Your Shopping Cart
Silicates and Silica in Pulp (Wet ash method)
Format: PDF
Language: English
Product Type: Digital
Provider: TAPPI
Shipping: Available for download - Link will be provided in My ComplianceOnline section
Language: English
Product Type: Digital
Provider: TAPPI
Shipping: Available for download - Link will be provided in My ComplianceOnline section
Price:
$53.00
Product Details
This method describes a procedure for determining the silicates and silica content of pulp.
The pulp is wet-ashed using nitric and sulfuric acids. The insoluble residue is filtered, washed, ignited, and weighed as silicon dioxide.
For a faster but less accurate procedure for measuring all acid insoluble material see TAPPI T 244 “Acid-Insoluble Ash in Pulp.”
The ashing temperature used in this method has been changed from 575°C (T 245 om-88) to 525°C. This is consistent with recent changes in TAPPI T 211 “Ash in Wood and Pulp,” and is also consistent with current ASTM and ISO ash methods. The purpose behind this is to prevent the degradation of calcium carbonate that can occur at the higher temperature. Please note that the precision statement contained in section 10 was developed using an ashing step at 575°C, and has not been repeated at the lower ashing method of 525°C.
Customers Also Bought
- Species identification of nonwood plant fibers
Price: $53 BUY NOW - PREPARATION OF MECHANICAL PULPS FOR TESTING
Price: $53 BUY NOW - IDENTIFICATION OF WOOD AND FIBERS FROM CONIFERS
Price: $53 BUY NOW - Preparation of wood for chemical analysis
Price: $53 BUY NOW - NATURAL DIRT IN WOOD CHIPS
Price: $53 BUY NOW - COMPRESSION WOOD IDENTIFICATION IN PULPWOOD
Price: $35 BUY NOW
You Recently Viewed