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Z-90 Defoamer -Food Grade Defoamer

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Z-90 Defoamer -Food Grade Defoamer Z-90 Defoamer -Food Grade Defoamer- Technical Information Product Description Z-90 Defoamer food-grade antifoaming agent is a water-based silicone emulsion designed to control foam in aqueous food processing applications. The functional properties developed especially for these antifoams is to eliminate and prevent excessive foam, which include: quick dispersibility, slight insolubility, relative stability, and a high degree of spreadability in the foaming system. The primary active ingredient, polydimethyl siloxane, is an FDA-approved liquid silicone polymer. It is USDA approved to be used in cleaning solutions and also as a direct additive to food products. Z-90 Defoamer functions both as an antifoam (prevents foam formation) and as a defoamer (collapses foam formation). Z-90 Defoamer utilizes only food-grade, nonionic emulsifiers; and contains only ingredients that are recognized by qualified experts as safe in food products according to the Code of Federal Regulations, Title 21, Part 173.340. It may therefore be used as direct food additives in most foods. As a processing aid, Z-90 Defoamer is considered a "secondary direct food additive" and imparts no flavor, odor, or functional attributes to the food. Anderson Chemical Company certifies that this product is acceptable for use as a general cleaning agent on all surfaces, or for use with steam or mechanical cleaning devices in all departments and as a foam control compound (former USDA A1, Q5 authorization). Properties Form.................................................................................. White viscous liquid Specific Gravity,Density.................................................. 1.00@68°F, 8.33 lb./gal. Viscosity........................................................................... 1,000-4,000 cP @20 rpm pH, (Neat - as is)............................................................... 7.5-8.25 Foaming Tendency.......................................................... Antifoaming agent at all use temperatures Maximum Solubility......................................................... Water insoluble Phosphates....................................................................... No inorganic phosphates Corrosivity (Use Solutions), ASTM Methods................. Safe on 304 SS, 316 SS, brass, copper, mild steel, and aluminum Material Compatibility (Undiluted Product)...................... Safe on most all plastics, metals, and materials of construction Material Compatibility (Diluted Product).......................... Do not use upstream of polysulfone UF) or thin film polyamide (RO, NF) membranes Composition..................................................................... Water-based silicone emulsion (as polydimethylsiloxane), food-grade nonionic emulsifiers Directions for Use According to 21CFR173.340 (a) (2) (and based on the silicone level in the product) the level of Z-90 Defoamer permissible in food is 100 ppm (0.01% - both by wt%/wt% or vol%/vol%). Add 12.8 fl. oz. Z-90 Defoamer per 1,000 gallons of fluid food in the process to be defoamed. For nonfood processes, lower or higher use levels may be applied according to the level of defoaming required. Note: zero ppm of this product is permitted in milk. To control foam, the silicone antifoam agent may be added “as is” directly to the foaming process, or they may be diluted with water immediately prior to application. While it is sometimes preferable to dilute the antifoam prior to use, a diluted antifoam is not often stable for a long period of time and should be used as soon as possible. It is also advisable to ensure that a diluted antifoam is periodically mixed or thoroughly stirred prior to use. Each foaming problem is unique and requires different treatment levels of antifoam. Use only the minimum amount of antifoam required to control the foam. Direct food-additive applications are limited to a federally defined legal maximum of silicone content remaining in the food after processing (see above). If higher levels of antifoam are initially used during processing, it is essential that the final concentration of silicone present in the food not exceed the legal limit. Experimentation is usually necessary to optimize the amount of antifoam used in a given process, and thorough testing should always be conducted to determine the suitability and compatibility of the antifoam with the foaming system and processing equipment. Consider carefully downstream processing from the point of use, as UF and RO membrane systems should not be exposed to fluid foods treated with silicone-based antifoams. An authorized technician servicing your account will establish a defoaming program tailored to your specific requirements. Safety Precautions Caution: Keep out of reach of children. Read label and SDS information for complete listing of hazards. The technical information and suggestions for use made herein are based on ANDERSON Chemical Company’s research and experience, and are believed to be reliable. Such information 9/18/2018 and suggestions do not constitute a warranty, expressed or implied, and no patent liability can be assumed. Since ANDERSON Chemical Company has no control over the conditions under which the product is stored, handled, used or applied, buyer must determine individually, by preliminary tests or otherwise, the suitability of the product for the intended purpose..
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