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[Chemical Knowledge]：What are the upstream raw materials of big soda? What do the downstream products contain?

Read： 362 Time：13months ago Source：Transform the World with Simplicity

Big soda, also known as sodium thiosulfate, is an important inorganic chemical raw material that is widely used in many fields. In the field of raw materials for chemical production, the upstream and downstream related products of big soda mainly include the following categories:

upstream products:

1. Sulfur: Sulfur is one of the main raw materials for big soda production, which is used to react with big soda to generate sodium thiosulfate.
2. Caustic soda: Caustic soda is sodium hydroxide, which is also an important raw material for soda production. It reacts with sulfur to form sodium thiosulfate.

downstream products:

1. Photographic medicine: Big soda can be used as a photographic fixer to remove the unexposed part of the film.
2. Bleach: Big soda has a certain reducibility and can be used as a bleaching agent for dyeing, printing and other processes.
3. dechlorination agent: in water treatment, soda can be used as dechlorination agent to remove residual chlorine in water.
4. Metal treatment agent: Soda can be used to clean and treat metal surfaces to remove oxides and rust.

above is only a part of the upstream and downstream related products of big soda. In fact, big soda is widely used in chemical industry, medicine, agriculture and other fields, and its upstream and downstream related products are also very rich.

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