Ammonia is a colorless alkaline solution used as a multi-purpose cleaner for grease, stains, and grime on hard surfaces. It works by breaking down organic compounds through its high pH (around 11-12), making it effective for tough jobs like oven cleaning or bathroom scrubbing.
Ammonia's high pH (11-12) makes it a strong base that reacts with acidic compounds, dissolving grease and grime. It also acts as a mild disinfectant against some bacteria and viruses, though it's less effective than bleach. The U.S. Environmental Protection Agency (EPA) notes that ammonia solutions can kill certain pathogens but require proper dilution to avoid skin irritation or damage to surfaces.
Ammonia is most common in:
Many assume ammonia is a disinfectant like bleach, but it's far weaker. The EPA registers ammonia as a sanitizer, not a broad-spectrum disinfectant. Unlike bleach, which kills bacteria and viruses through oxidation, ammonia relies on its alkalinity to dissolve organic matter.
Another myth is that ammonia can be mixed with bleach for extra cleaning power. This combination creates toxic chloramine gas, which can cause respiratory distress. Always use ammonia separately from bleach, vinegar, or rubbing alcohol.
When using ammonia, dilute it with water (typically 1 part ammonia to 10 parts water) and test on a small area first. Avoid porous materials like marble or wood, as its high pH can cause etching.
Vinegar (acetic acid) is great for descaling and cutting through mineral deposits, but it struggles with grease. Ammonia's alkalinity makes it superior for breaking down fatty acids in cooking residue. For example, a 1:10 ammonia-water solution will dissolve baked-on grease on an oven rack far better than vinegar.
I once cleaned a heavily greased stove with both. The vinegar solution barely made a dent, while the diluted ammonia removed nearly all residue with minimal scrubbing. That's when I learned the importance of matching the cleaner to the job.