It is a meaning for a hazard symbol
Yes it is extremely harmful and is an irritant so I wouldn't drink it.
It means to scrach at lot.
irritant, harmful, harmful to environment, poison, flammable, corrosive
Agitated is to cause or to move with violence or sudden force.Irritated is angered, provoked, or annoyed.
Because it contains a lot of harmful and irritant substances...
nitrogen acid is not corrosive, toxic, harmful or oxsidice it is irritant if you touch the liquid your hands will bet itchy instead of what the other chemicals do.
Harmful substances have the potential to cause serious damage or injury to individuals, such as toxicity or long-term health effects. Irritant substances, on the other hand, may cause temporary discomfort or irritation, but generally do not cause severe harm or long-lasting effects. An irritant can cause redness, itching, or inflammation of the skin, eyes, or respiratory system.
There is no difference it's just another way of showing or saying it.
A black 'X' symbol on an orange backgound is the symbol meaning irritant or harmful
There isn't a specific hazard symbol for acidic substances but many acids will be labelled as corrosive and, or harmful (and an irritant).
It could act as an irritant, so avoid contact. I am not able to find more details on its toxicity.
If it is in very dilute quantities then it shouldn't be. However copper sulphate is listed as a halmful substance and a possible irritant, so it is not something you want your livestock to be injesting