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SILICATES AND SILICA IN PULP (WET ASH METHOD)

Silica, Silicates, Pulp, Impurities, Wet ash method

Provider: TAPPI

Price: $35.00
Product Details

  • Describes a procedure for determining the silicates and silica content of pulp.
  • Pulp is wet-ashes using nitric and sulfuric acids insoluble residue is filtered, washed, ignited, and weighed as silicon dioxide.
  • For a faster but less accurate procedure for measuring all acid insoluble material.
  • Ashing temperature used in this method has been changed from 575°c (t 245 om-88) to 525°.With current as tm and Iso ash methods.
  • Prevents the degradation of calcium carbonate that can occur at the higher temperature developed using an Ashing step at 575°c,
  • Silica or silicates are normally present in pulp in very small quantities.

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