Product Category Description:

Humidity sponges turn any container into a desiccator. Ideal for storing samples, food, pharmaceuticals, electronics, PC boards, optics, diagnostics, museum pieces, chemicals, instruments, and documents. Humidity sponges meet FDA requirements for use in direct contact with food and drugs. Sodium calcium aluminosilicate hydrate desiccant is nontoxic and is a GRAS (Generally Recognized as Safe) material. Desiccant is guaranteed to absorb approximately 16% of its weight in water. It will typically absorb approximately 37% of its weight in water, depending on relative humidity. Each bag is 7.6x7.6x0.6cm (3x3x1/4") and weighs 10g (0.35oz.).

The indicating, nonregenerable humidity sponge has white Tyvek® on one side and clear polyethylene film on the other side. This desiccator contains cobaltous chloride indicator which changes from blue to pink upon moisture absorption. When the indicator turns pink, the desiccator needs to be replaced.

The nonindicating, regenerable humidity sponge has white Tyvek on both sides. This desiccator contains a relative humidity card that changes from blue to pink to show when the bags need to be regenerated. The indicator for the relative humidity card is cobaltous chloride.

ISO Class 5 (FED-STD-209E Class 100/M3.5) cleanroom compatible.

Specifications for Control Company Humidity Sponges, Desiccator in a Bag 3151 Humidity Sponge, Nonindicating, Regenerable:

Description:		Humidity Sponge, Nonindicating, Regenerable
Unit:		Pack of 40

(Please note that the description and stock photo may not correspond to the specific model listed above)

We offer only genuine Control Company products, authorized for sale in the U.S. and other markets, so you can be sure that you are buying authentic Laboratory Apparatus with a full manufacturer's warranty in addition to our own 100% Satisfaction Guarantee. We are your premier online distributor for Control Company Laboratory Apparatus. We are an authorized supplier to all federal and state government agencies, as well as to research and educational institutions, and can facilitate volume orders on many types of laboratory equipment, lab consumables, and other products to help fulfill your specific needs. We offer Free Shipping and FREE USPS shipping to APO and FPO addresses on all orders in our store over $29.95. Please refer to our APO/FPO Shipping and Export Restrictions for more information on export to APO/FPO addresses.

In addition to the Control Company Humidity Sponges, Desiccator in a Bag Humidity Sponge, Nonindicating, Regenerable 3151/ 61161-321, we carry a full complement of Laboratory Apparatus as well as other product offerings from Control Company. We also carry a full line of Control Company accessories to help meet your laboratory and scientific needs.

For a complete selection of Control Company Laboratory Apparatus, please visit our Control Company page. For more brand name Laboratory Apparatus please visit our Laboratory Apparatus store section. To see our complete line of lab, medical, industrial, and scientific products, please see our science and lab equipment online catalog.