ALDEX Strong Base Anion Series

SB-1P OH Strong Base Anion Exchange Resin – Hydroxide Form

Aldex SB-1P OH is a high capacity, gel type strong base type 1 anion exchange resin supplied in the hydroxide (OH) form. It is based on a styrene-divinylbenzene copolymer matrix with quaternary ammonium functional groups. Aldex SB-1P OH is specifically designed to give high throughput and economical operation in demineralizer applications.

Download Aldex SB-1P OH Technical Data Sheet (PDF)
Download Aldex-SB-1P-OH-en-francés (PDF)

Physical Chemical Properties

Polymer Structure:Gellular polystyrene -
divinylbenzene matrix
Ionic Form as Shipped:OH-
Quaternary Ammonium,
Type 1
Physical Form: Spherical beads
Moisture Content:55 to 65%
Uniformity Coefficient:1.4 maximum
Reversible Swelling, Cl- to OH-: 20% maximum
Conversion to OH Form:≥ 95%
Conversion to Cl Form:≤ 0.5%
Conversion to CO3 Form:< 5.0%
Conversion to SO4 Form:≤ 0.1%
Shipping Weight:40 to 42 lbs per cubic foot
Total Capacity OH- Form:1.0 eq/l (21.8 Kgr/ft3)
Specific Gravity:1.07

Recommended Operating Conditions

Maximum Temperature:

Cl- Form
OH- Form


SB-1P OH Features

Very Low Color, Taste or Odor

Aldex SB-1P OH meets the requirements for paragraph 173.25 of the Food Additive Regulation of the U.S. Food and Drug Administration.

Long Life

Strong and durable beads insure long service life.


Aldex Chemical has over 34 years of field usage by thousands of customers demonstrating the reliability of Aldex ion exchange resins, zeolites, and other water treatment media.


Demineralization; suitable for whole bead or powdered resin usage.

Safety Information

A material safety data sheet is available for Aldex SB-1P OH. Copies can be obtained from Aldex Chemical Co., LTD. Aldex SB-1P OH is not a hazardous product and is not WHMIS controlled.

Caution: Acidic and basic regenerant solutions are corrosive and should be handled in a manner that will prevent eye and skin contact. Before using strong oxidizing agents in contact with ion exchange resin, consult sources knowledgeable in the handling of these materials.