/* Main Variables */ :root { --main-dark: black; --main-light: white; } /* Global Styles */ ::selection { background: var(--main-dark); color: var(--main-light); text-shadow: none; } img::selection, svg::selection { background: transparent; } /* Link color inherits from parent font color */ a { color: inherit; } /* Disable / enable clicking on an element and its children */ .no-click { pointer-events: none; } .can-click { pointer-events: auto; } /* Target any element with a certain "word" in the class name */ [class*="spacer"] { }
product sheet

Copper Sulfate
Pentahydrate Fine Crystals (Pesticide Label)

copper sulfate crystals

Copper Sulfate Pentahydrate is an odorless blue crystal that readily dissolves in water. It is also soluble in methanol, glycerol and slightly soluble in ethanol. Copper Sulfate, sometimes referred to as Blue Vitriol or Bluestone, is a readily available and economic source of copper.


Copper salts, including copper Sulfate Pentahydrate Fine Crystals, are regularly used to prevent the development of algae in potable water reservoirs. The salts are employed to control green slime and similar algal scums in farm ponds, rice fields, irrigation and drainage canals, rivers, lakes and swimming pools. Another well-known use for copper compounds is as a molluscicide for the control of slugs and snails.

Copper Sulfate Pentahydrate Fine Crystals, minus 30 mesh, control tadpole shrimp populations in flooded rice fields, as well as contain the spread of various fungal diseases. The fine crystals are also applied in sewer treatment to destroy roots.

Copper Sulfate Pentahydrate Fine Crystals serve as the main ingredient for manufacturing Bordeaux and Burgundy mixtures that are used as algaecides, both on the farm and to ensure safe water supplies. Bordeaux mixtures are also employed to adjust and maintain copper deficient soils to optimum levels.

OB’s Copper Sulfate Pentahydrate Crystals are registered with the Environmental Protection Agency for pesticide applications (EPA Reg. No.46923-4).


Old Bridge Minerals, Inc.
554 Waterworks Rd.
Old Bridge, New Jersey 08857

Typical Analysis

Common Name: Copper Sulfate Pentahydrate (CuSO4 – 5H20) Fine Crystal
Copper (Cu): 25.2% minimum
Cu Sulfate Pentahydrate: 99% minimum
Lead (Pb): 25 ppm maximum
Iron (Fe): 250 ppm maximum
Cadmium (Cd): 3 ppm maximum
Arsenic (As): 2 ppm maximum
Chromium (Cr): 25 ppm maximum
Antimony (Sb): 3 ppm maximum
Mesh – Fine Crystals: 100 – 30 mesh


ppm – parts per million