Хром (III) фторид химические свойства, назначение, производство
Химические свойства
Green crystalline powder or crystals
Физические свойства
Dark green needles (anhydrous salt) or green hexagonal crystals (trihydrate); density 3.8 g/cm3 (anhydrous fluoride), 2.2 g/cm3 (trihydrate); anhydrous salt melts at 1,100°C and sublimes above this temperature; practically insoluble in water and ethanol (anhydrous salt); trihydrate sparingly soluble in water; soluble in HCl forming a violet solution.
Использование
Printing and dyeing woolens, moth-proofing,
halogenation catalyst.
Общее описание
Chromic fluoride solution is a green crystalline solid dissolved in water. CHROMIUM(III) FLUORIDE is corrosive to metals and tissue.
Реакции воздуха и воды
Water soluble.
Профиль реактивности
Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas.
Опасность
Irritant to skin and eyes, especially in solution.
Угроза здоровью
TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
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.
Профиль безопасности
A poison by ingestion.
A corrosive. When heated to decomposition
it emits toxic vapors of Cr and F-.
Хром (III) фторид препаратная продукция и сырье
сырьё
препарат