| http://www.w3.org/ns/prov#value | - In one example, such additives are neutralizing agents such as calcium salts (e.g., calcium carbonate or calcium phosphate) or other salts such as barium salts that increase the mechanical strength of the strands into which they are incorporated, and further act to neutralize any acidic byproducts resulting from the degradation of the strand material(s).
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