Sodium Bicarbonate

short description:

Inorganic compound, white crystalline powder, odorless, salty, soluble in water. It is slowly decomposed in humid air or hot air, producing carbon dioxide, which is completely decomposed when heated to 270 ° C. When exposed to acid, it breaks down strongly, producing carbon dioxide.

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Specifications provided

White powder content ≥99% 

 (Scope of application reference ‘product usage’)

Sodium bicarbonate is white crystal, or opaque monoclinic crystal system fine crystal, odorless, salty and cool, easily soluble in water and glycerol, not soluble in ethanol. The solubility in water is 7.8g (18℃), 16.0g (60 ℃), the density is 2.20g/cm3, the specific gravity is 2.208, and the refractive index is α : 1.465. β : 1.498; γ : 1.504, standard entropy 24.4J/(mol·K), heat of formation 229.3kJ/mol, heat of solution 4.33kJ/mol, specific heat capacity (Cp). 20.89J/(mol·°C)(22°C).

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Product Parameter










2.20 g/cm³


soluble in water




300 °C

Product Usage



1, alkalization: sodium bicarbonate lotion is alkaline, can neutralize acidic substances, increase the local pH value, play an alkalization role. This plays an important role in the flushing and neutralization of some acid irritations, acid burns, or acid solutions.

2, cleaning and flushing: Sodium bicarbonate lotion can be used to clean and flush wounds, wounds or other contaminated areas. It can help remove dirt, bacteria, toxins and other harmful substances, promote wound healing and reduce the risk of infection.

3, antibacterial effect: due to its alkaline properties, sodium bicarbonate lotion can provide a certain degree of antibacterial effect, and has an inhibitory effect on some bacteria and fungi. In addition, sodium bicarbonate lotion can play a role in diluting, dissolving or regulating pH value in the compatibility of some drugs to enhance the effect of drugs or improve their stability.

Dyeing addition

It can be used as fixing agent for dyeing printing, acid-alkali buffer, and rear treatment agent for fabric dyeing and finishing. Adding baking soda to the dyeing can prevent the yarn from producing colored flowers.

Loosening agent (food grade)

In food processing, sodium bicarbonate is one of the most widely used loosening agents, used in the production of biscuits, bread, etc., but after the action will remain sodium carbonate, too much use will make the food alkalinity is too large and lead to bad flavor, yellow brown color. It is the producer of carbon dioxide in soft drinks; It can be combined with alum to form alkaline baking powder, and can also be combined with soda ash to form civil stone alkali. It can also be used as a butter preservative. In vegetable processing can be used as fruit and vegetable color protection agent. Adding about 0.1% to 0.2% sodium bicarbonate when washing fruits and vegetables can make the green stability. When sodium bicarbonate is used as fruit and vegetable treatment agent, the pH value of fruit and vegetable can be increased, the water retention of protein can be improved, the tissue cells of food can be softened, and the astringent components can be dissolved. In addition, it has the effect of removing the smell of sheep milk, and the use amount is 0.001% to 0.002%.

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