AMMONIUM NITRATE

Aspect

Details

Chemical Composition

●Ammonium Nitrate (NH₄NO₃) is the nitrate salt of the ammonium ion, consisting of ammonia and nitric acid.

●It is a white crystalline solid highly soluble in water.

Production

●Manufactured through the neutralization of nitric acid (HNO₃) with ammonia (NH₃).

●Common methods include the Stengel process and the NSM/Norsk Hydro process.

Uses

●Fertilizer: High nitrogen content makes it widely used in agriculture. 

●Explosives: Combined with fuel oil to create ANFO, used in mining and demolition. 

●Cold Packs: Used in instant cold packs for injury treatment.

Safety Issues

●Ammonium nitrate can decompose at high temperatures, causing fires or explosions.

●It is an oxidizer, which can enhance combustion when exposed to fuels.

Historical Incidents

●Involved in major disasters, including the Oklahoma City bombing (1995) and the Beirut explosion(2020).

Storage and Regulations

●Must be stored in well-ventilated, cool, dry places away from fuels.

●Many countries regulate its sale to prevent misuse in explosives.

Environmental Impact

●Can lead to soil acidification and water contamination if overused as a fertilizer.

Alternatives

●Alternatives like urea or a fusion of ammonium nitrate with ammonium sulfate are being developed.

INDIAN FERTILISER INDUSTRY

●One of eight core industries. 

●The second biggest subsidy after food. 

●The Indian fertilizer industry is expected to reach Rs. 1.38 lakh crore by 2032, with a CAGR of 4.2% from 2024 to 2032, according to IMARC Group.

●In 2023, the market size was Rs. 94,210 crore.

●India is the second largest consumer of urea after China and second largest producer of Nitrogenous Fertiliser.

●This was driven by increased agricultural demands and strategic governmental interventions.

●FY24 saw fertilizer production at 45.2 million tonnes.

●India is the world's second-largest producer of fruits and vegetables.

●The geopolitical landscape and domestic production focus, particularly on nano-liquid urea, have influenced India's fertilizer market.

●Urea imports declined by 7%, DAP by 22%, and NPKs by 21% in FY24.

●Climate change challenges, addressed by the National Mission for Sustainable Agriculture (NMSA) and initiatives like PKVY, promote organic farming and continuous innovation in fertilizers.

PRACTICE QUESTION

Q:Consider the following heavy industries:
1. Fertilizer plants
2. Oil refineries
3. Steel plants
Green hydrogen is expected to play a significant role in decarbonizing how many of the above industries?

a) Only one

b) Only two

c) All three

d) None

Answer: c

Explanation:

●Statement 1 is correct: Green hydrogen is expected to significantly decarbonize fertilizer production, especially in the manufacturing of ammonia, which is a core component of many fertilizers. Ammonia production typically relies on natural gas, but green hydrogen can replace this with a cleaner alternative.

●Statement 2 is correct: Green hydrogen can decarbonize oil refineries, where hydrogen is used for processes like hydrocracking and desulfurization. Currently, most refineries use "grey hydrogen" derived from natural gas, but switching to green hydrogen can help reduce emissions.

●Statement 3 is correct: Green hydrogen is increasingly seen as a key solution for decarbonizing the steel industry. Steel production often uses carbon-intensive methods, particularly the use of coke in blast furnaces. Green hydrogen can replace coke as a reducing agent, leading to "green steel" production.