MB-1-OH-H

Prominent Systems' MB-1 (H/OH forms) resin is designed to provide ultrahigh purity water. The component resins are specially selected to ensure low conductivity and low effluent TOC values.

The product is a special blend of Type I strong base gel type anion exchange resins (Prominent Systems' MBA-S1, OH) with dark black, 8% cross-linked strong acid porous gel type cation exchange resins (Prominent Systems' MBC-8B,H). The special blending is to ensure excellent hydraulic characteristics and regeneration capabilities for inorganic and organic ions.

The dark black color of the cation resin also allows the operator to easily visualize the separation of cation and anion resins in a mixed-bed ion exchange polisher during the backwash of the system.

Typical Physical, Chemical & Operating Characteristics

Typical Cation/Anion Mix Ratio: Polymer Structure: Physical Form and Appearance: Whole Bead Count: Functional Groups: Ionic Form (as shipped): Shipping Weight, approx.: Mesh Size (U.S. Std): Moisture retention: Total Exchange Capacity: pH Range, Stability:

2:3 (40% Cation : 60% Anion)  cross linked with polystyrene  Cation: tough black spherical beads  Anion: tough spherical beads  90% Min.  Cation: -SO3H+ (H form)  Anion: -N+(CH3)3OH- (OH form)  (Cation/Anion) H+/OH-  Cl– form: 721 g/l (45 lb./ft.3)  OH– form: 675 g/l (42 lb./ft.3)  Cation:  16-30  Anion:  20-45  Cation:  49–54%  Anion:  53–60%  Cation: 1.8 meq/ml Min.  Anion: 1.1 meq/ml Min.  0–14

CHEMICAL AND THERMAL STABILITY
Prominent Systems' MB-1(H/OH) resin is insoluble in dilute or moderately concentrated acids, alkalies, and in all common solvents. However, exposure to significant amounts of free chlorine, “hypochlorite” ions, or other strong oxidizing agents over long periods of time will eventually break down the crosslinking. This will tend to increase the moisture retention of the resin, decreasing it s mechanical strength, as well as generating small amounts of extractable breakdown products. MB-1’s thermal stability is limited by its anion component (MBA-S1, OH), which is thermally stable to 75 ^oC (170 ^oF). The hydroxide functional groups of the anion resins tend to degrade in water temperatures appreciably higher, thereby losing capacity, as the functional groups are gradually replaced by hydroxyl groups.