Question

What is the difference in basicity between drain cleaner (pH 13) and ammonia (pH 11.9)?

Answer 1

Basicity would be 1.1, (13-11.9=1.1), this would make drain cleaner more basic than ammonia

Answer 2

#chemical drain cleaners, plungers, handheld, drain augers, air burst cleaners, and home remedy drain cleaners are typically applied to the problem of a clogged then electric drain cleaners sewers jetters or such mechanical devices are usually required

and Ammonia is a colorless highly irritating gas with a sharp suffocating odor. It dissolves easily in water to form ammonium hydroxide solution which can cause irritation and burns. Ammonia gas is easily compressed and forms a clear, colorless liquid under pressure.