metahydrate sodium carbonate
metahydrate sodium carbonate[‚med·ə′hī‚drāt ¦sōd·ē·əm ′kär·bə‚nāt]
Na2CO3·H2O Water-soluble, white crystals with an alkaline taste, loses water at 109°C, melts at 851°C; used in medicine, photography, and water pH control, and as a food additive. Also known as crystal carbonate; soda crystals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.