Applications
Calcium Polysulfide Solution is used mainly as a fungicide and fertilizer for the agriculture industry, to control wide range of fungal and other plant diseases in orchards, field crops and horticulture crops; it can also be used in various treatment systems as a metal precipitating agent. Calcium Polysulfide Solution effectively stabilizes and reduces soluble metals.
Sales Specifications
Appearance: Clear, to red orange liquid
Assay:24.0-29.0%
Odor:Slight H2S odor
Density:1.25-1.29 @ 25°C
Treatment Notes
Arsenic: Acid medium only forms various arsenic sulfides; pH>7; arsenic-sulfur compound are insoluble
Lead: Wide Range (pH: 4-9); forms lead sulfide
Copper: Close to neutral (Optimal pH: 5—7); forms copper sulfide
Zinc: Wide range (pH: 4-9); forms Zinc sulfide
Cadmium: Wide range (pH: 4-9); forms cadmium sulfide
Molybdenum: Wide range (pH: 4-9); forms molybdenum sulfide
Uranium:Wide range (pH: 4-9); forms uranium sulfide
Cyanide: Chemical Conversion produces Thiocyanate*
*Thiocyanate can be bio-treated, or it can be treated with lime, producing calcium carbonate, gypsum and ammonia. Chromium (Cr VI) can be treated with calcium polysulfide, and the Cr(VI) is reduced to Cr (III), which is then precipitated as chromium hydroxide.
While the list above indicates effective treatment may be obtained with system pH near 4.0, TKI has found that product is most stable in systems with pH greater than 5.0, to avoid potential generation of H2S.
Packing
220 gallon (2,809 lbs) tote or 5,000 gallon (53,000 lbs) tank of truck
901 Lb tote
