Амберлит DP 1

Identification

Amberlite DP 1 is an ion exchange resin from the Amberlite line produced by Rohm and Haas. CAS number 64333-21-7. The international name is Amberlite DP 1, the synonym in Russian catalogs is Amberlite DP 1. It refers to weakly acidic cation exchange resins on a cross-linked polymer matrix.

Physico-chemical characteristics

• Density: 1.17 g/cm3
• Delivery form: granular ion exchange resin

Class of substance and principle of action

Amberlite Series weakly acidic cation exchange resins contain carboxyl functional groups anchored in a cross-linked polymer matrix. In the H-form, such a resin dissociates with the release of a proton and exchanges it for metal cations from solution. The affinity for di- and trivalent cations - calcium, magnesium, copper, nickel - is higher than for sodium and potassium ions, therefore the resin effectively binds hard and heavy metals, leaving singly charged ions in solution. Compared to strong acid sulfocation resins, weak acid resins exchange ions only in the presence of alkalinity of the solution and operate in a narrow pH range, but are completely regenerated with less acid, which reduces the consumption of reagents and the volume of acid waste during regeneration.

Scope of application

• softening and partial desalination of water, reducing temporary (carbonate) hardness
• capture of heavy metal cations - copper, nickel, calcium, magnesium - from process and waste waters
• chromatographic separation and purification in the food and pharmaceutical industries
• catalysis of esterification and hydrolysis reactions, where the resin acts as a reusable solid acid
• demineralization of sugar syrups, juice concentrates and other food solutions
• post-treatment of condensate and circulating water at energy and chemical enterprises

Operational cycle

The operating cycle of the resin consists of a sorption phase, when the solution is passed through a layer of granules and metal cations replace the proton of the carboxyl group, and a regeneration phase, when an acid solution is passed through the depleted layer and the exchange capacity is restored. After regeneration, the resin is washed to remove acid residues and reaction products, after which the cycle is repeated. This multiple turnover makes ion exchange resins a cost-effective alternative to disposable sorbents and reagent metal deposition.

Safety Information

• Hazard class code: 36/37/38 - irritating to eyes, respiratory tract and skin
• Safety instructions: 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical attention.
• Safety instructions: 36/37/39 - Wear suitable protective clothing, gloves and eye and face protection

Storage and transportation

Store in the original container, in a cool, dry, ventilated area, away from strong oxidizing agents and heat sources, avoiding drying out of the granules. When loading resin into columns, when working with dry product and during the regeneration process, avoid the formation of dust and contact with skin and eyes, use gloves, safety glasses and protective clothing in accordance with the specified safety instructions. Transportation is carried out in the manufacturer's standard packaging without special requirements for dangerous goods.