제3차디부틸퍼옥사이드

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 유해·위험 문구

  H225：고인화성 액체 및 증기

  H242：가열하면 화재를 일으킬 수 있음

  H341：유전적인 결함을 일으킬 것으로 의심됨 (노출되어도 생식세포 유전독성을 일으키지 않는다는 결정적인 증거가 있는 노출경로가 있다면 노출경로 기재)

  H412：장기적 영향에 의해 수생생물에 유해함

• 예방조치문구

  P210：열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.

  P220：의류 그리고 가연성 물질로부터 멀리하시오.

  P273：환경으로 배출하지 마시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P410：직사광선을 피하시오.

  P411+P235：반응성이 높은 물질이므로 보관 시 (80)℃를 넘지 않도록 유의하시오. 저온으로 유지하시오.

제3차디부틸퍼옥사이드 화학적 특성, 용도, 생산

• 개요

  무색의 유동성 액상이며 , 분자내에 -O-O- 결합을 가지는 유기과산화물이다 . 주로 XL 파이프의 가교 및 PP( 폴리프로필렌 ) 의 점도조절용 , 아크릴 수지 의 중합개시제로도 사용된다 .

• 용도

  폴리에틸렌 (HDPE, LDPE) 가교제 : XL 파이프.
  PP( 폴리프로필렌 ) 의 점도조절제.
  아크릴 수지 (Acryl Resins) 중합개시제.

• 개요

  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.

• 일반 설명

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

• 반응 프로필

  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.

• 건강위험

  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.

• 화재위험

  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.

• Carcinogenicity

  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.

• 저장

  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.

• Purification Methods

  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.

• 폐기물 처리

  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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