulfifites, and borates.

Угроза здоровью

May be harmful by ingestion or skin absorption. Causes eye and skin irritation. Material is irritating to mucous membrane and upper respiratory tract. INHALATION: Call for medical aid. Remove to fresh air. If breathing has stopped, give artificial respiration. If breathing is difficult, give oxygen.

Пожароопасность

Special Hazards of Combustion Products: Emits toxic fumes under fire condition.

Растворимость в воде

Neopentyl glycol is soluble in water, alcohols, and ketones, moderately soluble in hot aromatic solvents, such as benzene and toluene, and relatively insoluble in aliphatic and cycloaliphatic solvents.

Методы очистки

Crystallise the diol from *benzene or acetone/water (1:1). [Beilstein 1 IV 2551.]