Why must the 10% bleach solution be replaced regularly?

Why must the 10% bleach solution be replaced regularly?

• A. Because it has a limited shelf life
• B. Because it stains surfaces
• C. Because it is expensive
• D. Because it is color-coded

Answer: (A)

Bleach loses its strength over time. The active chlorine in a 10% bleach solution gradually degrades when exposed to air, light, and heat, and it can also lose potency after being stored or diluted. As the solution ages, its disinfecting ability drops, so replacing it ensures you’re using a solution that will effectively kill germs. It’s not about staining, cost, or color coding—those factors don’t indicate whether the disinfectant remains potent. Always follow label guidance on shelf life and discard after the recommended period to maintain proper sanitation.

Bleach loses its strength over time. The active chlorine in a 10% bleach solution gradually degrades when exposed to air, light, and heat, and it can also lose potency after being stored or diluted. As the solution ages, its disinfecting ability drops, so replacing it ensures you’re using a solution that will effectively kill germs. It’s not about staining, cost, or color coding—those factors don’t indicate whether the disinfectant remains potent. Always follow label guidance on shelf life and discard after the recommended period to maintain proper sanitation.