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Encapsulated water soluble chemicals for use in controlled time release applications, methods of encapsulating the chemicals and methods of using the encapsulated chemicals are provided. The methods of encapsulating the chemicals are basically comprised of forming a first coating of a dry hydrophobi

Encapsulated water soluble chemicals for use in controlled time release applications, methods of encapsulating the chemicals and methods of using the encapsulated chemicals are provided. The methods of encapsulating the chemicals are basically comprised of forming a first coating of a dry hydrophobic film forming material or a sparingly soluble material which provides a dry shield on the chemical and then forming a second coating of a porous cross-linked hydrophilic polymer on the first coating which prevents the substantial dissolution of the resulting encapsulated chemical for a selected period of time.

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1. A method of encapsulating a water soluble particulate solid chemical for use in controlled time release applications comprising the steps of:(a) forming on said chemical a first coating of a hydrophobic film forming material or a sparingly soluble material which provides a dry shield on said chem

1. A method of encapsulating a water soluble particulate solid chemical for use in controlled time release applications comprising the steps of:(a) forming on said chemical a first coating of a hydrophobic film forming material or a sparingly soluble material which provides a dry shield on said chemical, said hydrophobic material or sparingly soluble material being present in said first coating in an amount such that when in contact with water it provides a delay in the release of said chemical for a time period of less than about 2 hours; and (b) forming on said first coating, a second coating of a porous cross-linked hydrophilic polymer, said cross-linked hydrophilic polymer being present in said second coating in an amount such that when contacted with water, said second coating prevents the substantial dissolution of the resulting encapsulated chemical for a selected period of time.