Ion Exchange Media

Specialty absorbents, solidification agents, ion exchange media and dust suppression.

WTZ 100

WTZ 100 is characterized by its high surface area, high cation exchange capacity (CEC) and physical durability. Its chemical composition, high CEC, and abrasion resistance make it an ideal water filtration media, and its pozzolanic properties prove highly valuable in cementitious products. WTZ 100’s unique chemical and physical properties also allow for gas adsorption and water absorption/desorption, making it ideal for multiple industrial and environmental end-use applications, including radioactive waste control, aquaculture, water filtration and purification.

TYPICAL PROPERTIES

Form	Granules & Powders
Color	Reddish / Tan (dry brightness 40)
Ring Members	8
Crystal Size	Less than 1 micron
Crystallinity	+90%
Density	1.73 g/cm3
Pore Size	4.1 by 3.7 Angstroms
Effective Pore Diameter	4.3 Angstroms
Cavity Size	11.0 by 6.6 Angstroms
Total Pore Volume	.468 cm3/g
Surface Area	520 m2/g
Crystal Void Volume	.47 cm3/cm3
Packing Density	Approx. (40 – 44 lbs/ft3)
SiO2/Al2O3 Ratio	Approx. 4:1
MOH’s Hardness	4 – 5
Moisture as Packaged	Less than 20% by Weight
pH of 1% Dispersion	8.5
Stability	pH of 3 through 12
Ion Exchange Capacity	2.50 meq/g
Sorption Capacity	>15 wt. % H2O at 10% RH

TYPICAL CHEMICAL ANALYSIS (Anhydrous Basis)

SiO2	Al2O3	Fe2O3	CaO	MgO	Na2O	K2O	Dominant Cation
68.1	18.59	2.84	0.27	0.75	8.32	1.12	Na

EXCHANGE SELECTIVITIES

Tl+>Cs+>K+>Ag+>Rb+>NH4+>Pb2+>Na+ = Ba2+>Sr2+>Ca2+>Li+

EXCHANGE OF HEAVY METAL IONS

Weight Percent of Heavy Metals Retained in Anhydrous CABSORB after Ion Exchange from a .10 mg/ml solution:

AgNo3, Pb(NO3)2, CoSO4 and a 0.025 mg/ml solution of CuSO4 at the Initial pH Indicated for each Solution.

Aq		Pb		Cu		Co
pH	Wt%	pH	Wt%	pH	Wt%	pH	Wt%
5.30	21.85	3.80	15.27	3.43	3.17	2.91	2.82

WTZ 200

WTZ 200 is unique among natural zeolites. It is characterized by its light weight, extremely high surface area, and high cation exchange capacity (CEC). Its chemical composition and affinity for radionuclides make it a proven and highly effective media for nuclear remediation applications, and its high surface area is valued in gas separation and specialty desiccant markets. End-use applications of WTZ 200 include hazardous waste cleanup of arsenic and thallium, radioactive waste control, personal hygiene products, and air and water filtration and purification.

TYPICAL PROPERTIES

Form	Granules & Powders
Color	Tan – Green
Pore Diameter	4.0 Angstroms
Pore Volume	15%
Specific Surface Area	40 m²/g
Bulk	45 – 80 lbs/ft³ 760 – 1,283 kg/m³
Solid Density	100 lbs/ft³ 1,603 kg/m³
Alkali Stability	pH of 7 – 10
Acid Stability	Ph of 3 – 7
Thermal Stability	1,202 ͦF 650 ͦC
Ion Exchange Capacity	1.85 milliequivalents/g

TYPICAL CHEMICAL ANALYSIS

SiO₂	Al₂O₃	Fe₂O₃	CaO	MgO	Na₂O	K₂O	MnO	TiO₂
69.1	11.9	0.7	0.8	0.4	3.5	3.8	0.02	0.1

MAJOR EXCHANGEABLE CATIONS

Rb⁺	Na⁺	Ba⁺²	Mg⁺²	Li⁺	Ag⁺	Sr⁺²	Fe⁺³	K⁺	Cd⁺²
Cu⁺²	Co⁺³	Cs⁺	Pb⁺²	Ca⁺²	Al⁺³	NH⁺⁴	Zn⁺²	Hg⁺²	Cr⁺³