Specification :

122 ( Typea) Phenolic aldehyde series weakly acidic cation exchange resin
1. Description
This is a kingd of cation exchange resin which has carboxylic acid groups [ -COOH] in the phenolic aldehyde copolymer.
This product is analogous to: Duolite S-300
2. Typical Physical and Chemical Properties:
` Matrix Phenolic aldehyde
aAppearance Orange to brown spherical particle
bFunctional group -COOH
cTotal exchange capacity ( mmol/ g) ( dry)  e4.0 H
dParticle size range ( % )  ( 0.315-1.25mm) e95
eWater retention ( % )  60 - 80
fTrue wet density ( g/ ml)  1.05 - 1.15
gApparent wet density g/ ml  0.70 - 0.80
hTotal reversible swelling % H ’ Na d55.2
iionic form as shipped: H+
3. Recommended Operating Parameters:
` Operating pH-range: 5 - 14
aMaximum operating temperature ( ° C) : 120
bWorking flow rate ( m/ h) : 10 - 30
cConcentration of regenerant ( % ) : HCl: 3 - 5 ; NaOH: 3 - 5
4. Applications:
It is mainly used in decolorization of streptomycin, colomycin, terramycin, acheomycin and other antibiotics. It is also used in decolorization and purification of amino acid, monosodium glutamate and sugar, reclamation of vitamin B12.