Which solution is used for chemical disinfection of blood spills?

While isopropyl alcohol is an effective disinfectant for small surfaces and equipment, it is not the best choice for large blood spills. It may not effectively penetrate thick organic material and can evaporate quickly, reducing its contact time necessary for effective disinfection.

Hydrogen peroxide does possess antimicrobial properties and can be used for disinfection; however, it is less effective than bleach for blood spills due to its lower concentration of active ingredients. Additionally, it can produce harmful byproducts when reacting with organic matter, which may not be ideal for all situations.

Formaldehyde is primarily used as a preservative and disinfectant in specific applications but is not typically recommended for blood spills due to its toxicity and potential health risks. Its use is restricted due to concerns about safety and environmental impact, making it less practical compared to bleach.