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Date: 3-9-2017
1043
Date: 9-5-2016
911
Date: 9-5-2016
1877
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SULFONATION OF n-PARAFFINS
Linear secondary alkane sulfonates are produced by the reaction between sulfur dioxide and n-paraffins in the range of C15-C17.
The reaction is catalyzed by ultraviolet light with a wave-length between 3,300–3,600Å. The sulfonates are nearly 100% biodegradable, soft and stable in hard water, and have good washing properties. Sodium alkanesulfonates for detergent manufacture can also be produced from the free-radical addition of sodium bisulfite and alpha olefins:
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علامات بسيطة في جسدك قد تنذر بمرض "قاتل"
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أول صور ثلاثية الأبعاد للغدة الزعترية البشرية
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مدرسة دار العلم.. صرح علميّ متميز في كربلاء لنشر علوم أهل البيت (عليهم السلام)
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