Showing 10–12 of 12 results
-
Silica Gel Blue
Silica Gel Blue
This silica gel is a bead or granule that has been washed with a concentration of cobalt chloride (a heavy metal salt). The cobalt chloride is a deep-blue color when dry and turns from blue to pink as it becomes saturated.
(No) -
Silica Gel Orange Beads
Silica Gel Orange Beads
Orange Indicating Silica Gel, sometimes known as Yellow Indicating Silica Gel, is comprised of a naturally occurring mineral silicon dioxide that is purified and processed into a beaded form. When the beads are dry, they appear yellow/orange in color, and when they have become saturated with moisture to about 15% by weight the beads will change to a green color. This type of indication enables users to visually confirm when the desiccant is needs to be replaced or regenerated.
In 1998, the European Union determined that Blue Indicating Silica Gel, which is contains cobalt dichloride, a known human toxin, and prohibited its use within European markets. Orange Silica Gel conforms to the European Union requirements for moisture indicating desiccants. Similar to Blue Silica Gel, Orange Silica gel is used in a variety of industries and applications, such as compressed air dryers, gas drying and transformer breathers.
Orange Indicating Silica Gel in a 2mm-5mm bead size. Orange Silica Gel also has a high adsorption capacity, and will remove moisture at temperatures as high as 150° F (65°C). However, it is best used at room temperature (70‐90° F /21-32°C).
Orange Indicating Silica Gel is a non-toxic, pollution-free desiccant that will meet the needs of environmentally-conscious companies. That said, Orange Silica Gel should not be used in direct contact with products that are intended for consumption, such as food and pharmaceuticals.
(No) -
Sodium Bentonite powder
Sodium Bentonite powder
Sodium bentonite expands when wet, absorbing as much as several times its dry mass in water. Because of its excellent colloidal properties, it is often used in drilling mud for oil and gas wells and boreholes for geotechnical and environmental investigations. The property of swelling also makes sodium bentonite useful as a sealant, since it provides a self-sealing, low permeability barrier. It is used to line the base of landfills, for example. Bentonite is also part of the backfill material used at the nuclear Waste Isolation Pilot Project. Various surface modifications to sodium bentonite improve some rheological or sealing performance in geoenvironmental applications, for example, the addition of polymers.
Sodium bentonite can be combined with elemental sulfur as fertilizer prills. These permit slow oxidation of the sulfur to sulfate, a plant nutrient needed for some crops like onions or garlic synthesizing a lot of organo-sulfur compounds, and maintain sulfate levels in rainfall-leached soil longer than either pure powdered sulfur or gypsum. Sulfur/bentonite pads with added organic fertilizers have been used for organic farming.
(No)