Factory Supply Powder Copper Sulfate CAS 7758-98-7

1. Control concentration: Use 0.2%-0.5% for leaf spraying to avoid burning. 2. Choose right time: Avoid spraying during seedling and flowering stages. 3. Reasonable combination: Mix with lime to form Bordeaux mixture, reducing irritation while enhancing fungicidal effect.

Skin contact: Remove contaminated clothing and rinse with running water for 10-15 minutes. Apply weak alkaline solution if needed. Eye contact: Rinse with saline or running water for 15 minutes without rubbing. Ingestion: Drink milk or egg white immediately. Do not induce vomiting. Seek medical attention in all severe cases.

It appears blue because Cu2+ combines with water molecules to form a complex that reflects blue light. For water testing: 1. Test for water presence: Anhydrous powder turns blue upon contact with water. 2. Detect sulfides: Reacts with sulfides to form black copper sulfide precipitate for qualitative determination.

Packaging uses double-layer bags (inner PE, outer PP or composite paper) in 25kg/50kg sizes, or 200kg sealed drums for high purity. It is non-dangerous goods transportable by road, rail, or sea. Air transport is available for small reagent-grade amounts. Packaging must be protected from rain and sunlight.

The Minimum Order Quantity is 1 kg. Accepted payment terms include LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.