General
Cathode copper is electrolytic copper.
The thick plate of crude copper (containing 99% copper) was made in advance as the anode, the pure copper was made into thin sheets as the cathode, and the mixed solution of sulfuric acid (H2SO4) and copper sulfate (CuSO4) was used as the electrolyte.After electrification, copper is dissolved into copper ions (Cu) from the anode and moves to the cathode. After reaching the cathode, electrons are obtained and pure copper (also known as electrolytic copper) is precipitated at the cathode.Impurities such as iron and zinc, which are more active than copper, are dissolved with copper into ions (Zn and Fe).Compared with copper ions, these ions are not easy to precipitate, so as long as the potential difference is properly adjusted during electrolysis, the precipitation of these ions on the anode can be avoided.Less active impurities such as gold and silver are deposited at the bottom of the electrolytic cell.The copper plate produced in this way, called "electrolytic copper", is of very high quality and can be used to make electrical products.The anode slime deposited at the bottom of the electrolytic cell is called "anode slime", which is rich in gold and silver and is very valuable.
【File Download】Members only: you must log in to the member to download; other, you can download directly, thank you!
| Filename | Download |
|---|
No data.
[Shipping Description]
Within two days after receipt of the order (excluding the holidays), the Commissioner will confirm the order with your Union or SMS.
This product is non-DIY goods, 4 floor below the floor fee, 5 floor above each additional 200 yuan, no recovery services.
Delivery area: Taiwan Island, the outer island does not receive a single. Due to special restrictions (mountain, township, town, village), the stairs are too small to move upstairs and other factors, leading to the delivery, the company has the right to ship.
large furniture distribution is not easy, delivery time to 7 to 14 working days, before delivery logistics company will confirm with you delivery time.
Hualien area (except Hualien City), Taitung area, Pingtung (except Pingtung City) and some remote areas (mountain) area, you need to receive additional freight, travel less delivery of about 10 to 20 Working days, remote areas determined by the logistics company. (You can order the order, follow up by the commissioner and your offer)
To protect the work of the logistics staff, the seller does not provide hanging service, if the crane or other hanging way lifting, the cost will be paid by the buyer.
because of the large furniture assembly, distribution problems, not the general arrival of goods quickly, can not specify a specific time delivery, the driver will be informed before the arrival of the day before you so that you do not have all day at home and other goods, so as not to waste you The precious time.
no recycling furniture service, for recycling furniture can contact the local cleaning team to recover, free shipping clearance line 0800-085-717
If you have any questions after receiving the goods, please contact us within 4 working days from the date of receipt of the goods and return it within seven days from the date of receipt of the goods in order to enjoy the After service.
If you do not return the status of this order, you purchase the goods invoice will receive the goods from seven to ten working days, please pay attention to the receipt box.
[post-purchase considerations]
The company is working from Monday to Friday 10: 00-18: 00, national holidays and other non-working hours to suspend online customer service, we still attach great importance to your valuable advice and any advice, we recommend that you can use the consultation form We will reply to you as soon as possible during working hours.
wake you, after each order is established, you can not manually change the details of the goods or merge orders, please be sure to confirm the order before the order details and order amount.
If you have any questions after receiving the goods, please contact us within 4 working days from the date of receipt of the goods and return it within seven days from the date of receipt of the goods in order to enjoy the After service.
If you do not return the status of this order, you purchase the goods invoice will receive the goods from seven to ten working days, please pay attention to the receipt box.
If you have any questions after receiving the goods, please contact us within 4 working days from the date of receipt of the goods and return it within seven days from the date of receipt of the goods in order to enjoy the After service.
If you do not return the status of this order, you purchase the goods invoice will receive the goods from seven to ten working days, please pay attention to the receipt box.