The main component of edible alkali is sodium carbonate, chemical formula Na2CO3, and its texture is rough. Baking soda is sodium bicarbonate, also known as acidic sodium carbonate, which is an acid salt with the chemical formula of NaHCO3.
But it's essentially the same. Alkaline noodles and baking soda are used to make pasta soft and refreshing. Basic noodles are often used by ordinary people, and some people sometimes put a little in porridge. Baking soda can be used not only to make ordinary pasta, but also to make western-style cakes.
The dosage of alkali should be appropriate. Too little alkali is called "small alkali", and your face will die and become sour. If too much alkali is called "big alkali", the flowers will turn yellow. Using commercially available active yeast to make dough basically does not need alkali neutralization.
When cooking corn porridge, the consistency of alkaline noodles can be increased. Drinking this kind of corn porridge often is especially good for people with high stomach acid, and there is no need to drink soda water. This is like eating more vegetables instead of buying vitamin tablets, which is a good way to replace treatment with food.
Alkaline noodles (soda, soda ash): scientific name sodium carbonate.
The chemical formula Na2CO3 alkaline noodles are edible alkali, and the English name is diet.
Alkali, the main component is sodium carbonate, which is rougher than screwdriver. Because the colors are similar, the identification method is mainly through the texture rubbed by hand. Traditional flour is used to neutralize excess acidity when fattening hair. This process is called "alkali leaching"
Sodium bicarbonate is an acid salt formed by neutralization of strong alkali and weak acid, which is weakly alkaline when dissolved in water. This characteristic can make it a leavening agent in food production. Sodium carbonate will remain after the action of sodium bicarbonate, and excessive use will make the finished product have an alkaline taste.
Sodium bicarbonate (NaHCO? (sodium)
Bicobonate) is a white fine crystal, and its solubility in water is less than that of sodium carbonate. This is an industrial chemical, which may be toxic. Solids above 50℃ begin to decompose gradually to produce sodium carbonate, carbon dioxide and water, and completely decompose at 440℃.
Extended data:
Sodium bicarbonate is an acid salt formed by neutralization of strong alkali and weak acid, which is weakly alkaline when dissolved in water. This characteristic can make it a leavening agent in food production. Sodium carbonate will remain after the action of sodium bicarbonate, and excessive use will make the finished product have an alkaline taste.
Sodium bicarbonate is a white crystal or a fine crystal of opaque monoclinic system. The specific gravity is 2. 15. Odorless, nontoxic, salty, soluble in water and slightly soluble in ethanol. It is soluble in 10 part of water at 25℃ and 12 part of water at about 18℃.
Its aqueous solution is slightly alkaline due to hydrolysis, stable at room temperature, easily decomposed when heated, gradually decomposed above 50℃, completely lost carbon dioxide at 270℃, unchanged in dry air, and slowly deliquesced in humid air.
It decomposes easily when heated. Slowly decompose in humid air. The reaction starts at about 50℃, producing carbon monoxide? At 100℃
All turned into sodium carbonate. It decomposes rapidly in weak acid, and its aqueous solution begins to decompose carbon dioxide and sodium carbonate at 20℃, and all of them are decomposed at boiling point.
Its solution is made of cold water without stirring.
Phenolphthalein test paper is only slightly alkaline, and the alkalinity increases when it is placed or heated. Freshly prepared 0. 1mol/L water solubility at 25℃
The pH value of the solution is 8.3. Low toxicity, median lethal dose (rats, oral) 4420mg/kg.
References:
Baidu encyclopedia-sodium bicarbonate