Difference between revisions of "Ammonium carnallite"
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° G.Wheeler, M.Wypyski, "An Unusual Efflorescence on Greek Ceramics" ''Studies in Conservation'', 38:55-62, 1993. | ° G.Wheeler, M.Wypyski, "An Unusual Efflorescence on Greek Ceramics" ''Studies in Conservation'', 38:55-62, 1993. | ||
| − | == | + | == Sources Checked for Data in Record == |
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 562 | * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 562 | ||
Revision as of 12:14, 29 April 2016
Description
A deliquescent, white salt composed of ammonium magnesium chloride. Ammonium carnallite has been found as an efflorescence on three ceramic objects (Wheeler and Wypyski 1993). It is theorized that the salt was formed following a cleaning procedure in which Hydrochloric acid was used to remove carbonaceous encrustations followed by an Ammonium hydroxide rinse for neutralization.
Synonyms and Related Terms
Ammonium-Karnallit (Deut.)
| Composition | NH4MgCl3-6H2O |
|---|---|
| Molecular Weight | mol. wt. = 148.70 |
Additional Information
° G.Wheeler, M.Wypyski, "An Unusual Efflorescence on Greek Ceramics" Studies in Conservation, 38:55-62, 1993.
Sources Checked for Data in Record
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 562