Cow's milk is a very weak acid, with a pH just below the neutral value of 7. The pH of fresh milk ranges from 6.8 to 6.4. As milk goes sour, the pH drops and the acidity increases due to the buildup of lactic acid. More »

Common household substances that are acidic include coffee, battery acid, vinegar and lemon juice, while common household substances that are basic include drain cleaner, bleach, soap, ammonia, milk of magnesia and bakin... More »

Hydrogen peroxide is slightly acidic pH of 6.2 and is, therefore, similar to milk or rain water. That is the pH of hydrogen peroxide at full concentration; all hydrogen peroxide solutions sold commercially are diluted an... More »

HF has a pKa value of 3.17, which indicates that it is a weak acid. It is the chemical symbol for hydrogen fluoride, which, when added to an aqueous solution, becomes hydrofluoric acid. More »

Isopropyl alcohol is amphiprotic, meaning that it can act as both a weak acid and a weak base. Chemically, it can donate or accept a proton. This is a characteristic that is shared with water. More »

Hydrogen peroxide is slightly acidic pH of 6.2 and is, therefore, similar to milk or rain water. That is the pH of hydrogen peroxide at full concentration; all hydrogen peroxide solutions sold commercially are diluted an... More »

Fresh milk has a pH value that is typically between 6.5 and 6.7, making it slightly acidic. A pH greater than 6.7 indicates that the udders producing the milk are inflamed by pathogens, and milk with a pH lower than 6.5 ... More »