Some thoughts on special solvents and acid and alkali resistance
[Special solvents ]
(1) Special solvents generally refer to potions used in car beauty, such as tar remover. The solvents in this remover are usually refined from petroleum.
(2) Petroleum solvents can be divided into three categories according to their main components:
(2.1) Aliphatic solvents, such as petroleum ether, n-hexane, dry cleaning oil, stain remover oil, heptane, pentane, etc.
(2.2) Aromatic hydrocarbon solvents, such as benzene, toluene, xylene, paint solvents, rubber solvents, etc.
(2.3) naphthenic solvents such as environmental protection dry cleaning oil, etc.
(3) Of course, there are more types of solvents extracted from petroleum, so we basically focus on the automotive beauty industry for the introduction. Other industries may also use different types of solvents, so we can only explain them in general.
(4) Because the solvent is relatively complex and has a certain degree of corrosion to rubber and plastic, all trigger sprayers will face the situation of reduced service life in use. The difference is that the use of better materials can prolong the service life of the product, but it does not mean that it will not be damaged.
[Oils]
(1) As for the substance of oil, we can divide it into two categories, one is an essential oil and the other is edible oil. Because some industries use sprayers to spray these two oils.
(2) Then because the oil itself has a high or low viscosity, this will affect the use of the sprayer. And there are some oils that also produce fat, which will also clog the pipes of the sprayer after a period of time.
[Strong acids and alkalis]
(1) Generally speaking, the composition and knowledge of the solvent itself are relatively complicated. So some customers will make a distinction by pH value.
(2) And most solvents or chemical liquids can be judged numerically by using the pH value. For example, hydrochloric acid has a pH of about 2, which is a strong acid. Then the pH value of the bleach is slightly around 12, which is a strong alkali.
(3) So we mentioned that strong acids and alkalis will affect the life of the trigger sprayer, because when the pH is greater than 12 or less than 2, such contents usually have strong chemical reactions and corrosiveness.