32610-77-8

Basic information

• Product Name: DUOLITE A-7 ION-EXCHANGE RESIN
• Synonyms: duolitea-7ion-exchangeresin;Formaldehyde,polymerwithN,N’-bis(2-aminoethyl)-1,2-ethanediamineandandphenol;formaldehyde,polymerwithn,n’-bis(2-aminoethyl)-1,2-ethanediamineandphenol;Phenol,formaldehyde,N,N’-bis(2-aminoethyl-1,2-ethanediaminepolymer;Triethylenetetramine,formaldehyde,phenolpolymer;duolite a7 free base;formaldehyde/ phenol/ triethylenetetramine copolymer;Duolite(R) A7 free base
• CAS NO: 32610-77-8
• Molecular Formula: C13H26N4O2
• Molecular Weight: 270.37114
• Product Categories: Polymers;Amberlite Weak Anion Exchangers;AmberliteResins&LC Separation Media;Anion;Anion Exchange Media;LPLC Separation Media
• Mol File: 32610-77-8.mol
• Article Data: 0

Chemical Properties

• Boiling Point: 266.5°Cat760mmHg
• Flash Point: 143.3°C
• Appearance: /
• Density: g/cm³
• Vapor Pressure: 0.00861mmHg at 25°C
• CAS DataBase Reference: DUOLITE A-7 ION-EXCHANGE RESIN(CAS DataBase Reference)
• NIST Chemistry Reference: DUOLITE A-7 ION-EXCHANGE RESIN(32610-77-8)
• EPA Substance Registry System: DUOLITE A-7 ION-EXCHANGE RESIN(32610-77-8)

Safety Data

• Hazard Codes: Xi
• Statements: 36
• Safety Statements: 26-36
• WGK Germany: 3
• Hazardous Substances Data: 32610-77-8(Hazardous Substances Data)

Usage

General Description

DUOLITE A-7 is a strong base, gel-type, anion exchange resin that is commonly used for deionization, water softening, and metal ion removal in industrial and municipal water treatment processes. It is composed of a cross-linked polystyrene matrix with quaternary amine functional groups. This resin has high operating capacity, good mechanical strength, and excellent chemical and physical stability. DUOLITE A-7 is effective in removing a wide range of anionic contaminants, such as nitrates, sulfates, and chromates, from water, making it a versatile and reliable option for various water treatment applications.

InChI:InChI=1/C6H18N4.C6H6O.CH2O/c7-1-3-9-5-6-10-4-2-8;7-6-4-2-1-3-5-6;1-2/h9-10H,1-8H2;1-5,7H;1H2