Sodium carbonate monohydrate is soluble in water and has the commonness of salt. Its use as bleach has been recognized by people, and the amount is gradually expanding, and also preliminarily shows its competitiveness with sodium perborate. As a new field of oxygen supply for respiration in first aid, sodium carbonate monohydrate has shown great superiority in oxygen supply compared with general methods in remote areas, front-line emergency patients, wounded, etc. Sodium percarbonate will have a great role in this field. Chemical properties Colorless rhombic crystal fine grain or white powder crystal. Relatively dense Chemicalbook degree 2.25. It is an alkaline inorganic salt. Soluble in water, insoluble in ethanol, ether. More stable in air than anhydrous sodium carbonate. Long-term exposure to the air is easy to absorb carbon dioxide in the air, and gradually becomes sodium sesquicarbonate (Na2CO3·NaHCO3·2H2O). When heated to about 100 ° C, water is lost and becomes anhydrous sodium carbonate. Mainly used for photography and film developer. It is also used as a dish detergent. Uses Mainly used as raw materials for detergents used in the photography industry