Copper Oxychloride Fungicide

Product Identification

• Product Name: Copper Oxychloride
• Common Name: Wangtong (Chinese)
• Chemical Name: Basic Copper Chloride; Copper Oxychloride
• CAS No.: 1332-40-7 / 1332-65-6
• Chemical Group: Inorganic Copper Fungicide
• Formulation: Wettable Powder (WP) / Suspension Concentrate (SC)
• Active Ingredient Content: 30% / 50% Copper Oxychloride
• Toxicity Class: Low toxicity
• Registration No.: [Fill in your registration number]

Product Performance

Copper oxychloride is a broad‑spectrum, protective inorganic copper fungicide and bactericide. After application, it adheres tightly to plant surfaces to form a stable protective film, resistant to rain wash. Under suitable temperature and humidity, it slowly releases copper ions, which bind with pathogenic proteins, denature proteases, inhibit spore germination and mycelial growth, and prevent infection by fungi and bacteria.

It is widely used to control bacterial and fungal diseases on citrus, cucurbits, tobacco, rice, potatoes, apples, grapes and other crops.

Mode of Action

• Action Type: Protective fungicide & bactericide
• Mechanism: Releases copper ions on plant surfaces to disrupt pathogen cell metabolism, denature proteins, and inhibit spore germination and mycelial development.
• Rainfastness: Good; forms a durable protective layer.

Directions for Use

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Application Tips

• Begin spraying at the early stage of disease occurrence or before infection.
• Ensure full coverage of leaves, stems and fruits.
• Do not apply when rain is expected within 1 hour.
• Interval between applications: 7–10 days; 2–3 times per growing season.

Compatibility

• Do NOT mix with: Lime sulfur, resin formulations, mineral oils, strong acids or strong alkalis, thiophanate‑methyl, carbendazim.
• Compatible with most non‑copper, non‑sulfur fungicides and insecticides; test compatibility before tank mixing.

Precautionary Statements

Hazards

• Slightly irritating to eyes and skin.
• Harmful if swallowed.
• Toxic to fish, aquatic organisms, bees and silkworms.

Protection

• Wear protective clothing, goggles, chemical‑resistant gloves and masks during handling and application.
• Do not eat, drink or smoke while applying.
• Wash hands, face and exposed skin thoroughly after use.

Restrictions

• Keep away from water sources, ponds, beehives and silkworm rearing areas.
• Do not contaminate irrigation or drinking water.
• Do not apply during flowering period to protect pollinators.
• Safe harvest interval: Follow local regulations; generally ≥7–14 days.

First Aid

• Skin contact: Remove contaminated clothing; rinse with plenty of running water for at least 15 minutes.
• Eye contact: Rinse gently with running water for 15–20 minutes; seek medical attention.
• Inhalation: Move to fresh air; keep warm and rested; seek medical advice if unwell.
• Ingestion: Do NOT induce vomiting. Rinse mouth; drink plenty of water; seek medical treatment immediately.

Storage and Transportation

• Store in a cool, dry, ventilated area, away from direct sunlight, heat, fire and food.
• Keep sealed and out of reach of children, pets and livestock.
• Transport separately from food, feed, seeds and cosmetics.
• Avoid leakage, inversion, rain and high temperature during transport.

Waste Disposal

• Do not dump empty containers or leftover solution into water bodies.
• Triple‑rinse containers; puncture and bury or dispose as hazardous waste.
• Follow local environmental protection regulations for disposal.

Notes

• Do not increase concentration arbitrarily to avoid phytotoxicity.
• Not suitable for sensitive crops under high temperature (>35°C) or frost conditions.
• Rotate with non‑copper fungicides to reduce resistance risk.
• Comply with local pesticide regulations and maximum residue limits (MRLs).

Manufacturer Information

• Manufacturer: [Fill in name]
• Address: [Fill in address]
• Contact: [Fill in phone/email]
• Date of Issue: [Fill in date]