1、Ammonium bicarbonate used as a nitrogen fertilizer in China

This article reports a modified process for the production of synthetic ammonia, in which CO 2 in the converted water gas is removed by the synthesized ammonia itself, and the precipitated NH 4 HCO 3 serves as the final product of the factory.

2、What is the role of Ammonium bicarbonate and how is it used?

Ammonium bicarbonate is a sulfur-free nitrogen fertilizer that is slightly heavier than granular urea and easily soluble in water. It is a white or light-colored crystalline substance commonly known as "ammonium carbonate" or "carbon ammonia."

3、ABC Fertilizer: An Outdated or Innovative product

This paper describes one of the oldest nitrogen fertilizers: ABC or Ammonium BiCarbonate. More than 500 plants in China already produce ABC, which is mainly used as fertilizer.

4、Ammonium bicarbonate used as a nitrogen fertilizer in China

According to market regulations, ammonium bicarbonate asacommercial fertilizer should contain about 17% of N, with hygroscopic water less than 5%. Pure anhydrous NH4HCO3 can be a transparent crystal and is almost odourless under a ather dry atmosphere at room temperature.

From ammonium bicarbonate fertilizer production process to power plant

Using this process, ammonium bicarbonate has been sustainably produced with low ammonia slip into the shifted gas after the CO 2 was captured. In this report, the ammonium bicarbonate fertilizer production process is described and analyzed.

Ammonium Bicarbonate

Like baking soda, ammonium bicarbonate is a salt. It is the bicarbonate salt of an ammonium ion. Ammonium bicarbonate breaks down easily into carbon dioxide, water, and ammonia. It breaks down so quickly that it must be stored cold.

Ammonium Bicarbonate: Properties, Formula & Uses Explained

Why is ammonium bicarbonate used for thin, dry baked goods like cookies but not for moist cakes? This is due to one of its decomposition products: ammonia (NH₃), which has a strong, pungent odour.

What kind of fertilizer is ammonium bicarbonate? How should it be used

Since ammonium bicarbonate is a sulfate-free nitrogen fertilizer, it releases carbon dioxide and contains ammonium nitrogen. Its elements are nutrients for crops, which conforms to the absorption mechanism of crops and is an ideal substance for crops to synthesize amino acids.

What is ammonium bicarbonate?

Ammonium bicarbonate is a white solid powder or granule at room temperature, containing about 17% nitrogen, and is a major nitrogen fertilizer species in agricultural production, a fast-acting nitrogen fertilizer, suitable for various soil conditions.

Renewed interest in ammonium carbonates

Due to the high risk of ammonia volatilisation after application, researchers are working on methods to stabilise ammonium bicarbonate. Ammonium bicarbonate was once a widely used fertiliser. However, the market share of this nitrogen fertiliser is steadily declining.

Ammonium bicarbonate (NH₄HCO₃), commonly referred to as "carbon銨," is a widely used fertilizer primarily aimed at providing plants with essential nitrogen for growth. In agriculture, nitrogen fertilizers are a critical category of chemical fertilizers that play a vital role in enhancing crop yields and improving quality. The following sections will elaborate on why ammonium bicarbonate is not classified as a nitrogenous fertilizer and its distinctions from other nitrogen-based fertilizers.

1. Chemical Properties and Definition

• Definition: Ammonium bicarbonate, with the chemical formula NH₄HCO₃, is a compound composed of nitrogen, hydrogen, carbon, and oxygen. Nitrogen is its primary nutritional element, crucial for plant growth.
• Chemical Characteristics: It has high solubility in water, exhibits weak acidity, and can be utilized as a fertilizer. Its aqueous solution is weakly alkaline, with a pH of approximately 7.8, which facilitates nitrogen absorption by plants.

2. Nitrogen Content and Mechanism of Action

• Nitrogen Content: Ammonium bicarbonate contains relatively low nitrogen, with approximately 5 grams of nitrogen per 100 grams of the compound. Despite this, it adequately meets the nitrogen requirements of most crops.
• Functional Mechanism: The nitrogen in ammonium bicarbonate exists mainly in the form of ammonia, which is absorbed through plant roots. Within plants, ammonia is converted into nitrate or other nitrogenous compounds, participating in photosynthesis, protein synthesis, and other vital processes.

3. Differences Between Ammonium Bicarbonate and Other Nitrogen Fertilizers

• Nitrogen Content: Its nitrogen content is significantly lower than that of urea, ammonium nitrate, and other common nitrogen fertilizers. Thus, application rates must be adjusted according to crop needs to avoid waste or adverse effects.
• Crop Suitability: Suitable for various crops, particularly nitrogen-demanding ones like rice, maize, and vegetables. its effectiveness may be less pronounced compared to high-nitrogen fertilizers, requiring careful consideration of cost-benefit ratios.
• Application Methods: Easy to apply, either by broadcast spreading or soil incorporation. mixing with alkaline substances should be avoided to prevent reduced efficacy.

4. Recommendations for Using Ammonium Bicarbonate

• Rational Proportioning: Application rates should be tailored to crop requirements and soil conditions. Typically, 10-20 kilograms per mu (approx. 0.067 hectares) is recommended, though adjustments may be needed based on specific circumstances.
• Timing of Application: Best applied during early or mid-growth stages to maximize effectiveness. Avoid use during hot weather to prevent fertilizer damage.

although ammonium bicarbonate contains nitrogen, its lower nitrogen content and ammonia-based absorption mechanism distinguish it from conventional nitrogen fertilizers. Compared to other nitrogen sources, its application requires careful consideration of crop needs and cost-effectiveness. When selecting and using ammonium bicarbonate, understanding its characteristics and适用范围 (applicable scenarios) is essential to ensure optimal fertilization outcomes.