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Ди-трет-бутил пероксид структурированное изображение

Ди-трет-бутил пероксид

  • английское имяDi-tert-butyl peroxide
  • CAS №110-05-4
  • CBNumberCB8852799
  • ФормулаC8H18O2
  • мольный вес146.23
  • EINECS203-733-6
  • номер MDLMFCD00008803
  • файл Mol110-05-4.mol
химическое свойство
Температура плавления -30 °C
Температура кипения 109-110 °C(lit.)
плотность 0.796 g/mL at 25 °C(lit.)
давление пара 40 mm Hg ( 20 °C)
показатель преломления n20/D 1.3891(lit.)
Fp 34 °F
температура хранения Store at +15°C to +25°C.
растворимость 0.063g/l
форма Liquid
цвет Clear
Запах distinctive odor
Растворимость в воде immiscible
Мерк 14,3461
БРН 1735581
Стабильность May decompose explosively if heated, subjected to shock, or treated with reducing agents. Highly flammable. Refrigerate.
ИнЧИКей LSXWFXONGKSEMY-UHFFFAOYSA-N
LogP 3.2 at 22℃
Справочник по базе данных CAS 110-05-4(CAS DataBase Reference)
Непрямые добавки, используемые в веществах, контактирующих с пищевыми продуктами TERT-BUTYL PEROXIDE
FDA 21 CFR 176.170; 177.2600
Рейтинг продуктов питания EWG 1
FDA UNII M7ZJ88F4R1
Справочник по химии NIST Di-tert-butyl peroxide(110-05-4)
Система регистрации веществ EPA Di-tert-butyl peroxide (110-05-4)
больше
Заявления об опасности и безопасности
Коды опасности O,F,Xn
Заявления о рисках 7-11-68-52/53-2017/7/11
Заявления о безопасности 14-16-3/7-36/37/39-14A-61-23
РИДАДР UN 3107 5.2
WGK Германия 1
RTECS ER2450000
Температура самовоспламенения 182 °C
кода HS 2909 60 00
Класс опасности 5.2
Группа упаковки II
Банк данных об опасных веществах 110-05-4(Hazardous Substances Data)
Токсичность LD50 orally in Rabbit: > 25000 mg/kg
NFPA 704:
2
3 4
OX

рисовальное письмо(GHS)

  • рисовальное письмо(GHS)

    GHS hazard pictogramsGHS hazard pictograms

  • сигнальный язык

    опасность

  • вредная бумага

    H341:Предполагается, что данное вещество вызывает генетические дефекты.

    H225:Легковоспламеняющаяся жидкость. Пары образуют с воздухом взрывоопасные смеси.

    H412:Вредно для водных организмов с долгосрочными последствиями.

    H242:При нагревании возможно возгорание.

  • оператор предупредительных мер

    P210:Беречь от тепла, горячих поверхностей, искр, открытого огня и других источников воспламенения. Не курить.

    P220:Не допускать соприкосновения с одеждой и другими горючими материалами.

    P273:Избегать попадания в окружающую среду.

    P280:Использовать перчатки/ средства защиты глаз/ лица.

    P410:Беречь от солнечных лучей.

    P411+P235:Хранить в прохладном месте при температурах, не превышающих 30°C/86°F.

Ди-трет-бутил пероксид химические свойства, назначение, производство

Описание

Di-tert-butyl peroxide is a clear, water-white liquid. It has a specific gravity of 0.79, which is lighter than water, and it will float on the surface. It is nonpolar and insoluble in water. Di-tert-butyl peroxide is a strong oxidizer and may ignite organic materials or explode if shocked or in contact with reducing agents. In addition to being an oxidizer, Di-tert-butyl peroxide is highly flammable. It has a boiling point of 231°F (110°C) and a flash point of 65°F (18°C). The NFPA 704 designation is health 3, flammability 2, and reactivity 4. The prefix “oxy” for oxidizer is placed in the white section at the bottom of the 704 diamond.

Общее описание

Di-tert-butyl peroxide is a clear colorless liquid. (NTP, 1992)

Профиль реактивности

The explosive instability of the lower dialkyl peroxides (e.g., dimethyl peroxide) and 1,1-bis-peroxides decreases rapidly with increasing chain length and degree of branching, the di-tert-alkyl derivatives being amongst the most stable class of peroxides. Though many 1,1-bis-peroxides have been reported, few have been purified because of the higher explosion hazards compared with the monofunctional peroxides. Di-tert-butyl peroxide is unlikely that this derivative would be particularly unstable compared to other peroxides in it's class, Bretherick 1979v.

Угроза здоровью

DTBP is slightly toxic by inhalation andin general exhibits low to very low toxicityby other routes. However, toxic effectsare observed only at very high concentrations.Rats exposed to 4103-ppm vapor developedhead and neck tremor after 10 minutesof exposure (Floyd and Stockinger 1958).Other symptoms were weakness, hyperactivity,and labored breathing. However, theanimals recovered fully in 1 hour.
LD50 value, intraperitoneal rats): 3210 mg/kg
DTBP is nonirritating to the skin and mildon the eyes. It is reported to cause lungand blood tumors in mice (NIOSH 1986).However, its carcinogenicity is not yet fullyestablished.

Пожароопасность

Highly flammable and reactive; flash point 18°C (64.4°F); vapor pressure 19.5 torr at 20°C (68°F); vapor density 5.03. Its decomposition products are ethane and acetone, which enhance the fire hazard. Use a water spray to fight fire and to keep the containers cool.
DTBP forms an explosive mixture with air. The explosive range is not reported. Its decomposition products may explode above its boiling point, 111°C (231.8°F). However, as it is thermally stable and shock insensitive, its explosion hazard is much lower. It may, however, react with explosive violence when in contact with easily oxidizable substances.

Канцерогенность

A single exposure (route unspecified, but probably subcutaneous (SC)) of 14.6 mg (~365 mg/kg) produced unconvincing evidence for carcinogenicity owing to the lack of controls in 50 mice observed for more than 80 weeks. Of 35 survivors, 7 (20%) had malignant blood tumors (lymphomas) and 1 had a benign lung tumor (pulmonary adenoma) (93, 7a). Owing to its poor design, this study should be judged inadequate to determine carcinogenicity.

хранилище

Store in a cool and well-ventilated areaisolated from easily oxidizable materials.Protect against physical damage. Shippingcontainers are amber glass and polyethylenebottles or steel drums not exceeding 100-lbcapacity.

Методы очистки

Wash the peroxide with aqueous AgNO3 to remove olefinic impurities, water and dry (MgSO4). Free it from tert-butyl hydroperoxide by passage through an alumina column [Jackson et al. J Am Chem Soc 107 208 1985], and if necessary two high vacuum distillations from room temperature to a liquid-air trap [Offenbach & Tobolsky J Am Chem Soc 79 278 1957]. [Beilstein 1 IV 1619.] The necessary protection from EXPLOSION should be used.

Утилизация отходов

Di-tert-butyl peroxide is disposed on the ground in a remotearea and ignited with a long torch. 10%NaOH may be used to wash empty containers.

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