ДИХЛОРМОНОФТОРМЕТАН химические свойства, назначение, производство
Химические свойства
Dichlorofluoromethane is a heavy, colorless
gas or liquid (below 9C) with a slight ethereal odor.
Использование
Fire extinguishers; solvent; refrigerant.
Общее описание
Dichloromonofluoromethane is a colorless, odorless gas. Dichloromonofluoromethane is shipped as a liquid under its own vapor pressure. Contact with the liquid may cause frostbite to unprotected skin. Dichloromonofluoromethane can asphyxiate by displacement of air. Exposure of the container to prolonged heat or fire may cause Dichloromonofluoromethane to rupture violently and rocket.
Реакции воздуха и воды
Slightly soluble in water.
Профиль реактивности
Dichloromonofluoromethane is incompatible with the following: Chemically-active metals such as sodium, potassium, calcium, powdered aluminum, zinc & magnesium; acid; acid fumes .
Угроза здоровью
INHALATION: May cause giddiness, light-headedness, disorientation, nausea, vomiting, narcosis, cardiac dysrhythmias, hypotension, and death. SKIN: May cause frostbite or irritation. EYES: May cause irritation or cold injury.
Пожароопасность
Special Hazards of Combustion Products: Toxic fumes of chlorine and fluorine may be produced in fire.
Профиль безопасности
Mildly toxic by
inhalation. Experimental reproductive
effects. When heated to decomposition it
emits very toxic fumes of Cl and F-.
Возможный контакт
This material is used as a refrigerant
and a propellant gas.
Экологическая судьба
Chemical/Physical. The experimental hydrolysis half-life of dichlorofluoromethane in water at
25 °C and pH 7 is 234 yr (Jeffers and Wolfe, 1996).
Перевозки
UN1029 Dichlorofluoromethane or Refrigerant
gas R-21 Hazard Class: 2.2; Labels: 2.2-Nonflammable
compressed gas. Cylinders must be transported in a secure
upright position, in a well-ventilated truck. Protect cylinder
and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal
law (49CFR) to transport and refill them. It is a violation
of transportation regulations to refill compressed gas cylinders without the express written permission of the owner.
Несовместимости
Reacts violently with chemically active
metals: sodium, potassium, calcium, powdered aluminum;
zinc, magnesium, alkali, alkaline earth. Reacts with acids or
acid fumes producing highly toxic chlorine and fluorine
fumes. Attacks some forms of plastics, rubber, and coatings.
Утилизация отходов
Return refillable compressed
gas cylinders to supplier. Incineration, preferably after mixing with another combustible fuel. Care must be exercised
to assure complete combustion to prevent the formation of
phosgene. An acid scrubber is necessary to remove the halo
acids produced. Because of recent discovery of potential
ozone decomposition in the stratosphere, this material
should be released to the atmosphere only as a last resort
ДИХЛОРМОНОФТОРМЕТАН препаратная продукция и сырье
сырьё
препарат