Свинец (II) фторид химические свойства, назначение, производство
Химические свойства
Lead fluoride is a white to colorless, odorless
crystalline (rhombic, orthorhombic) solid
Использование
Lead(II) fluoride is used in fuses, glass coatings to reflect infrared rays and phosphors for television screens and in low melting glasses. Further, it serves as a catalyst for the preparation of picoline.
прикладной
It is used as the transmission window in λ: 250 nm–10 mm and as the prism in the infrared region.
Общее описание
Odorless white solid. Sinks in water.
Профиль реактивности
Calcium carbide mixed with Lead fluoride , at ordinary temperatures, becomes incandescent [Mellor 5:862-64. 1946-47].
Угроза здоровью
Not irritating to skin or mucuous membranes; protect against chronic poisoning. Early symptoms of lead intoxication via inhalation or ingestion are most commonly gastrointestinal disorders, colic, constipation, etc.; weakness, which may go on to paralysis chiefly of the extensor muscles of the wrists and less often the ankles, is noticeable in the most serious cases. Ingestion of a large amount causes local irritation of the alimentary tract; pain, leg cramps, muscle weakness, paresthesias, depression, coma, and death may follow in 1 or 2 days. Contact with eyes causes irritation.
Пожароопасность
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.
Возможный контакт
Used to make other chemicals, underwater paints; electronic and optical parts (for growing
single-crystal, solid-state lasers); in high-temperature dryfilm lubricants; and making special grades of glass.
Перевозки
UN3288 Toxic solids, inorganic, n.o.s., Hazard
Class: 6.1; Labels: 6.1-Poisonous materials, Technical
Name Required. UN2291 Lead compounds, soluble n.o.s.,
Hazard Class: 6.1; Labels: 6.1-Poisonous materials,
Technical Name Required
Несовместимости
Violent reaction with oxidizers, chemically active metals; calcium carbide. May ignite combustibles, such as wood, paper, oil, etc
Свинец (II) фторид препаратная продукция и сырье
сырьё
препарат