SIPERNAT® D 10 is a milled, hydrophobic precipitated silica. It is used in a great variety of defoamers due to its high effectiveness and ease of dispersion.
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Storage:
When stored in its original unopened packaging, the product has a shelf life of 24 months from the date of manufacture. Evonik precipitated silica products are extremely chemically stable. However, precipitated silicas, including this product, can absorb moisture and/or volatile organic compounds from the surrounding atmosphere. Therefore, we recommend storage in original sealed packaging and in a dry, cool place and removed from volatile organic substances. Even if a product is stored under these conditions, over periods of time the material may still pick up enough moisture to exceed the moisture content that is specified “as packaged” or at the time of packaging.