Are acids toxic

No only strong acid are toxic normal acids like lemon are not toxic

No all acids are no toxic only strong acid are toxic

 The international transport pictogram for corrosives. EtymologyEdit The word corrosive is derived from the Latin verb corrodere, which means to gnaw, indicating how these substances seem to "gnaw" their way through flesh or other materials. Chemical termsEdit The word corrosive refers to any chemical that will dissolve the structure of an object. They can be acids, oxidizers, or bases. When they come in contact with a surface, the surface deteriorates. The deterioration can happen in minutes, e.g. concentrated hydrochloric acid spilled on skin; or slowly over days or years, e.g. the rusting of iron in a bridge. Sometimes the word caustic is used as a synonym for corrosive when referring to the effect on living tissues. At low concentrations, a corrosive substance is called an irritant, and its effect on living tissue is called irritation. At high concentrations, a corrosive substance causes a chemical burn, a distinct type of tissue damage. Corrosives are different from poisons in that corrosives are immediately dangerous to the tissues they contact, whereas poisons may have systemic toxic effects that require time to become evident. Colloquially, corrosives may be called poisons but the concepts are technically distinct. However, there is nothing which precludes a corrosive from being a poison; there are substances that are both corrosives and poisons. Corrosion of non-living surfaces such as metals is a distinct process. For example, a water-air electrochemical cell corrodes iron to rust, corrodes copper to patina, and corrodes copper, silver, and other metals to tarnish. In the international system of symbolic chemical labels, both rapid corrosion of metals and chemical corrosion of skin qualify for the corrosive symbol. Effects on living tissue Common types Personal protective equipment Uses References

Not all

 The international transport pictogram for corrosives. EtymologyEdit The word corrosive is derived from the Latin verb corrodere, which means to gnaw, indicating how these substances seem to "gnaw" their way through flesh or other materials. Chemical termsEdit The word corrosive refers to any chemical that will dissolve the structure of an object. They can be acids, oxidizers, or bases. When they come in contact with a surface, the surface deteriorates. The deterioration can happen in minutes, e.g. concentrated hydrochloric acid spilled on skin; or slowly over days or years, e.g. the rusting of iron in a bridge. Sometimes the word caustic is used as a synonym for corrosive when referring to the effect on living tissues. At low concentrations, a corrosive substance is called an irritant, and its effect on living tissue is called irritation. At high concentrations, a corrosive substance causes a chemical burn, a distinct type of tissue damage. Corrosives are different from poisons in that corrosives are immediately dangerous to the tissues they contact, whereas poisons may have systemic toxic effects that require time to become evident. Colloquially, corrosives may be called poisons but the concepts are technically distinct. However, there is nothing which precludes a corrosive from being a poison; there are substances that are both corrosives and poisons. Corrosion of non-living surfaces such as metals is a distinct process. For example, a water-air electrochemical cell corrodes iron to rust, corrodes copper to patina, and corrodes copper, silver, and other metals to tarnish. In the international system of symbolic chemical labels, both rapid corrosion of metals and chemical corrosion of skin qualify for the corrosive symbol. Effects on living tissue Common types Personal protective equipment Uses References