There are several chemicals that, when combined in certain ways, can result in dangerous reactions or produce hazardous compounds. Here are a few examples:
Bleach (sodium hypochlorite) and ammonia: When mixed together, these chemicals can react to form toxic chloramine vapors, which can cause respiratory distress, eye irritation, and throat burns. It is important to avoid mixing bleach and ammonia-containing cleaners.
Hydrogen peroxide and vinegar: Mixing hydrogen peroxide (H2O2) and vinegar (acetic acid) can create peracetic acid, a corrosive substance. This mixture can cause irritation to the respiratory system, eyes, and skin. It is best to use these chemicals separately.
Bleach and acidic cleaners: Combining bleach with acidic cleaners such as those containing vinegar, lemon juice, or citric acid can lead to the release of chlorine gas, which is highly toxic and can cause severe respiratory issues.
Hydrogen peroxide and flammable substances: Hydrogen peroxide is a strong oxidizing agent and can react violently or ignite flammable materials, such as gasoline, alcohol, or other organic solvents. It is crucial to keep hydrogen peroxide away from flammable substances.
Chlorine-based pool chemicals and acids: Mixing chlorine-based pool chemicals (such as chlorine tablets or granules) with strong acids, like muriatic acid or sulfuric acid, can result in the release of toxic gases, including chlorine gas. This can be extremely hazardous, leading to respiratory distress and other health issues.
Ammonia and certain metals: Mixing ammonia with certain metals, such as mercury, silver, or gold, can form explosive compounds or toxic metal amine complexes. It is important to avoid mixing ammonia with these metals or their compounds.
Remember, this is not an exhaustive list, and there are many other combinations that can be dangerous. Always read and follow the instructions and warnings on chemical labels, use chemicals in well-ventilated areas, and store them properly to prevent accidental mixing or reactions. If you are uncertain about the compatibility of specific chemicals, consult safety data sheets (SDS) or seek guidance from experts or professionals in the field.