| 摘要 |
A stable polysaccharide gelled acid is produced by heating a polysaccharide solution which has not previously been heated at temperatures in excess of about 60 DEG F. at a temperature of from about 60 DEG C. up to the boiling point of the polysaccharide solution for about 5 minutes to 120 minutes and subsequently adding acid. Preferably, the polysaccharide solution when heated contains a phenol or aldehyde.
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