Tetraamminecopper(II) persulphate crystals.
| Other names
|Molar mass||359.82 g/mol|
|Appearance||Blue purple solid|
|Solubility||Insoluble in hydrocarbons|
|Safety data sheet||None|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Tetraamminecopper(II) persulfate or tetraamminecopper(II) persulphate (sometimes shortened to TACP) is a very weak primary explosive with a very short shelf life.
TACP will decompose violently when heated.
TACP is a blue-purple solid, poorly soluble in water.
TACP is a weak primary explosive, which explodes when dry. It has moderate sensitivity to shock, but heat will cause it to detonate.
If solutions of ammonium persulfate and tetraamminecopper(II) sulfate are cooled and then mixed, bright purple crystals of the TACPs will settle out. These should be filtered and dried as quickly as possible, as the solid will completely break down into a unknown green solid with no energetic properties in a few hours.
This decomposition may be a reaction with water but is more likely to be a loss of ammonia from the structure.
- Make primary explosive
TACP will decompose to release ammonia gas, which is an irritant.
Tetraamminecopper(II) persulphate will quickly break down and cannot be stored for long periods of time. It decomposes completely after 6 months.
Dispose it like every other copper ammonia complex.