| Molecular Formula | Na2CO3·10H2O |
| Molar Mass | 286.14 |
| Physical and Chemical Properties | White crystals |
| Use | For fermentation, also used for household washing and washing of wool |
Decahydrate sodium carbonate is a colorless crystalline solid with a wide range of applications.
1. Industrial use: Sodium carbonate decahydrate is an important industrial raw material, widely used in glass manufacturing, detergent production, papermaking, dye and pigment industries. It can be used to produce various materials such as glass, ceramics, fibers, and chemical fibers.
2. Detergent use: Sodium carbonate decahydrate has good cleaning ability and can be used as one of the components of detergents. It can soften water quality, enhance washing effect, and remove oil and stains in detergents.
3. Water treatment use: Sodium carbonate decahydrate is also one of the commonly used chemical additives in the field of water treatment. It can be used to regulate the acidity and alkalinity of water, remove hardness substances from water, and prevent blockage of water pipes and equipment.
4. Pulping and papermaking applications: Sodium carbonate decahydrate can be used as a deinking agent in papermaking processes. It can react chemically with pigments in ink to dissolve and remove ink from pulp.
5. Food processing use: Soda ash can also be used in food processing. It can be used for the production of yeast products, as well as to regulate the acidity and alkalinity of food, promoting the baking and fermentation effects of food.
It should be noted that sodium carbonate decahydrate is an alkaline substance, and attention should be paid to preventing contact with acidic substances and avoiding chemical reactions during use. Meanwhile, safety precautions should also be taken during use to avoid inhaling dust or direct contact with skin and eyes.
Decahydrate sodium carbonate is a compound with good solubility and neutralization properties, widely used in cleaning agents, water treatment, and chemical experiments.
Physical properties:
-Appearance: Sodium carbonate decahydrate is a colorless crystalline solid, commonly in the form of colorless or white solid powder.
-Solubility: It has good solubility in water, can dissolve quickly, and can absorb moisture.
-Crystal water content: According to the chemical formula, it contains 10 crystal water molecules.
Chemical properties:
-Neutrality: Sodium carbonate decahydrate is a neutralizing compound that can react with acids to produce corresponding salts and water.
-Thermal stability: During the heating process, it gradually loses its crystalline water and generates anhydrous sodium carbonate, a process known as dehydration.
-Alkalinity: It has alkalinity and can react with acids to produce alkaline salts.
-Melting point: The melting point of sodium carbonate decahydrate is approximately 53 ° C.
Application:
-Cleaning agent: Sodium carbonate decahydrate is a common cleaning agent that can be used to clean oil, stains, and hard water deposits.
-Water treatment agent: It can regulate the acidity and alkalinity of water and is used in water treatment and purification processes.
-Chemical experiment: Sodium carbonate decahydrate is an important commonly used reagent in the laboratory.
Decahydrate sodium carbonate, also known as soda crystals, is a crystalline compound that can be prepared by reacting sodium carbonate with hydrated sodium carbonate.
The method for preparing soda crystals is as follows:
1. Prepare sodium carbonate (Na2CO3) and hydrated sodium carbonate (Na2CO3 · H2O).
2. Mix sodium carbonate with an appropriate amount of hydrated sodium carbonate.
3. Add an appropriate amount of water to the mixture and dissolve it thoroughly by stirring.
4. Filter the solution to remove impurities and solid particles.
5. Pour the filtered solution into a container and let it crystallize at an appropriate temperature.
6. After crystallization, discard the residual solution and wash the crystal with cold water to remove surface impurities.
7. Finally, air dry the washed crystals.
1. Emergency measures:
-In case of fire: use foam, carbon dioxide or dry sand instead of water.
-Leakage treatment: Prevent the solution from entering the sewer or underground. Use adsorbents and isolation dams to control the diffusion of leaked materials. Avoid contact.
-Personnel protection: Wear appropriate protective equipment, including chemical goggles, protective gloves, and corrosion-resistant clothing.
2. Storage and Handling:
-Storage conditions: Store in a dry and well ventilated place, away from sources of fire and combustibles.
-Taboos: Avoid contact with acids, oxidants, and combustibles.
-Avoidance: Avoid inhaling dust, and avoid contact with skin and eyes.
3. Human health and safety:
-Inhalation and swallowing: May cause respiratory and gastrointestinal irritation, causing symptoms such as cough and stomach pain. Avoid inhaling dust or coming into contact with solutions.
-Eye contact: can cause irritation and eye damage. If in contact, immediately rinse with plenty of water for at least 15 minutes and seek medical assistance.
-Skin contact: May cause irritation and allergic reactions. If in contact with the skin, rinse immediately with plenty of water and seek medical attention as needed.
-First aid measures: In case of inhalation, contact, or swallowing, seek medical attention immediately and provide necessary first aid procedures.
4. Environmental impact:
-Decahydrate sodium carbonate is dissolved by water in the natural environment and has a toxic effect on aquatic organisms to a certain extent.
-Avoid discharging it into water bodies, soil, or atmosphere, and handle it correctly according to local regulations.