Difference between revisions of "Cuprammonium hydroxide"
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== Description == | == Description == | ||
| − | Copper dissolved in concentrated ammonia | + | Copper hydroxide dissolved in concentrated ammonia results in the formation of a copper ammonia complex copper. Discovered in 1857 by E. Schweizer, the dark blue solution is capable of dissolving cellulose. cotton, silk and linen. It has been used as a reagent test solution for wool, since wool does not dissolve. But more commonly, the reagent is used to dissolve cellulose. When a solution of cellulose in cuprammonium hydroxide is diluted with water or treated with dilute sulphuric acid, the cellulose is regenerated or reprecipitated. By using a spinnerette, filaments of this regenerated cellulose can be produced. See [[cuprammonium rayon]]. |
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== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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* NIH: [https://pubchem.ncbi.nlm.nih.gov/compound/Cuprammonium-hydroxide-solution Compound information] | * NIH: [https://pubchem.ncbi.nlm.nih.gov/compound/Cuprammonium-hydroxide-solution Compound information] | ||
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==Resources and Citations== | ==Resources and Citations== | ||
* Textile Library: [http://textilelibrary.weebly.com/cuprammonium-rayon-mfg-process.html#:~:text=Cuprammonium%20hydroxide%20solution%20is%20a%20solvent%20for%20cellulose.,filaments%20of%20this%20regenerated%20cellulose%20can%20be%20produced. Cuprammonium rayon] | * Textile Library: [http://textilelibrary.weebly.com/cuprammonium-rayon-mfg-process.html#:~:text=Cuprammonium%20hydroxide%20solution%20is%20a%20solvent%20for%20cellulose.,filaments%20of%20this%20regenerated%20cellulose%20can%20be%20produced. Cuprammonium rayon] | ||
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 12:06, 14 July 2022
Description
Copper hydroxide dissolved in concentrated ammonia results in the formation of a copper ammonia complex copper. Discovered in 1857 by E. Schweizer, the dark blue solution is capable of dissolving cellulose. cotton, silk and linen. It has been used as a reagent test solution for wool, since wool does not dissolve. But more commonly, the reagent is used to dissolve cellulose. When a solution of cellulose in cuprammonium hydroxide is diluted with water or treated with dilute sulphuric acid, the cellulose is regenerated or reprecipitated. By using a spinnerette, filaments of this regenerated cellulose can be produced. See Cuprammonium rayon.
Synonyms and Related Terms
cupram; cuam; Schweitzer reagent; Schweizer's reagent
Risks
- NIH: Compound information
Resources and Citations
- Textile Library: Cuprammonium rayon