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[Chemical Knowledge]：What are the upstream raw materials for nitrogen and what are the downstream products?

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In the field of chemical production raw materials, nitrogen is an important gas, which is widely used in various chemical production processes. There are many upstream and downstream related products of nitrogen, and some of the main products will be listed below.

1. Upstream products

nitrogen upstream products mainly include air and natural gas. Air is the main source of nitrogen, and high purity nitrogen can be extracted by air separation technology. Natural gas also contains a certain amount of nitrogen, after separation and treatment can be obtained after nitrogen products.

2. Downstream product

(1) Ammonia: Nitrogen reacts with hydrogen at high temperature and high pressure to generate ammonia, which is an important raw material for fertilizers, nitric acid, plastics, etc.

(2) Nitrate: Nitrate can be obtained by the reaction of ammonia and acid, which is commonly used as chemical fertilizer and gunpowder.

(3) Nitrogen oxides: Nitrogen can react with oxygen at high temperatures to generate nitrogen oxides for the production of nitric acid, nitrogen fertilizers, etc.

(4) Nitrite: Nitrite is an important compound in the nitrogen cycle, which can be used in food preservation, medicine and other fields.

(5) Nitrogen protective gas: Nitrogen is often used as a protective gas to prevent metal oxidation during processing.

In short, the upstream and downstream related products of nitrogen are very extensive, involving chemical fertilizers, gunpowder, food preservation, medicine, metal processing and other fields.

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