Benzenesulfonic acid, mono-C9-17-branched alkyl derivs., isopropylamine salts
time:2012-09-28 16:28:29,count:0
Characteristics    excellent cleansing, foaming, emulsifying, wetting, dispersing, solubilizing abilities. As a special emulsifier, mixed with other surfactants.
Note    (1), Hardly biodegradable. Avoid to use if possible.
(2), Do not use in nitrosating environment. Reaction of isopropylamine and nitrous acid can not produce nitrosamines, however, reaction of contained secondary amine of isopropylamine and nitrous acid can produce nitrosamines. Nitrosamine is a carcinogen.
Currently, sulfonation reaction through continuous reactor (such as: falling film reactor) is the most widely used method for preparing sulfonates.
Generally, branched C9-17 alkylbenzene and sulfur trioxide react through reactor, then isopropylamine neutralizes, finally obtain product.
US patent 8,921,588 (Process for preparing sulfates and/or sulfonates in a micro-reaction system) presents a synthetic process. Conditions: mole ratio of sulfur trioxide and alkyl benzenes or other raw materials: 1:1; temperature: 30-60°C; reactor: falling film reactor.
Quality Standards & Test Methods
1. Physical and chemical indexes
Physical and chemical indexes
Actives, %, ≥
80.0 - 90.0
pH (25°C, 10%, 50% isopropanol solution)
3.0 - 10.5
Test Methods