中文名1,4-二氧六环中文同义1，4-二氧己环;1,4-二氧六环;1,4-二氧杂环己烷;1,4二環氧己烷;1,4-二氧六圜 093-01 [3];二恶烷;二噁烷;1-十二烷基磺酸钠英文名1,4-Dioxane英文同义1,4-Dioxacyclohexane;1,4-Dioxin, tetrahydro-;1,4-dioxin,tetrahydro;dioxyethyleneether;DuPont zonyl FSO-100 fluorinated surfactants;Ethyeneglycol;Ethylene glycol ethylene ether;EthyleneetherCAS123-91-1分子式C4H8O2分子量88.11EINECS204-661-8结构式 性质熔点12 °C沸点101 °C密度1.034 g/mL at 25 °C(lit.)蒸气密度3 (vs air)蒸气压27 mm Hg ( 20 °C) 折射率n20/D 1.422(lit.) 闪点54 °F 储存条件Flammables area溶解度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.形态Solution颜色APHA: ≤20气味 (Odor)Mild ether-like odor detectable at 0.8 to 172 ppm (mean = 12 ppm)PH值6-8 (500g/l, H2O, 20℃)爆炸极限值(explosive limit)1.7-25.2%(V)水溶解性SOLUBLE最大波长(λmax)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敏感性HygroscopicMerck14,3300BRN102551Henrys Law Constant4.89(x 10-6 atm?m3/mol) (static headspace-GC, Welke et al., 1998)暴露限值TLV-TWA 25 ppm (≈90 mg/m3) (ACGIH), 100 ppm (MSHA and OSHA); carcinogenicity: Animal Sufficient Evidence (IARC).稳定性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).InChIKeyRYHBNJHYFVUHQT-UHFFFAOYSA-N(IARC)致癌物分类2B (Vol. 11, Sup 7, 71) 1999NIST化学物质信息1,4-Dioxane(123-91-1)EPA化学物质信息1,4-Dioxane (123-91-1) | |||