CMC value3: 60 mg/l Structure: TWEEN 20 is a polyoxyethylene sorbitol ester, with a calculated molecular weight of 1,225 daltons, assuming 20 ethylene oxide units,1 sorbitol, and 1 lauric acid as the primary fatty acid. Fatty acid constituents of this product are determined by ...
CMC0.06mM (20-25℃) acid number<=2.2mg/g impurities<=3.0% water density1.095g/ml at 25℃ (lit.) hydroxyl value96-108mg/g transition tempcloud point 76℃ suitabilitycomplies for IR spectroscopy compositionlauric acid, >=40% (balance primarily myristic, palmitic, and stearic acids) ...
CMC 0.06 mM(20-25°C) acid number ≤2.2 mg/g hydroxyl value 96-108 mg/g transition temp cloud point 76 °C density 1.095 g/mL at 25 °C(lit.) HLB 16.7 suitability complies for IR spectroscopy 在线询价 上海慧颖生物科技有限公司
Tween-20 and Tween-80 are polysorbate surfactants with a fatty acid ester moiety and a long polyoxyethylene chain. They have very low CMC, are generally gentle surfactants, do not affect protein activity and are effective in solubilization. Tweens are not common ingredients of cell lysis buffers;...
性质(Properties): HLB CMC acid number impurities density hydroxyl value transition temp suitability 16.7 0.06mM (20-25℃) <=2.2mg/g <=3.0% water 1.095g/ml at 25℃ (lit.) 96-108mg/g cloud point 76℃ complies for IR spectroscopy composition mol wt refractive index description form ...
The lowest regions in the plots of both foam height and half‐life of foam are with the Tween‐20 and BSA mixed solution, which locate around the CMC value of Tween‐20. It was concluded from the experimental results that the replacement between Tween‐20 and BSA is the main factor in ...
Tween一20与牛血清白蛋白(BSA)的相互 作用.结果表明,BSA与Tween一20的相互作用较弱,当Tween一20 浓度增大时,能将吸附于表面上的BSA分子 取代.BSAfFween一20混合体系的性质随温度的变化趋势与单一非 离子型表面活性剂相似.BSA浓度在3.7xl04～ 11.1xl0kg?L范围内,Tween一20的cmc不随BSA浓度的变化而变 化.当Tw...
Tween一20的cmc附近。该区域的存在是由于BSA与Tween一20不同的稳 泡机理所 致。在经过最低区域后,泡沫高度和泡沫半衰期明显提高,并且随着BSA浓度的增大,泡沫大小分布的均匀性增强,泡沫的致密性提高。 本论文的新颖之处: 1)通过荧光光谱测定,分析了Tween一20与BSA的结合反应,确定了Tween ...
CMC 27 mg/L density 1.044 g/mL at 25 °C (lit.) HLB 14.9 InChI 1S/C26H50O10/c1-2-3-4-5-6-7-8-9-10-11-24(30)34-19-18-31-20-22(32-15-12-27)26-25(35-17-14-29)23(21-36-26)33-16-13-28/h22-23,25-29H,2-21H2,1H3 InChI key HMFKFHLTUCJZJO-UHFFFAOYSA-N Lo...
Tween 80 浓度在 CMC 值附近时变 化急剧.随后的二维砂箱实验定量描述地下水中表面活性剂 Tween 80 对 PCE 的迁移和最终形态的影响.由于 Tween 80 可以使石英砂介质由水相润湿 转变为中间润湿或油相润湿态,相应地在 20~30 目的粗砂均质介质中 Tween 80 对 DNAPLs 迁移存在明显影响.背景溶液中表面活性剂的...