Isocyanic acid 3,4-dichlorophenyl ester химические свойства, назначение, производство
Химические свойства
White low melting solid
Использование
Methyl-labeled diuron was prepared by the reaction of 3,4-dichlorophenyl- isocyanate with C '"labeled dimethylamine.Substituted urea derivatives were prepared by reacting 3,4-dichlorophenyl isocyanate with amino acids, dipeptides, histamine. The R- and S-isomers and RS-racemate of MBPU were synthesized by allowing equimolar quantities of 3,4-dichlorophenyl- isocyanate
Общее описание
White to yellow solid. Used as a chemical intermediate and in organic synthesis.
Профиль реактивности
Isocyanates and thioisocyanates, such as Isocyanic acid 3,4-dichlorophenyl ester, are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide.
Угроза здоровью
Strong irritant to tissue, especially eyes and mucous membranes
Пожароопасность
Inhalation of dust is poisonous; fire may produce irritating or poisonous gases.
Возможный контакт
Those materials used as chemical
intermediates
Перевозки
UN2250 Dichlorophenyl isocyanates, Hazard
Class: 6.1; Labels: 6.1-Poisonous materials.
Несовместимости
May form explosive mixture with air.
Isocyanates are highly flammable and reactive with many
compounds, even with themselves. Incompatible with
oxidizers (chlorates, nitrates, peroxides, permanganates,
perchlorates, chlorine, bromine, fluorine, etc.); contact may
cause fires or explosions. Reaction with moist air, water or
alcohols may form amines and insoluble polyureas and
react exothermically, releasing toxic, corrosive or flammable gases, including carbon dioxide; and, at the same time,
may generate a violent release of heat increasing theconcentration of fumes in the air. Incompatible with
amines, aldehydes, alkali metals, ammonia, carboxylic
acids, caprolactum, alkaline materials, glycols, ketones,
mercaptans, hydrides, organotin catalysts, phenols, strong
acids, strong bases, strong reducing agents such as
hydrides, urethanes, and ureas. Elevated temperatures or
contact with acids, bases, tertiary amines, and acylchlorides may cause explosive polymerization. Contact
with metals may evolve flammable hydrogen gas. Attacks
some plastics, rubber, and coatings.
Утилизация отходов
Combustion in an incinerator
equipped with afterburner and fume scrubber
Isocyanic acid 3,4-dichlorophenyl ester препаратная продукция и сырье
сырьё
препарат