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Purolite® MB478
Purolite MB478 is a special
resin mixture for Electrical Discharge Machining
(EDM) deionized water. The ratio of component
resins has been specifically tailored for
full demineralization of water to provide
the maximum throughput of water of the highest
quality. This applies especially where traces
of cations such as sodium and other metal
cations that can be present as a result
of corrosion of metal alloys need to be
removed. Purolite MB478 is suitable for
use in non-regenerable cartridges and other
suitable vessels.
BASIC FEATURES:
Application - Most cost effective
mixed bed for the EDM market
Polymer Structure - Gel polystyrene crosslinked
with divinylbenzene
Appearance - Spherical beads
Functional Group - Sulphonic Acid and Type
1 Quaternary Ammonium
Ionic Form as Shipped - H+/OH-
PRODUCT INFORMATION
Cation Anion
Cation / Anion Ratio 50% 50%
Component Gel strong acid cation Gel strong
base anion
Total Capacity, (min.) 2.00 eq/l (43.70
kGr/ft3) 1.30 eq/l (28.40 kGr/ft3)
Shipping Weight (approx.) 720 -750 g/l (45.0
- 46.9 lbs/ft3)
Temp Limit, Non-Regenerable Bed 100 C (212
F)
Temp Limit, Regenerable Bed 60 C (140 F)
Mean Size Typical 0.60 - 0.85 mm
Uniformity Coefficient (max.) 1.7
Moisture Content (max.) 62%
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