copper oxide(Cu2O); copper(I) oxide; dicopper oxide

Dicopper oxide

Cu₂O

Form Red-brown powder.

Melting point 1235℃.

Solubility Practically insoluble in water and organic solvents.

Soluble in dilute mineral acids and in aqueous ammonia and its salts.

Oral Acute oral LD50 for rats 1500 mg/kg.

Skin and eye Acute percutaneous LD50 for rats >2000 mg/kg.

Moderate to minimal irritation to skin.

Inhalation LC50 for rats 5.0 mg/l air.

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.