Rasin kation lewatit C-249

Resin Kation lewatit C-249 digunakan untuk filter demin ataupun filter softener. LewatitŪ  C 249 is a premium grade, standard cross-linked, gel, strong acid cation exchange resin based on a styrene / DVB polymer. LewatitŪ  C 249 is especially suited for industrial water treatment applications, including demineralization, service exchange, and softening. LewatitŪ  C 249 can be used in single bed and mixed bed applications. LewatitŪ  C 249 exhibits a high ion exchange capacity combined with excellent mechanical and osmotic strength for a long operating life. LewatitŪ  C 249 is supplied in a heterodispersed particle size distribution as spherical beads in the fully swollen moist sodium form. LewatitŪ  C 249 is prepared with a minimum amount of fines (-50 mesh particles) resulting in low pressure losses during service.   LewatitŪ  C 249 is supplied in the sodium form. LewatitŪ  C 249 is also available in the hydrogen form, designated as LewatitŪ  C 267. General Description  
Ionic form as shipped Na+
Functional group Sulfonic acid
Matrix DVB / Styrene
Structure Gel
Appearance Brown, translucent
  Physical and Chemical Properties  
  metric units  
Uniformity Coefficient* max. 1.6
Bead size* > 90 %   mm 0.4 - 1.25
Effective size mm 0.50 (+/- 0.06)
Bulk density (+/- 5 %)   g/l 832
Density approx. g/ml 1.26
Water retention wt. % 45 - 48
Total capacity* min. eq/l 2.0
Volume change Na+  --> H+   max. vol. % 7
Stability at pH-range 0 - 14
Stability temperature range   °C 1 - 140
Storability of the product   max. years 2
Storability temperature range   °C -20 / 40

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