Свинец (II) йодид
- английское имяLead(II) iodide
- CAS №10101-63-0
- CBNumberCB2771616
- ФормулаI2Pb
- мольный вес461.01
- EINECS233-256-9
- номер MDLMFCD00011163
- файл Mol10101-63-0.mol
химическое свойство
| Температура плавления | 402 °C(lit.) |
| Температура кипения | 954 °C(lit.) |
| плотность | 6.16 g/mL at 25 °C(lit.) |
| Fp | 954°C |
| температура хранения | Keep in dark place,Inert atmosphere,Room temperature |
| растворимость | Soluble in concentrated solutions of alkali iodides and sodium thiosulfate. Insoluble in alcohol and cold hydrochloric acid. |
| форма | beads |
| Удельный вес | 6.16 |
| цвет | Yellow to orange |
| Растворимость в воде | Partially soluble in water. Freely soluble in sodium thiosulfate solution. Soluble in concentrated solutions of alkali iodides. Insoluble in alcohol and cold HCl.Soluble in concentrated solutions of alkali iodides and sodium thiosulfate. Insoluble in alcohol and cold hydrochloric acid. |
| Чувствительный | Light Sensitive |
| λмакс | 539nm(neat)(lit.) |
| Гидролитическая чувствительность | 0: forms stable aqueous solutions |
| Мерк | 14,5411 |
| Константа произведения растворимости (Ksp) | pKsp: 8.01 |
| Пределы воздействия | ACGIH: TWA 0.05 mg/m3; TWA 0.01 ppm NIOSH: IDLH 100 mg/m3; TWA 0.050 mg/m3 |
| Стабильность | Stable. May discolour upon exposure to light. |
| ИнЧИКей | RQQRAHKHDFPBMC-UHFFFAOYSA-L |
| Справочник по базе данных CAS | 10101-63-0(CAS DataBase Reference) |
| FDA UNII | OTL90F2GLT |
| Справочник по химии NIST | Lead diiodide(10101-63-0) |
| Система регистрации веществ EPA | Lead(II) iodide (10101-63-0) |
| UNSPSC Code | 12352302 |
| NACRES | NA.23 |
больше
| Коды опасности | T,N | |||||||||
| Заявления о рисках | 61-20/22-33-50/53-62 | |||||||||
| Заявления о безопасности | 53-45-60-61 | |||||||||
| РИДАДР | UN 2291 6.1/PG 3 | |||||||||
| WGK Германия | 3 | |||||||||
| F | 8 | |||||||||
| TSCA | Yes | |||||||||
| Класс опасности | 6.1 | |||||||||
| Группа упаковки | III | |||||||||
| кода HS | 28276000 | |||||||||
| Банк данных об опасных веществах | 10101-63-0(Hazardous Substances Data) | |||||||||
| NFPA 704: |
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рисовальное письмо(GHS)
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рисовальное письмо(GHS)
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сигнальный язык
опасность
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вредная бумага
H302+H332：Вредно при проглатывании или при вдыхании.
H410：Чрезвычайно токсично для водных организмов с долгосрочными последствиями.
H373：Может поражать органы (Нервная система) в результате многократного или продолжительного воздействия при вдыхании.
H360Df：Может отрицательно повлиять на неродившегося ребенка. Предполагается, что данное вещество может отрицательно повлиять на способность к деторождению.
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оператор предупредительных мер
P201：Беречь от тепла, горячих поверхностей, искр, открытого огня и других источников воспламенения. Не курить.
P202：Перед использованием ознакомиться с инструкциями по технике безопасности.
P273：Избегать попадания в окружающую среду.
P301+P312：ПРИ ПРОГЛАТЫВАНИИ: Обратиться за медицинской помощью при плохом самочувствии.
P304+P340+P312：ПРИ ВДЫХАНИИ: Свежий воздух, покой. Обратиться за медицинской помощью при плохом самочувствии.
P308+P313：ПРИ подозрении на возможность воздействия обратиться за медицинской помощью.
Свинец (II) йодид химические свойства, назначение, производство
Химические свойства
Lead(II) iodide, also known as Lead Iodide, is a heavy, bright yellow, odorless powder. Photoelectrons are emitted when exposed to ultraviolet light, which is readily decomposed by light in the air. It is slightly soluble in hot water, slightly soluble in cold water and hot aniline, easily soluble in sodium thiosulfate solution, soluble in concentrated potassium iodide and concentrated sodium acetate solution, and insoluble in ethanol and cold concentrated hydrochloric acid. It reacts with sodium sulfide solution to form a lead sulfide precipitate. It reacts with alkali metal and alkaline earth metal carbonate solution to obtain lead carbonate precipitate.
Физические свойства
Yellow hexagonal crystals; density 6.16 g/cm3; melts at 402°C; vaporizes at 954°C; decomposes at 180°C when exposed to green light; slightly soluble in water (0.44 g/L at 0°C and 0.63 g/L at 20°C); Ksp 8.49x10-9 at 25°C; partially soluble in boiling water (4.1 g/L at 100°C); insoluble in ethanol; soluble in alkalis and alkali metal iodide solutions.Использование
Lead(II) iodide is used as a detector material for high energy photons including x-rays and gamma rays. It is used in photography, printing, mosaic gold, and bronzing. It exhibits ferroelastic properties and has efficiency in stopping X-ray and gamma ray, which provides excellent environmental stability.Подготовка
Lead diiodide is prepared by mixing aqueous solutions of lead nitrate or lead acetate with an aqueous solution of potassium or sodium iodide or hydriodic acid, followed by crystallization. The product is purified by recrystallization.Pb2+(aq) + 2Iˉ (aq) → PbI2(s).
Общее описание
Lead iodide appears as a yellow crystalline solid. Insoluble in water and denser than water. Primary hazard is threat to the environment. Immediate steps should be taken to limit spread to the environment. Used in printing and photography, to seed clouds and other uses.Реакции воздуха и воды
Slightly water soluble.Профиль реактивности
Lead(II) iodide has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive. Light sensitiveОпасность
Lead diiodide is toxic if ingested. The symptoms are those of lead poisoning.Угроза здоровью
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.Возможный контакт
Lead iodide is used in bronzing, gold pencils; mosaic gold; printing, and photographyПеревозки
UN3288 Toxic solids, inorganic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name RequiredМетоды очистки
It crystallises from a large volume of water. The solubility in H2O is 1.1% at ~10o, and 3.3% at ~ 100o.Несовместимости
Lead iodide has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive. Light sensitive Contact with oxidizers or active metals may cause violent reactionСвинец (II) йодид запасные части и сырье
Свинец (II) йодид поставщик
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