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The sulphonated sample (50 mg) was immersed in 10 wt% sodium chloride
aqueous solution for 24 h. The solution was titrated with 0.05M NaOH to produce the
titration curve. The acid amount was determined to be 0.40 mequiv/g. The sulphonation
conditions could sulphonate both the benzene rings and the silica.

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shaofen

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daochunhan1327

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ÒýÓûØÌû:
Originally posted by shaofen at 2009-3-27 23:12:
ÓõÄÊÇNaOHµÎ¶¨·¨²â¹ÌÌ峬ǿËáËáÁ¿£¬ÎÄÏ×ÖеÄÏÂÃæÕâ¾ä»°£º

The sulphonated sample (50 mg) was immersed in 10 wt% sodium chloride
aqueous solution for 24 h. The solution was titrated with 0.05M NaOH ...

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ZHIXUE

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nxl5096224(½ð±Ò+1,VIP+0):лл¿©~ 5-10 18:45
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5Â¥2009-05-10 10:40:41
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plszsx

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6Â¥2009-05-10 11:29:59
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ůůµÄ·ç

Òø³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by shaofen at 2009-3-27 23:12:
ÓõÄÊÇNaOHµÎ¶¨·¨²â¹ÌÌ峬ǿËáËáÁ¿£¬ÎÄÏ×ÖеÄÏÂÃæÕâ¾ä»°£º

The sulphonated sample (50 mg) was immersed in 10 wt% sodium chloride
aqueous solution for 24 h. The solution was titrated with 0.05M NaOH ...

ÎÒÒÔǰҲÓÐÕâô×öµÄ£¬µ«ÊǾÝ˵Õâ·½·¨²»Ì«ÐÐßÀ
7Â¥2009-05-11 11:30:40
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