| content | |||||||||||||||||||||||||||||||||||||||||
| Ammonium persulfate | |
|---|---|
 |
|
| Other names | Ammonium Peroxydisulfate |
| Identifiers | |
| CAS number | [7727-54-0] |
| Properties | |
| Molecular formula | (NH4)2S2O8 |
| Molar mass | 228.18 g/mol |
| Appearance | white crystals |
| Melting point |
120 °C (393 K) (decomposes) |
| Solubility in water | 80 g/100 ml (25 °C) |
| Hazards | |
| MSDS | http://www.jtbaker.com/msds/englishhtml/a6096.htm |
| Related compounds | |
| Other cations | Sodium persulfate Potassium persulfate |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
|
Ammonium persulfate (NH4)2S2O8 is a strong oxidizing agent. It is very soluble in cold water, a large fall of temperature accompanying solution. It is a very strong oxidizing agent and a radical initiator. It is used to etch copper on printed circuit boards as an alternative to ferric chloride solution.[1] It is also used along with tetramethylethylenediamine to catalyze the polymerization of acrylamide in making a polyacrylamide gel.
Ammonium persulfate was prepared by H. Marshall by the method used for the preparation of potassium persulfate — by the electrolysis of a solution of ammonium sulfate and sulfuric acid.[2]
Ammonium persulfate is the main component of Nochromix. On dissolving in sulfuric acid, it is used to clean laboratory glassware as a metal-free alternative to chromic acid baths.[3]
References
- ^ "Ammonium Persulphate: Copper Etchant". MG Chemicals.
- ^ Hugh Marshall (1891). "LXXIV. Contributions from the Chemical Laboratory of the University of Edinburgh. No. V. The persulphates". J. Chem. Soc., Trans. 59: 771. doi:.
- ^ "Nochromix". Sigma-Aldrich. Retrieved on 2008-03-01.
|
|||||
 |
This inorganic compound-related article is a stub. You can help Wikipedia by expanding it. |
