DOWEX M-31

Standard grade product for general catalytic applications. This catalyst has unmatched durability and dependability within the MTBE/TAME industry.

Product Name	Type	Matrix	Functional Group
DOWEX M-31	Strong Acid Cation	Styrene-DVB, Macroporous	Sulfonic Acid

Typical Physical and Chemical Properties	Units	H+ Form
Physical Form		Hard opaque beads
Typical Surface Area	m2/g	30
Average Pore Diameter	Angstroms	220
Pore Volume	%	33
Water Retention Capacity	%	50 - 54 by wt.
Whole Beads	%	99 min.
Particle Size Distribution
On 16 mesh	%	2.0 max.
% through 40 mesh	%	5 max.
Shipping Weight, approx.	kg/m3	760
Shipping Weight, approx.	lbs/ft3	47
Friablity	avg. g/bead	350
Wet Volume Acid Capacity	meq/mL, min.	1.7
Dry Weight Acid Capacity	meq/mg, min.	4.7