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Purolite® MB500IND
Mixed Bed Exchange Resin - Self Indicating
Purolite MB500IND is a high quality resin
mixture for direct purification of water.
This resin mixture changes color from blue-green
to cream on exhaustion. It is designed for
use in both regenerable and non-regenerable
cartridges. It contains an indicator which
shows when the resin is exhausted and can
no longer treat the water. The chromatographic
profile is sharp when using standard flow
rates of 5-40 BV/h, hence a sharp color
change is observed and moves progressively
down the bed as the resin is exhausted.
Passage of water at recommended flow rates
through the resin, as supplied, can achieve
almost complete reduction of total dissolved
solids. The residuals produce average conductivity
values of about 0.1 µS/cm for a major
portion of the service run. However it will
be necessary to cease water production shortly
prior to complete colour change if highest
quality water is essential. Generally water
with a conductivity between 5-30 µS/cm
is obtained when the green-blue color finally
disappears. Exposure of the mixture to the
atmosphere for lengthy periods can result
in some loss in hydroxide sites of the anion
component by conversion to carbonate from
carbon dioxide in the atmosphere. This can
give rise to loss of treated water quality.
Exposure of the resin to daylight can also
result in loss of indicator color.
BASIC FEATURES:
Application - Used in a wide range of water
conditions - employing a macroporous anion
component with anion indicator
Polymer Structure - Gel/Macroporous polystyrene
crosslinked with divinylbenzene
Appearance - Spherical beads
Functional Group - Sulphonic Acid and Type
1 Quaternary Ammonium
Ionic Form as Shipped - H+ / OH-
PRODUCT INFORMATION
Anion Cation
Cation / Anion Ratio 60% 40%
Component Macroporous Strong Base Anion
Gel Strong Acid Cation
Total Capacity, (min.) 1.15 eq/l (25.1 kGr/ft3)
1.9 eq/l (41.5 kGr/ft3)
Shipping Weight (approx.) 700-735 g/l (43.7-45.9
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.) 65%
MSDS
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