Cuprous Oxide

other name: copper oxide (Cu2O)

CAS No.: [1317-39-1]

Molecular Formula: Cu2O

Cuprous oxide, a copper+ ion compound, is considered the most active form of copper. Its solubility is low, its retention high and protection is excellent, even in adverse weather conditions.

Cuprous oxide is easy to disperse, have good  suspension, and have superior sticking properties.

Cuprous oxide is used for fungicides control fungal and bacterial diseases on a variety of crops: Almonds, Mangoes, Apricots, Avocado, Citrus, Conifers, Coffee, Cocoa, Grapes, Kiwi Fruit,Apples, Nectarines, Olives, Stone Fruits, Tomatoes, Walnuts


APPLICATIONS cuprous oxide
Copper-II ion (Cu++) is taken up by the spores during germination and accumulates until a sufficiently high concentration is achieved to kill the spore cell; the activity is limited to the prevention of spore germination.

Mode of action
Foliar fungicide with preventative action. Deposits must be on the crop before fungal spores begin to germinate.

Control of blights, downy mildews, rusts, and leaf spot diseases in a wide range of crops, including potatoes, tomatoes, vines, hops, olives, pome fruit, stone fruit, citrus fruit, beetroot, sugar beet, celery, carrots, coffee, cocoa, tea, bananas, etc. Applied at 0.75-1 kg/ha. Phytotoxicity Non-phytotoxic when used as directed, except to brassicas and copper-sensitive plants. Russetting is possible with some varieties of fruit.

Formulation types WG; WP.

Our Technical Material (TC) have the specification as per standard HG/T 2961-2010

Items Specification
Appearance brown to dark ded powder
Total reducting powder as cuprous oxide 98% min.
Metallic copper 1.0% min.
Cuprous Oxide 97% min.
Total copper, Cu 87% min.
Chloride (as Cl - ) 0.5 % max.
Sulphate (as SO42-) 0.5 % max.
Acetone Insoluble matter0.5% max.
Water 0.5% max.
Coarse Particles 0.3% max.
Coarse Particles Insoluble in Nitric Acid 0.1% max.
*Metals Other than Copper upon requested ..

GHS complaint Safety Data Sheet (SDS) for commercial product of Cuprous Oxide is available uopn requested.