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Other Names: Hot starch, cooked starch, raw starch, starch slurry. For recommendations on clay and starch mixtures in the paper industry see Paper Coatings.
Formula: (C6H10O5)X
Sp. Gr.: 1.5
Viscosity: Varies from a few cPs. to at least 20,000 cPs., depending on type of starch, amount of liquid in the slurry, temperature, etc.
Remarks: Starch is a white, tasteless powder; insoluble in cold water, forms a jelly with hot water. It is derived from corn, arrowroot or potatoes. It is used for making adhesives, for the sizing and finishing of textiles, in foods, in sizing paper, in making explosives, in medicines, face powders, cosmetics, bookbinding, making glucose, malt sugar, caramel and in cattle feeds.
Pump Notes: Construction varies from cast iron to stainless steel. Buna n elastomers are normally acceptable. Starches are generally shear sensitive liquids; the pump design must be capable of handling that type of liquid.