Dynamic Adsorbents’ Silica Judged Best in Industry
Dynamic Adsorbents’ silica gel products have been
found by independent laboratory analysis to be
demonstrably superior due to a low amount of fines
compared with major competitors and with the least
amount of trace metal impurities compared with all
other competitor’s products.
When announcing the results, DAI President Dr.
Mark Moskovitz said, “Our line of adsorbents
offer precisely what chromatographers have come
to expect from all DAI products – the best
alumina, the best silica and the best bonded
phase packing material available for academic or
industrial usage.”
A recent study by an independent research laboratory
found that DAI’s silica products were the industry
leaders in their categories, surpassing competitors
by almost every measure in consistency, purity and
performance.
DAI silica provides you with the
purest material you can find for your separation
needs. An analysis of silica from all major vendors
reveals that the level of unwanted iron, lead and
copper contaminants is much less than that of our
competitors – in some cases strikingly so! There is
no finer brand silica gel commercially available. We
are certain that you will be pleased with our
performance, our price, and our service.
|
Comparative Quality Check 30-70
um-(230-400 mesh) Silica Gel Column
Chromatography Grades |
|
Parameter |
Brand E |
Brand D |
Brand S |
Brand Z |
DAI |
| |
|
|
|
|
|
|
Bulk
Density gm/ml |
0.509 |
0.542 |
0.52 |
0.537 |
0.519 |
|
LOI @ 995
Degrees |
7.6 |
5.2 |
7.26 |
7.12 |
5.79 |
|
Moisture
Content % |
5.42 |
1.63 |
5.18 |
5.05 |
4.77 |
|
Ph |
6.6 |
6.4 |
6.8 |
6.7 |
6.9 |
|
Adsorption
@ 100% Humidity |
19 |
17.2 |
18 |
18 |
21.7 |
|
Si02
Content Assay % |
99.9 |
99.32 |
99.9 |
98.81 |
99.14 |
|
Iron ppm |
74.89 |
66.3 |
147.2 |
40.43 |
14.91 |
|
Lead ppm |
8.415 |
3.211 |
11.4 |
3.91 |
2.206 |
|
Zinc ppm |
6.57 |
10.1 |
44.61 |
16.7 |
1.89 |
|
Copper ppm |
3.35 |
28.23 |
84.62 |
3.048 |
2.607 |
|
Arsenic |
nil |
nil |
nil |
nil |
nil |
|
Chromium |
nil |
nil |
nil |
nil |
nil |
|
Particle
Assay |
|
|
|
|
|
|
Coarser 230 Mesh % |
5.91 |
15.5 |
8.35 |
7.52 |
14.69 |
|
Between
230-400 mesh % |
70.97 |
71.62 |
72.83 |
70.64 |
68.89 |
|
Finer than
400 mesh % |
23.12 |
12.88 |
18.82 |
21.84 |
16.42 |
| |
|
|
|
|
|
|
Specific Surface Area m2/gm |
430-485 |
360-410 |
435-470 |
460-490 |
470-510 |
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