Safety of Alkaline Batteries Alkaline batteries should never be burned or exposed to an open flame. All dead alkaline batteries will ultimately leak if left alone for a long enough period of time. Batteries emit potassium hydroxide, a powerful basic that causes skin, eye, and lung irritation. The chemicals within these batteries can also cause damage to furniture, carpeting, and other objects they come in contact with. However, this does not mean that all batteries are equal with respect to danger. Modern batteries are made from different materials than their early 20th century counterparts and thus may not leak as easily. However, even modern batteries can leak if they are damaged on the inside. These problems may not become evident until after an incident has occurred. It is best to keep batteries away from children and allow them to drain completely before disposing of them.
Bath oil and other petroleum products are acidic. They can be used to clean batteries prior to putting them in storage or when you have limited access to water. Be sure to use a neutral soap and rinse well afterward. Batteries should always be stored where children cannot reach them and should not be left lying on their sides or exposed to heat or sunlight. Dispose of batteries properly; either take them to a recycling center or use the paper bag provided for trash. Do not throw them in the trash. They can leak damaging chemicals into the environment.
Alkaline batteries are prone to leaking potassium hydroxide, a caustic agent that can cause respiratory, eye, and skin irritations. You can reduce the risks by not using different types of batteries in the same device and replacing all of the batteries at the same time.
Battery leakage can also lead to electrical shocks and fire. Always follow the instructions on the box for disposal of used batteries.
A battery's electrolyte is corrosive, and it may burn skin or eyes, chew holes in clothing, and even etch a concrete floor. Flammable gases: Batteries release flammable hydrogen gas. If allowed to gather in a small space, it easily ignites and can create a fire or explosion. Tetrachloroethylene (TCE) and other chlorinated hydrocarbons found in some cleaning products can also be toxic. Keep chemicals away from open flames.
Batteries contain acids that can eat through metal, plastic, and paper. Acids also destroy the insulation around electrical wiring, causing short circuits and exposing live wires. These hazards can cause fires when batteries are not treated properly after use or are stored in a way that allows them to leak or spill their content.
Always follow instructions for disposal of batteries (see "What should I do with old batteries?" below). Never pour acid into toilets or sewers. It causes severe damage to plumbing materials.
Acid burns contact with skin, destroying flesh down to the bone. The gas can asphyxiate a person by filling a room with carbon dioxide. This danger is particularly acute when working with batteries containing sulfuric or nitric acids.
Battery cables and terminals are also susceptible to corrosion from battery acid. Corrosion can lead to leaks and expose live wires, increasing the risk of fire.
You may see an example of this below to get a better idea. Potassium hydroxide is found in alkaline batteries, which are similar to the power cells found in your television remote control. A burning feeling can be caused by a chemical that can burn and irritate the skin. When potassium hydroxide comes into contact with water, it forms potassium hypochlorite, also known as saltwater.
Alkaline batteries are made up of three main components: a zinc electrode, a potassium hydroxide solution (alkali), and a plastic casing. The zinc electrode is the negative terminal, and it must be kept free from any moisture or it will react with the potassium hydroxide solution to form zinc oxide instead. This reaction produces gas which can cause the battery to leak, so make sure there are no cracks in the case around the zinc electrode.
When you use up the energy in an alkaline battery, it cannot be restored. The only way to recharge them is by replacing the used-up electrodes with new ones. This means that they have a limited life span and should be replaced regularly.
It is important to dispose of alkaline batteries properly because they can cause serious damage to humans if ingested. For example, children can eat away at metal containers and suffer the consequences later in life.