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DOWEX™ MR-75 LC NG
A mixed ion exchange resin for use in primary systems (CVCS) of PWR nuclear power plants.
| Product Name |
Type |
Matrix |
Functional Group |
| DOWEX MR-75 LC NG |
1:1 by equivalents cation:anion |
Styrene-DVB, Macroporous and Styrene-DVB, Gel |
Sulfonic Acid and Quaternary Amine |
| Guaranteed Sales Specification |
Units |
OH- Form |
Li7 |
| Total Exchange Capacity, min. |
eq/L |
1.2 |
1.7 (H+ Form) |
| Total Exchange Capacity, min. |
kgr/ft3 as CaCO3 |
26.2 |
37.1 |
| Water Retention Capacity |
% |
60 max. |
50 - 56 (H+ Form) |
| Particle Size Distribution |
|
|
|
| >1200 μm, max. (16 mesh) |
% |
2 |
3 |
| <420 μm, max (40 mesh) |
% |
1 |
---- |
| <300 μm, max. (50 mesh) |
% |
0.2 |
0.2 |
| Whole Uncracked Beads, min. |
% |
90 |
95* |
| Crush Strength |
|
|
|
| Average, min. |
g/bead |
350 |
---- |
| >200 g/bead, min. |
% |
95 |
---- |
| |
| Trace metals, ppm dry resin, max. |
| |
Na |
Fe |
Cu |
Al |
Mg |
Ca |
Co |
Pb |
Hg |
Heavy Metals (as Pb) |
| Cation |
60 |
100 |
30 |
50 |
---- |
---- |
30 |
30 |
20 |
10 |
| Anion |
40 |
50 |
10 |
50 |
50 |
50 |
30 |
10 |
10 |
10 |
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| Ionic conversion, min. |
| |
OH- |
Cl- |
CO3 |
SO4 |
Li7 |
| Cation |
|
|
|
|
99.7% min. |
| Anion |
95% min. |
0.1% max. |
5% max. |
0.1% max. |
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| Typical Physical and Chemical Properties |
Units |
OH- Form |
Li7 |
| Particle Density |
g/mL |
1.08 |
1.20 |
| Shipping Weight** |
g/L |
700 |
700 |
| Shipping Weight** |
lbs/ft3 |
44 |
44 |
* Data represents Whole Beads, min.
** As per the backwashed and settled density of the resin, determined by ASTM D-2187.
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®™* Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow
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