What does NI3 decompose into?

The NI3 is then filtered out. When dry, the compound is so unstable that the slightest contact causes it to decompose into nitrogen gas and iodine vapor, producing a very loud “snap” and a cloud of purple iodine vapor.

How is NI3 formed?

Traditionally, nitrogen triiodide is made by reacting iodine with aqueous ammonia solution. That does not produce NI3, an ammonia complex is obtained instead. This is either [NI3.

What is the name of NI3?

Nitrogen triiodide is the inorganic compound with the formula NI3. It is an extremely sensitive contact explosive.

Does iodine explode?

491-102. Antimony with iodine, the reaction produces heat, which can cause flame or even an explosion if the quantities are great enough. Fire Protection Guide to Hazardous Materials.

How does decomposition of Ni 3 solid occur?

The decomposition is touch-sensitive and will be activated by the slightest vibration. To activate the decomposition, tickle the dry NI 3 solid with a feather attached to a long stick. A meter stick is a good choice (don’t use anything shorter). The decomposition occurs according to this reaction:

How does the decomposition of nitrogen triiodide take place?

The decomposition of NI 3 proceeds as follows to give nitrogen gas and iodine: 2 NI 3 (s) → N 2 (g) + 3 I 2 (g) (−290 kJ/mol) However, the dry material is a contact explosive, decomposing approximately as follows: [4]

What makes a Ni 3 triiodide unstable?

How it works: NI 3 is highly unstable because of the size difference between the nitrogen and iodine atoms. There is not enough room around the central nitrogen to keep the iodine atoms stable. The bonds between the nuclei are under stress and therefore weakened.

What happens when Ni 3 is filtered out?

The NI 3 is then filtered out. When dry, the compound is so unstable that the slightest contact causes it to decompose into nitrogen gas and iodine vapor, producing a very loud “snap” and a cloud of purple iodine vapor. Only a few materials are required for this project. Solid iodine and a concentrated ammonia solution are the two key ingredients.