PH AND ELECTRICAL CONDUCTIVITY OF HOT WATER EXTRACTS OF PULP, PAPER, AND PAPERBOARD

• Procedure provides for the extraction of pulp, paper, and paperboard samples using boiling reagent water.
• Followed by determination of the ph and conductivity of the extract.
• pH measurement of the extract indicates presence of either acidic or basic ions which could contribute to potential degradation of the cellulose in the end product.
• Conductivity measurement indicates the level of residual ionic impurities in pulp.
• Shows effectiveness of washing in the pulp manufacturing process and identifies the suitability of pulp for use in electrical and antitarnish product applications.
• Extract conductivity of highly purified (high alpha) pulps increases on Aging from the time of manufacture.

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