Add to MyChemicals Print Friendly Page
Reactive Group Datasheet

Acids, Strong Non-oxidizing

What are reactive groups?

Reactive groups are categories of chemicals that typically react in similar ways because they are similar in their chemical structure. Each substance with a chemical datasheet has been assigned to one or more reactive groups, and CAMEO Chemicals uses the reactive group assignments to make its reactivity predictions. More Info...

If you can't find a chemical in the database--but you know what reactive group it belongs in--you can add the reactive group to MyChemicals instead in order to see the reactivity predictions.

There are 18 chemical datasheets assigned to this reactive group.

Description

Flammability
Compounds in this group are generally nonflammable.
Reactivity
Strong, non-oxidizing acids are generally soluble in water with the release of hydrogen ions. The resulting solutions have pHs of 1 or close to it. Acids neutralize chemical bases (for example: amines and inorganic hydroxides) to form salts. Neutralization occurs as the base accepts hydrogen ions that the acid donates. Neutralization can generate dangerously large amounts of heat in small spaces. The dissolution of acids in water or the dilution of their concentrated solutions with additional water may generate significant heat; the addition of water often generates sufficient heat in the small region of mixing to cause some of the water to boil explosively. The resulting "bumping" spatters the acid. These materials react with active metals, including such structural metals as aluminum and iron, to release hydrogen, a flammable gas. They can initiate the polymerization of certain classes of organic compounds. They react with cyanide compounds to release gaseous hydrogen cyanide. They often generate flammable and/or toxic gases in contact with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and strong reducing agents. Additional gas-generating reactions occur with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), and even carbonates: the carbon dioxide gas from the last is non-toxic but the heat and spattering from a rapid reaction can be troublesome. Acids often catalyze (increase the rate of) chemical reactions.
Toxicity
Corrosive to tissue. Acid fumes irritate sensitive tissues (such as the eyes and respiratory system) especially severely.
Other Characteristics
Acids have a sour taste; they turn blue litmus red. Strong acids completely dissociate in water to H+ ions and extremely weak conjugate base anions. Non-oxidizing acids give anions that do not act as oxidants. They possess a pKa value less than -2, or a pH value less than 2.
Examples
Hydrochloric acid, hydroiodic acid, hydrobromic acid.

Reactivity Documentation

Click on the links below to see how this reactive group is predicted to react when it is mixed with one of the 64 reactive groups. A variety of documentation about that reactive group pair will be displayed, including predicted hazards, predicted gas byproducts, and background materials and references used to make the predictions.

Mix Acids, Strong Non-oxidizing with: