Polysorbate 20 (common commercial brand names include Scattics, Alkest TW 20 and Tween 20) is a polysorbate-type nonionic surfactant formed by the ethoxylation of sorbitan before the addition of lauric acid. Its stability and relative nontoxicity allows it to be used as a detergent and emulsifier in a number of domestic, scientific, and pharmacological applications. As the name implies the ethoxylation process leaves the molecule with 20 repeat units of polyethylene glycol; in practice these are distributed across 4 different chains leading to a commercial product containing a range of chemical species. Tween and Tween 20 are registered trademarks of Croda Americas,

CAS：9005-64-5
中文别名：乳化剂 T-20;聚氧乙烯失水山梨醇月桂酸酯;
英文别名：MDL 11,939;Polysorbate 20 (NF);Polysorbate 40 (NF);Tween 20;Polysorbate 60 (NF);polyoxyethylene sorbitan monolaurate;2-[2-[3,4-bis(2-hydroxyethoxy)oxolan-2-yl]-2-(2-hydroxyethoxy)ethoxy]ethyl dodecanoate;Polysorbate;Polysorbate (INN);Polyoxyethylene (20) sorbitan monolaurate;Tween.(TM). 20;monododecanoate;
分子式：C32H60O10
分子量：604.813
精确质量：604.419
Psa：133.14
Logp：4.4626

EINECS号：500-018-3

外观与性状：淡黄色油性液体
密度：1.106
沸点：100ºC
闪点：199.4ºC
折射率：1.4685-1.4715
稳定性：Stable. Incompatible with strong oxidizing agents.
储存条件：0-6ºC

安全说明：S24/25
危险类别码：R22; R36/37/38; R37/38; R41
海关编码：34021300

生产方法
1.将 1.本品属水包油型乳化剂,可用作增溶剂、扩散剂、稳定剂、润滑剂和抗静电剂。在石油开采中作为油井生产的防蜡剂,可以清除油井的结蜡;作为降粘剂可以降低原油流动粘度提高油井产量,提高输送能力。
用途
1.本品属水包油型乳化剂,可用作增溶剂、扩散剂、稳定剂、润滑剂和抗静电剂。在石油开采中作为油井生产的防蜡剂,可以清除油井的结蜡;作为降粘剂可以降低原油流动粘度提高油井产量,提高输送能力。