Product Description:
UM4 R03P AAA Battery For Shaver
Chemical reaction:
In a zinc–manganese dioxide dry battery, the zinc
can is the negative terminal through which the electric current flows into the device. The zinc is oxidised according to the following half-equation.
Zn(s) → Zn2+(aq) + 2 e− [E° = -0.7626 volts]
The positive terminal is a mixture of chemicals – usually a mixture of manganese dioxide powder, carbon and an electrolyte to increase the electrical conductivity. A carbon electrode rod also is placed inside the middle of the battery, connecting the two metal-capped ends of opposite charge and serving as the positive terminal.The reaction is as follows:
2MnO2(s) + 2 e− + 2NH4Cl(aq) → Mn2O3(s) + 2NH3(aq) + H2O(aq) + 2 Cl− [e° ≈ +.5 v]
and the Cl− combines with the Zn2+.
There are other possible side-reactions, but the overall reaction in a zinc–manganese dioxide battery can be represented as:
Zn(s) + 2MnO2(s) + 2NH4Cl(aq) → Mn2O3(s) + Zn(NH3)2Cl2 (aq) + H2O(l)
Company Contact:
Contact Name: Jon Feng
Company Name: Chongqing Golden Partner Imp. & Exp. Co., Ltd.
Email:
Tel: 0086-23-67869643
Fax: 8623677575219
Street Address: 21-15, No. 16,
Jianxinbei Road, Jiangbei District,
Chongqing, China (mainland)
Chongqing, Chongqing 400020
China
Website:
http://www.goldenpartner.cn/
Member name: goldenpartner
Country:
China
Member Since: 08 June 2013
Total Leads:
147 goldenpartner Import Export Business Leads
Business focus: Zinc Manganese Battery, Alkaline Battery, Storage Battery, Dry Battery
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