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Reactive Group Datasheet

Alkynes, with No Acetylenic Hydrogen

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 about reactivity predictions...

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 8 chemical datasheets assigned to this reactive group.


May be highly flammable gases (explosive).
The carbon-carbon triple bond provides a site in which addition across this triple bond may occur with the release of considerable energy in the form of heat. These compounds react with strong reducing agents such as hydrides, strong acids, halogenating agents, inorganic cyanide salts, sulfides, and azo compounds.
The gases are not toxic per se, but can act to exclude oxygen in breathing zone during an incident.
Other Characteristics
Alkynes (no attached hydrogen) have the formula R-CC-R, with R representing any alkyl group such as methyl, ethyl, etc. or halide attached to the carbon. Use of many of these compounds are important in the synthesis of other chemicals. The lack of a hydrogen atom adjacent to the triple bond makes these alkynes much less reactive than alkynes with an attached hydrogen atom (Group 63).
1,4-butynediol, crotonylene, dichloroacetylene.

Reactivity Documentation

Use the links below to find out how this reactive group interacts with any of the reactive groups in the database.

The predicted hazards and gas byproducts for each reactive group pair will be displayed, as well as documentation and references that were used to make the reactivity predictions.

Mix Alkynes, with No Acetylenic Hydrogen with: