传统防腐剂
苯氧乙醇(Phenoxyethanol)是一种传统防腐剂,为无色稍带黏性的油状液体,具有轻微的芳香气味和火辣味。它微溶于水,基本不溶于矿物油,可与丙酮、乙醇和甘油任意混合。
苯氧乙醇对铜绿假单胞菌(绿脓杆菌)有显著杀灭效果,并能抑制革兰阳性菌及革兰阴性菌的生长。其机制是通过作用于细胞膜增大钾离子的透过率,降低酶活性,从而抑制细胞生长达到抗菌效果。单独使用苯氧乙醇时,低浓度下防腐效果不佳,高浓度又可能引起皮肤刺痛和灼热感,因此需要与其他防腐成分复配使用。
毒性
作为当前防腐剂标准的化合物之一,苯氧乙醇一般不会释放甲醛,相较于会释放甲醛的其他化合物,它是一个更优秀的替代品。根据《化妆品防腐剂的现状与发展》2007版数据显示,苯氧乙醇的大鼠经口半数致死量为3000 mg/kg,小鼠为4000 mg/kg,属于轻度毒性。
合成方法
采用苯酚一环氧乙烷法制备苯氧乙醇:在乙酸钠或氢氧化钠的作用下,苯酚与环氧乙烷缩合。反应后通过粗品减压蒸馏得成品,该工艺中苯酚转化率≥99%,合成收率≥95%,总产品收率达90%。反应方程式如下:
[ \text{Phenol} + \text{EO} \xrightarrow{\text{NaAc/H}_2\text{O}} \text{Phenoxyethanol} ]
此方法需在温度20 ℃和0.2―0.25 MPa的压力下进行,适合大规模工业生产。
化学性质
苯氧乙醇为无色液状液体。熔点14℃,沸点245.2℃。易溶于醇、醚及氢氧化钠溶液,微溶于水,在酸或碱中稳定,并具有芳香气味和烧灼味。
用途
苯氧乙醇是一种高沸点有机溶剂,可用于水性涂料及油墨成膜助剂、香料定香剂、油墨流畅剂、药用防腐杀菌剂、电子清洗剂及油墨慢干剂等。同时,它也具有良好的溶解性能,能与多种树脂如丙烯酸树脂、硝基纤维素、乙基纤维素、环氧树脂、醇酸树脂和苯氧基树脂等多种有机物混溶。
生产方法
由苯酚和环氧乙烷加成而得,在乙酸钠或氢氧化钠存在下反应。反应温度为200℃,压力为0.2-0.25 MPa。
参考资料
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-甲氧基乙氧基苯 | 2-methoxyethyl phenyl ether | 41532-81-4 | C9H12O2 | 152.193 |
苯氧乙酸 | 2-phenoxyacetic acid | 122-59-8 | C8H8O3 | 152.15 |
烯丙基苯基醚 | allyl phenyl ether | 1746-13-0 | C9H10O | 134.178 |
乙二醇苯醚醋酸酯 | 2-phenoxyethyl acetate | 6192-44-5 | C10H12O3 | 180.203 |
苯氧乙酸甲酯 | methyl 2-phenoxyacetate | 2065-23-8 | C9H10O3 | 166.177 |
—— | 2-phenoxyethanol, TMS derivative | 16654-47-0 | C11H18O2Si | 210.348 |
1-苯氧乙醇 | phenoxyethyl alcohol | 56101-99-6 | C8H10O2 | 138.166 |
苯氧乙酰氯 | Phenoxyacetyl chloride | 701-99-5 | C8H7ClO2 | 170.595 |
—— | bis(2-phenoxyethyl)carbonate | 22855-36-3 | C17H18O5 | 302.327 |
苯氧乙酸乙酯 | phenoxyacetic acid ethyl ester | 2555-49-9 | C10H12O3 | 180.203 |
对氯苯氧乙酸 | 4-Chlorophenoxyacetic acid | 122-88-3 | C8H7ClO3 | 186.595 |
—— | [(2-phenoxyethoxy)methyl]benzene | 84877-70-3 | C15H16O2 | 228.291 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1,2-二苯氧基乙烷 | 1,2-diphenoxyethane | 104-66-5 | C14H14O2 | 214.264 |
2-甲氧基乙氧基苯 | 2-methoxyethyl phenyl ether | 41532-81-4 | C9H12O2 | 152.193 |
苯酚,4-(2-羟基乙氧基)- | 4-(2-hydroxyethoxy)-phenol | 13427-53-7 | C8H10O3 | 154.166 |
O-[2-(苯氧基)乙基]羟胺 | O-(2-phenoxyethyl)hydroxylamine | 73941-29-4 | C8H11NO2 | 153.181 |
苯乙醚 | Phenetole | 103-73-1 | C8H10O | 122.167 |
—— | 1-ethyl-4-phenylethylene glycol | 19594-02-6 | C10H14O2 | 166.22 |
2-苯氧基乙醇甲酸酯 | 2-phenoxyethyl formate | 58214-97-4 | C9H10O3 | 166.177 |
—— | 1,5-diphenoxy-3-oxapentane | 622-87-7 | C16H18O3 | 258.317 |
—— | 2-phenoxyethyl vinyl ether | 18370-86-0 | C10H12O2 | 164.204 |
—— | 2-phenoxyethoxymethyl chloride | 102331-29-3 | C9H11ClO2 | 186.638 |
苯氧乙酸 | 2-phenoxyacetic acid | 122-59-8 | C8H8O3 | 152.15 |
(2-碘乙氧基)苯 | (2-iodoethoxy)benzene | 37137-00-1 | C8H9IO | 248.063 |
—— | (2-(methoxymethoxy)ethoxy)benzene | 90926-61-7 | C10H14O3 | 182.219 |
苯氧代乙醛 | 2-phenoxyethanal | 2120-70-9 | C8H8O2 | 136.15 |
2-氟乙氧基苯 | (2-fluoroethoxy)benzene | 405-97-0 | C8H9FO | 140.157 |
2-氯苯乙醚 | 2-chloroethoxybenzene | 622-86-6 | C8H9ClO | 156.612 |
2-苯氧基乙硫醇 | 2-Phenoxy-aethylmercaptan | 6338-63-2 | C8H10OS | 154.233 |
—— | O-(2-hydroxyethyl)resorcinol | 49650-88-6 | C8H10O3 | 154.166 |
—— | 1-allyloxy-2-phenoxy-ethane | 93066-80-9 | C11H14O2 | 178.231 |
2-苯氧乙基溴 | phenoxyethyl bromide | 589-10-6 | C8H9BrO | 201.063 |
1,1'-[亚甲基二(氧基乙烷-1,2-二基氧基)]二苯 | bis-[(2-phenoxyethyl)oxy]methane | 13879-32-8 | C17H20O4 | 288.343 |
2-苯氧基乙胺 | 2-phenoxyethanamine | 1758-46-9 | C8H11NO | 137.181 |
2-(4-氯苯氧)乙醇 | 2-(4-chlorophenoxy)ethanol | 1892-43-9 | C8H9ClO2 | 172.611 |
2-(4-碘-苯氧基)-乙醇 | 2-(4-iodophenoxy)ethanol | 29639-77-8 | C8H9IO2 | 264.063 |
2-(4-氨基苯氧基)乙醇 | 2-(4-aminophenoxy)ethanol | 6421-88-1 | C8H11NO2 | 153.181 |
2-(4-溴苯氧基)乙醇 | 2-(4-bromophenoxy)ethanol | 34743-88-9 | C8H9BrO2 | 217.062 |
3-(2-苯氧基乙氧基)丙腈 | 3-(2-phenoxy-ethoxy)-propionitrile | 6328-54-7 | C11H13NO2 | 191.23 |
乙二醇苯醚醋酸酯 | 2-phenoxyethyl acetate | 6192-44-5 | C10H12O3 | 180.203 |
2-苯氧基乙基氯甲酸酯 | 1-chlorocarbonyloxy-2-phenoxy-ethane | 34743-87-8 | C9H9ClO3 | 200.622 |
—— | 2-phenoxyethyl carbamate | 31432-77-6 | C9H11NO3 | 181.191 |
—— | 2-phenoxyethanol, TMS derivative | 16654-47-0 | C11H18O2Si | 210.348 |
—— | 4-phenoxy-1-butyn-3-ol | 88462-64-0 | C10H10O2 | 162.188 |
N-甲基-2-苯氧基乙基胺 | N-methyl-2-phenoxyethanamine | 37421-04-8 | C9H13NO | 151.208 |
