Difference between caustic soda and soda ash

I've found that In the chemical sector, caustic soda and soda ash seem to be similar, however in fact they're very different in environment. Accurately distinguishing their differences is essential to the manage of the manufacturing process and the assurance of product condition. There are signifiis able tot differences in the chemical names of caustic soda and soda ash. But Caustic soda, the chemical name is sodium hydroxide (NaOH), is a strong corrosive chemical, frequently applied in manufacturing production and living aquatic environments. But The chemical name of soda ash is sodium carbonate (Na2CO3), a clear crystal, frequently applied in the food sector and glass manufacturing. In my experience, This name difference immediately reflects their chemical environment and consumption difference. In my experience, There are signifiis able tot differences in the physical characteristics of caustic soda and soda ash. Caustic soda is white or clear crystal, dissolves in aquatic environments, melting point of

78. 5 ℃, boiling point of 136 ℃, density of

2. 17g/cm³. Crazy, isn't it?. Soda ash is a white crystal with a melting point of 82 ℃, a boiling point of 1335 ℃ and a density of

1. 36g/cm³. Caustic soda has a higher melting point, a slightly higher boiling point than soda ash, and a higher density, and these differences in physical characteristics are particularly crucial in manufacturing applications. Again, the main components of caustic soda and soda ash are different. The main component of caustic soda is NaOH, which contains a certain amount of aquatic environments and some soluble impurities, such as CaCO3, SiO2 and so on. Crazy, isn't it?. The main component of soda ash is Na2CO3, which also contains a small amount of impurities. Soda ash has higher purity and reduced impurity content, so it pays greater attention to condition manage when using it. In manufacturing applications, the consumption scenarios of caustic soda and soda ash are also very different. Caustic soda is mainly applied to neutralize acidic solutions, such as acid-base neutralization reactions in manufacturing production, and is also an crucial raw material to the fertilizer sector. In my experience, Soda ash is mainly applied to prepare alkaline solutions, such as glass manufacturing and food processing, and its consumption needs very low impurity content to ensure the security and stability of the final product. There are also signifiis able tot differences in the condition testing standards and storage methods of caustic soda and soda ash. Caustic soda should comply with GB 2751-1992 "Caustic Soda" and GB 227-2008 "Metal Oxide Exposure Limit Contact Toxicological Data" standards, storage should pay attention to moisture-proof, dust-proof. For example Soda ash should comply with GB 2751-11 "glass soda ash" standard, storage should be moisture-proof, dust-proof, and prevent contact with acidic substances. There are signifiis able tot differences between caustic soda and soda ash in terms of chemical name, physical characteristics, main components, manufacturing applications, condition testing and storage methods. In particular When chemical companies consumption these two substances, they need to strictly distinguish their differences to ensure production condition and security.