1,4二氧六环
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- CAS号:
- 123-91-1
- 英文名:
- 1,4-Dioxane
- 英文别名:
- DIOX;Dioxan;P-DIOXANE;1,4-DIOXAN;4-Dioxane;1,4-Dioxacyclohexane;Dioxane-1,4;DIETHYLENE OXIDE;AAAAA;Pfu
- 中文名:
- 1,4二氧六环
- 中文别名:
- 二烷;二噁烷;二恶烷;乙丙醇;双乙酐;二氧己环;二甲甲砜;PFU酶;对二恶烷;二氧六环
- CBNumber:
- CB00126352
- 分子式:
- C4H8O2
- 分子量:
- 88.11
- MOL File:
- 123-91-1.mol
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1,4二氧六环化学性质
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熔点:
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12 °C
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沸点:
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101 °C
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密度:
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1.034 g/mL at 25 °C(lit.)
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蒸气密度:
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3 (vs air)
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蒸气压:
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27 mm Hg ( 20 °C)
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折射率:
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n20/D 1.422(lit.)
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闪点:
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54 °F
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储存条件:
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room temp
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溶解度:
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Soluble in acetone, alcohol, benzene, and ether (Weast, 1986). Miscible with most organic
solvents (Huntress and Mulliken, 1941) including 2-methylpropanol, toluene, cychexanone, and
cyclopentanone.
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形态:
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Solution
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颜色:
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APHA: ≤20
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气味 (Odor):
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Mild ether-like odor detectable at 0.8 to 172 ppm (mean = 12 ppm)
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PH值:
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6-8 (500g/l, H2O, 20℃)
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爆炸极限值(explosive limit):
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1.7-25.2%(V)
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水溶解性:
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SOLUBLE
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敏感性:
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Hygroscopic
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最大波长(λmax):
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λ: 220 nm Amax: ≤0.70
λ: 235 nm Amax: ≤0.50 λ: 250 nm Amax: ≤0.20 λ: 270 nm Amax: ≤0.10 λ: 295-400 nm Amax: ≤0.01-
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Merck:
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14,3300
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BRN:
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102551
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Henry's Law Constant:
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4.89(x 10-6 atm?m3/mol) (static headspace-GC, Welke et al., 1998)
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暴露限值:
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TLV-TWA 25 ppm (≈90 mg/m3) (ACGIH),
100 ppm (MSHA and OSHA); carcinogenicity:
Animal Sufficient Evidence (IARC).
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Dielectric constant:
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2.2(25℃)
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稳定性:
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Stable. Incompatible with oxidizing agents, oxygen, halogens, reducing agents, moisture. Highly flammable - note wide explosive range. May form explosive peroxides in storage (rate of formation increased by heating, evaporation or exposure to light).
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InChIKey:
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RYHBNJHYFVUHQT-UHFFFAOYSA-N
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LogP:
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-0.42 at 20℃
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CAS 数据库:
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123-91-1(CAS DataBase Reference)
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(IARC)致癌物分类:
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2B (Vol. 11, Sup 7, 71) 1999
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NIST化学物质信息:
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1,4-Dioxane(123-91-1)
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EPA化学物质信息:
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1,4-Dioxane (123-91-1)
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1,4二氧六环性质、用途与生产工艺
1,4二氧六环又称二恶烷,无色液体。稍有香味。可存在于自然界很多介质中,从沐浴露、洗洁精、润肤品,到包括海鱼、烤鸡、肉制品、西红柿、番茄酱、胡椒、咖啡等多种日常食物。人体可以通过皮肤、呼吸道和消化道等途径接触二恶烷。通过职业暴露、呼吸空气、饮水或食用可能含有二恶烷的食品以及使用可能含有二恶烷的洗涤产品、化妆品、外用药品、农畜产品而接触到二恶烷。
1,4二氧六环最常见的用途是溶剂、乳化剂、去垢剂等,它可以用于生产农药、医药产品、染料、乙酸纤维素、树脂、植物油、矿物油等的溶剂,也用于油漆、清漆、增塑剂、润湿剂、香料等生产过程。通常可以在医药、化妆品、香料等特殊精细化学品制造,以及科学研究中作为溶剂、反应介质、萃取剂使用。
1,4二氧六环通过吸入、食入、经皮吸收进入体内。有麻醉和刺激作用,在体内有蓄积作用。接触大量蒸气引起眼和上呼吸道刺激,伴有头晕、头痛、嗜睡、恶心、呕吐等。可致肝、皮肤损害,甚至发生尿毒症。1,4二氧六环广泛存在于自然界中包括空气、水以及西红柿、辣椒等农产品中。一方面,大多数化妆品、洗浴用品在生产过程中无法避免地会受到一些环境因素的影响。另一方面,1,4二氧六环还是部分化妆品、洗浴用品的生产原料之一表面活性剂在生产过程中的副产品。
2017年10月27日,世界卫生组织国际癌症研究机构公布的致癌物清单,1,4二氧六环在2B类致癌物清单中。欧盟SCCS(消费者安全科学委员会)提出,化妆品中二恶烷的含量低于10ppm或以下属于安全水平,并提出应在短时间中引入该项规管意见。在我国《化妆品安全技术规范》(2015年版)中要求1,4二氧六环限值不得超过30mg/kg。《化妆品注册和备案检验工作规范》中要求,“配方中含有乙氧基结构原料的产品,应当检测1,4二氧六环。”
1,4二氧六环
上下游产品信息
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下游产品
更新日期 | 产品编号 | 产品名称 | CAS编号 | 包装 | 价格 |
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2024/01/16 | A14188 | 1,4-二烷, 99+%, stab. with ca 5-10ppm BHT
1,4-Dioxane, 99+%, stab. with ca 5-10ppm BHT | 123-91-1 | 500g | 371元 |
2024/01/16 | A14188 | 1,4-二恶烷 1,4-Dioxane | 123-91-1 | 2500g | 1204元 |
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