2-(2-羟基乙氧基)苯酚 | 2-(2-hydroxyphenoxy)ethanol | 4792-78-3 | C8H10O3 | 154.166 |
苯甲醚 | methoxybenzene | 100-66-3 | C7H8O | 108.14 |
—— | Phosphorigsaeure-di-<2-phenoxy-ethylester> | —— | C16H19O5P | 322.298 |
—— | 3-(2- |
170678-39-4 | C11H16O4 | 212.246 |
—— | 2-phenoxyethyl methylcarbonate | —— | C10H12O4 | 196.203 |
三(2-苯氧基乙基)亚磷酸酯 | Tris-<2-phenoxy-ethyl>-phosphit | 4486-47-9 | C24H27O6P | 442.449 |
—— | (E)-1,4-diphenoxybut-2-ene | 15779-52-9 | C16H16O2 | 240.302 |
—— | 1-phenoxyethyl-3-methoxy-1,2-propanediol | 153904-87-1 | C12H18O4 | 226.273 |
丙酸-2-苯氧基乙酯 | 2-phenoxyethyl propanoate | 23495-12-7 | C11H14O3 | 194.23 |
—— | carbonic acid ethyl ester-(2-phenoxy-ethyl ester) | 40496-06-8 | C11H14O4 | 210.23 |
—— | bis(2-phenoxyethyl)carbonate | 22855-36-3 | C17H18O5 | 302.327 |
—— | ethylene glycol monophenyl ether phosphate | 18168-30-4 | C8H11O5P | 218.146 |
N,N-二甲基-2-苯氧基乙胺 | dimethyl(2-phenoxyethyl)amine | 13468-02-5 | C10H15NO | 165.235 |
2-叠氮乙氧基苯 | 2-(phenoxy)ethyl azide | 70659-90-4 | C8H9N3O | 163.179 |
2-苯氧基乙基氯乙酸酯 | 2-phenoxyethyl chloroacetate | 103-57-1 | C10H11ClO3 | 214.649 |
—— | 2-<(2-phenoxyethoxy)methyl>oxirane | 14435-46-2 | C11H14O3 | 194.23 |
1,4-苯并二恶烷 | benzo-1,4-dioxane | 493-09-4 | C8H8O2 | 136.15 |
2-苯氧基乙基单溴乙酸酯 | 2-bromoacetic acid 2-phenoxyethyl ester | 56521-82-5 | C10H11BrO3 | 259.1 |
2-苯氧基乙基丙烯酸酯 | 2-phenoxyethyl acrylate | 48145-04-6 | C11H12O3 | 192.214 |
—— | 1-Chloro-3-(2-phenoxyethoxy)propan-2-OL | 55773-75-6 | C11H15ClO3 | 230.691 |
对氯苯氧乙酸 | 4-Chlorophenoxyacetic acid | 122-88-3 | C8H7ClO3 | 186.595 |
—— | sulfuric acid mono-(2-phenoxy-ethyl ester) | 37930-24-8 | C8H10O5S | 218.23 |
—— | 2-phenoxyethyl methanesulfonate | 141482-06-6 | C9H12O4S | 216.258 |
—— | methoxy-acetic acid-(2-phenoxy-ethyl ester) | 60359-62-8 | C11H14O4 | 210.23 |
—— | (2-phenoxy-ethoxy)-acetic acid ethyl ester | 2296-06-2 | C12H16O4 | 224.257 |
—— | β-phenoxyethyl 3-hydroxy propionate | 60359-41-3 | C11H14O4 | 210.23 |
[2-(2-苯氧基乙氧基)乙基]二乙胺 | 5275525 (Hit2Lead) | 24480-59-9 | C14H23NO2 | 237.342 |
—— | tri(ethoxy)(2-phenoxyethoxy)silane | —— | C14H24O5Si | 300.427 |
