Оксихлорид меди

Description

Copper oxychloride (copper chloride basic, copper chloride oxide hydrate) is a basic copper salt, a product of incomplete hydrolysis of copper(II) chloride, a water-insoluble blue-green powder. Belongs to the class of inorganic basic copper salts. One of the oldest copper-containing fungicides used in plant protection along with Bordeaux mixture and copper hydroxide.

Basic Attributes

• CAS No: 1332-40-7
• English name: Copper oxychloride
• Molecular weight: 427.13400
• Exact weight: 423.67300
• EU number: 603-724-0
• HS code: 2827410000
• PSA: 121.38000
• XLogP3: 0.30820
• Synonyms: cupravit, cupricol, oxycob, midzyan, bordeaux, funguran, cuprozan, vitigran, cuprox, cobox and dozens of other trade names; related CAS numbers: 1344-71-4, 8070-45-9, 11078-26-5, 11111-25-4, 12622-74-1, 12674-28-1, 12770-96-6, 37294-24-9, 51366-17-7, 54175-26-7, 55468-24-1, 74315-47-2, 12778-34-6

Physico-chemical characteristics

• Melting point: 140 °C (with loss of 3 molecules of water of crystallization)
• Boiling point: 100 °C at 760 mmHg. Art.

Safety Information

• Packing level: I
• Hazard category: 4.3
• Transport codes: UN 3399, class 4.3, page 2
• WGK Germany: 1
• Hazard class code: R22, R34
• Safety instructions: S26, S36/37/39, S45
• Tags: C (caustic)

Substance class and mechanism of action

Basic (oxychloride) copper(II) salt is a multi-contact inorganic fungicide and protective bactericide. Copper ions, gradually released from the surface of the drug particles when moistened, denature (coagulate) the proteins of the cells of pathogenic fungi and bacteria, disrupting the functioning of the enzyme systems of spores and cell membranes. The action is purely contact, preventive: the drug creates a protective layer on the surface of the plant that prevents the germination of spores, but does not penetrate into the tissues and does not have a therapeutic (eradicating) effect on an already developed infection.

Scope of application

The active ingredient of fungicides and bactericides for plant protection - fruit, vegetable, vineyards, potatoes, tomatoes, grains and ornamental crops against mildew, scab, late blight, bacteriosis and other fungal and bacterial diseases. A classic analogue of Bordeaux mixture with a more stable composition and dosage. Available in the form of a wettable powder and an aqueous suspension (suspension concentrate) for spraying.

Storage and transportation

The substance is corrosive (label C, R34), during transportation it belongs to hazard category 4.3 (substances that emit flammable gases in contact with water), UN code 3399, packing group I - the highest degree of danger. Store in a dry, tightly closed container, away from sources of water and moisture. Wear protective gloves, glasses and clothing, avoid inhaling dust and contact with skin and mucous membranes.