An independent claim is also included for producing a silica dispersion as above by adding solid or aqueous sodium carbonate to a silica dispersion at room temperature while stirring.doi:DE102005052202DELLER, KLAUSDENG, YIOSWALD, MONIKA
Sodium carbonate( 497-19-8), Na2CO3, is a sodium salt of carbonic acid. The pure product appears as a while, odorless powder with a strong alkaline taste. It has high hygroscopicity. It can be easily dissolved in water to form an aqueous solution with moderate alkalinity. Sodium carbonate ...
Sodium carbonate (molecular formula: Na2CO3), is the water soluble sodium salt of carbonate. The pure product appears as a while, odorless powder with a strong alkaline taste. It has high hygroscopicity. It can be easily dissolved in water to form an aqueous solution with moderate alkalinity. ...
Chemical name: sodium carbonate, industrial soda ash the molecular formula: Na2CO3 Quality Standard: GB201.1-2004 the molecular weight: 105.99 Performance: The white crystalline powder is easily soluble in water, the aqueous solution is alkaline, and it is easy to absorb water and carbon dio...
Preparation Sodium percarbonate is produced by the reaction of sodium carbonate with hydrogen peroxide, which can be done via dry, spray and wet processes. In the dry process aqueous hydrogen peroxide solution is sprayed on solid sodium carbonate; a solid-liquid reaction yields sodium percarbonate. ...
Perborate as a bleach component in heavy-duty laundry detergents is being increasingly substituted by percarbonate. In the wash process,sodium percarbonatedoes form hydrogen peroxide and sodium carbonate. Sodium carbonate is a water-soluble mineral and ubiquitously present in the aqueous environment as th...
Thereaction was quenched by addition of aqueous methanol, concentrated in vacuoand purified by flash chromatography on silica gel (methylenechloride:methanol, 87:13) to give the title compound (44 mg). 三、硼氢化钠(钾)还原羧酸酯成伯醇示例 ...
(or in inert liquids such askeroseneornaphtha). It is significantly more reactive in air as a liquid than as a solid, and the liquid can ignite at about 125 °C (257 °F). In a comparatively dry atmosphere, sodium burns quietly, giving off a dense white caustic smoke, which can ...
Ammonia-cyanide-sulphite solution, mix 95 ml of 10 M aqueous ammonia with 5 ml of a solution ofpotassiumcyanide (CARE!) containing 10 g per 100 ml, and dissolve 5 g ofsodium metabisulphitein the mixture. Dithizonesolution, dissolve 2 mg of the solid reagent in 100 ml ofpurecarbon tetrach...
Preparation Sodium acetate is prepared by reacting sodium hydroxide or sodium carbonate with acetic acid in aqueous solution. The solution is evaporated to obtain hydrated crystals of sodium acetate. NaOH + CH3COOH → CH3COONa + H2O Na2CO3 + CH3COOH → 2CH3COONa + CO2 + H2O Definition ChEBI: Sodi...