—— | di(ethoxy)di(2-phenoxyethoxy)silane | —— | C20H28O6Si | 392.524 |
—— | di(methoxy)di(2-phenoxyethoxy)silane | —— | C18H24O6Si | 364.47 |
—— | Si(Oet-2-Oph)4 | 18758-29-7 | C32H36O8Si | 576.719 |
—— | phenoxyacetic acid 2-phenoxyethyl ester | 5421-29-4 | C16H16O4 | 272.301 |
—— | 1-phenoxy-2-p-ethylphenoxyethane | 107550-63-0 | C16H18O2 | 242.318 |
2-苯氧乙基丁酸酯 | 2-phenoxyethyl butyrate | 23511-70-8 | C12H16O3 | 208.257 |
—— | Cyanessigsaeure-β-phenoxyethyl-ester | 32804-78-7 | C11H11NO3 | 205.213 |
—— | 3-methoxy-propionic acid-(2-phenoxy-ethyl ester) | —— | C12H16O4 | 224.257 |
2-(2-氨基苯氧基)乙醇 | 2-(2-aminophenoxy)ethanol | 42876-07-3 | C8H11NO2 | 153.181 |
1-溴-4-(2-丁氧基乙氧基)苯 | 1-bromo-4-[2-(butoxy)ethoxy]benzene | 39255-24-8 | C12H17BrO2 | 273.17 |
2-苯氧基乙基丁-2-烯酸酯 | 2-Phenoxyethyl but-2-enoate | 60359-25-3 | C12H14O3 | 206.241 |
—— | oxydi-acetic acid bis-(2-phenoxy-ethyl ester) | 16529-54-7 | C20H22O7 | 374.39 |
苯基乙烯醚 | vinyl phenyl ether | 766-94-9 | C8H8O | 120.151 |
2-(2-溴-苯氧基)-乙醇 | 2-(2-bromophenoxy)ethanol | 34743-89-0 | C8H9BrO2 | 217.062 |
—— | 1-(2-phenoxy-ethoxy)-1,2,2-trifluoroethene | 245108-08-1 | C10H9F3O2 | 218.175 |
—— | 2-Phenoxyethyl [(propan-2-yl)oxy]acetate | 60359-63-9 | C13H18O4 | 238.284 |
—— | 2-phenoxyethyl pivalate | 58214-99-6 | C13H18O3 | 222.284 |
—— | β-phenoxyethyl O-acetylglycolate | 60359-58-2 | C12H14O5 | 238.24 |
1-(异丙基氨基)-3-苯氧基-2-丙醇 | (+/-)-1-isopropylamino-3-phenoxypropan-2-ol | 7695-63-8 | C12H19NO2 | 209.288 |
—— | 1-(butylamino)-3-phenoxypropan-2-ol | 29638-63-9 | C13H21NO2 | 223.315 |
—— | DL-lactic acid-(2-phenoxy-ethyl ester) | 6283-84-7 | C11H14O4 | 210.23 |
—— | 1-phenoxybut-3-yn-2-one | 126959-19-1 | C10H8O2 | 160.172 |
—— | phosphoric acid bis-(2-phenoxy-ethyl ester) | 107433-91-0 | C16H19O6P | 338.297 |
—— | 2-Phenoxy-aethyl-trimethylsilylsulfid | 16654-62-9 | C11H18OSSi | 226.415 |
三乙基(2-苯氧基乙氧基)硅烷 | 2-Phenoxy-aethyl-triaethylsilylaether | 16654-60-7 | C14H24O2Si | 252.429 |
—— | [(2-phenoxyethoxy)methyl]benzene | 84877-70-3 | C15H16O2 | 228.291 |
—— | β-phenoxyethyl pyruvate | 60359-42-4 | C11H12O4 | 208.214 |